MAX19538ETL+T中文资料 - 360文档中心

MAX809中文资料_数据手册_参数

MAX809R/S/T/Z VCC < 3.6 V; MAX810R/S/T/Z Tamb = –40 °C to +85 °C
MAX809J/L/M MAX810J/L/M
VCC < 5.5 V; Tamb = +85 °C to +105 °C
MAX809R/S/T/Z VCC < 3.6 V; MAX810R/S/T/Z Tamb = +85 °C to +105 °C
2003 Aug 08
4
Philips Semiconductors
3-pin microprocessor resets
Product data
MAX809/MAX810
ELECTRICAL CHARACTERISTICS
VCC = full range (Tamb = –40 °C to +105 °C) unless otherwise noted; typical values are at Tamb = +25 °C, and VCC = 5 V (J/L/M versions), VCC = 3.3 V (T/S versions), VCC = 3 V (R version), and VCC = 2.5 V (Z version) (Note 1).
TEMPERATURE RANGE
–40 to +105 °C –40 to +105 °C –40 to +105 °C –40 to +105 °C
Part number
MAX809
MAX809ZD, MAX809ZW
MAX809RD, MAX809RW

MAX13085EESA-T中文资料

General DescriptionThe MAX13080E–MAX13089E +5.0V, ±15kV ESD-protect-ed, RS-485/RS-422 transceivers feature one driver and one receiver. These devices include fail-safe circuitry,guaranteeing a logic-high receiver output when receiver inputs are open or shorted. The receiver outputs a logic-high if all transmitters on a terminated bus are disabled (high impedance). The MAX13080E–MAX13089E include a hot-swap capability to eliminate false transitions on the bus during power-up or hot insertion.The MAX13080E/MAX13081E/MAX13082E feature reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to 250kbps. The MAX13083E/MAX13084E/MAX13085E also feature slew-rate-limited drivers but allow transmit speeds up to 500kbps. The MAX13086E/MAX13087E/MAX13088E driver slew rates are not limited, making transmit speeds up to 16Mbps possible. The MAX13089E slew rate is pin selectable for 250kbps,500kbps, and 16Mbps.The MAX13082E/MAX13085E/MAX13088E are intended for half-duplex communications, and the MAX13080E/MAX13081E/MAX13083E/MAX13084E/MAX13086E/MAX13087E are intended for full-duplex communica-tions. The MAX13089E is selectable for half-duplex or full-duplex operation. It also features independently programmable receiver and transmitter output phase through separate pins.The MAX13080E–MAX13089E transceivers draw 1.2mA of supply current when unloaded or when fully loaded with the drivers disabled. All devices have a 1/8-unit load receiver input impedance, allowing up to 256transceivers on the bus.The MAX13080E/MAX13083E/MAX13086E/MAX13089E are available in 14-pin PDIP and 14-pin SO packages.The MAX13081E/MAX13082E/MAX13084E/MAX13085E/MAX13087E/MAX13088E are available in 8-pin PDIP and 8-pin SO packages. The devices operate over the com-mercial, extended, and automotive temperature ranges.ApplicationsUtility Meters Lighting Systems Industrial Control Telecom Security Systems Instrumentation ProfibusFeatures♦+5.0V Operation♦Extended ESD Protection for RS-485/RS-422 I/O Pins±15kV Human Body Model ♦True Fail-Safe Receiver While Maintaining EIA/TIA-485 Compatibility ♦Hot-Swap Input Structures on DE and RE ♦Enhanced Slew-Rate Limiting Facilitates Error-Free Data Transmission(MAX13080E–MAX13085E/MAX13089E)♦Low-Current Shutdown Mode (Except MAX13081E/MAX13084E/MAX13087E)♦Pin-Selectable Full-/Half-Duplex Operation (MAX13089E)♦Phase Controls to Correct for Twisted-Pair Reversal (MAX13089E)♦Allow Up to 256 Transceivers on the Bus ♦Available in Industry-Standard 8-Pin SO PackageMAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers________________________________________________________________Maxim Integrated Products 1Ordering Information19-3590; Rev 1; 4/05For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at .Selector Guide, Pin Configurations, and Typical Operating Circuits appear at end of data sheet.Ordering Information continued at end of data sheet.M A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSDC ELECTRICAL CHARACTERISTICS(V CC = +5.0V ±10%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V and T A = +25°C.) (Note 1)Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.(All Voltages Referenced to GND)Supply Voltage (V CC ).............................................................+6V Control Input Voltage (RE , DE, SLR,H/F , TXP, RXP)......................................................-0.3V to +6V Driver Input Voltage (DI)...........................................-0.3V to +6V Driver Output Voltage (Z, Y, A, B).............................-8V to +13V Receiver Input Voltage (A, B)....................................-8V to +13V Receiver Input VoltageFull Duplex (A, B)..................................................-8V to +13V Receiver Output Voltage (RO)....................-0.3V to (V CC + 0.3V)Driver Output Current.....................................................±250mAContinuous Power Dissipation (T A = +70°C)8-Pin SO (derate 5.88mW/°C above +70°C).................471mW 8-Pin Plastic DIP (derate 9.09mW/°C above +70°C).....727mW 14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW 14-Pin Plastic DIP (derate 10.0mW/°C above +70°C)...800mW Operating Temperature RangesMAX1308_EC_ _.................................................0°C to +75°C MAX1308_EE_ _..............................................-40°C to +85°C MAX1308_EA_ _............................................-40°C to +125°C Junction Temperature......................................................+150°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10s).................................+300°CMAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers_______________________________________________________________________________________3DC ELECTRICAL CHARACTERISTICS (continued)(V CC = +5.0V ±10%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V and T A = +25°C.) (Note 1)M A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 4_______________________________________________________________________________________DRIVER SWITCHING CHARACTERISTICSMAX13080E/MAX13081E/MAX13082E/MAX13089E WITH SRL = UNCONNECTED (250kbps)(V CC = +5.0V ±10%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V and T A = +25°C.)RECEIVER SWITCHING CHARACTERISTICSMAX13080E/MAX13081E/MAX13082E/MAX13089E WITH SRL = UNCONNECTED (250kbps)(V CC = +5.0V ±10%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V and T A = +25°C.)MAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers_______________________________________________________________________________________5DRIVER SWITCHING CHARACTERISTICSMAX13083E/MAX13084E/MAX13085E/MAX13089E WITH SRL = V CC (500kbps)(V CC = +5.0V ±10%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V and T A = +25°C.)RECEIVER SWITCHING CHARACTERISTICSMAX13083E/MAX13084E/MAX13085E/MAX13089E WITH SRL = V CC (500kbps)(V CC = +5.0V ±10%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V and T A = +25°C.)M A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 6_______________________________________________________________________________________DRIVER SWITCHING CHARACTERISTICSMAX13086E/MAX13087E/MAX13088E/MAX13089E WITH SRL = GND (16Mbps)(V CC = +5.0V ±10%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V and T A = +25°C.)RECEIVER SWITCHING CHARACTERISTICSMAX13086E/MAX13087E/MAX13088E/MAX13089E WITH SRL = GND (16Mbps)(V CC = +5.0V ±10%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V and T A = +25°C.)Note 2:∆V OD and ∆V OC are the changes in V OD and V OC , respectively, when the DI input changes state.Note 3:The short-circuit output current applies to peak current just prior to foldback current limiting. The short-circuit foldback outputcurrent applies during current limiting to allow a recovery from bus contention.MAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers_______________________________________________________________________________________70.800.901.501.101.001.201.301.401.60-40-10520-253550958011065125SUPPLY CURRENT vs. TEMPERATURETEMPERATURE (°C)S U P P L Y C U R R E N T (m A )0201040305060021345OUTPUT CURRENTvs. RECEIVER OUTPUT-HIGH VOLTAGEM A X 13080E -89E t o c 02OUTPUT HIGH VOLTAGE (V)O U T P U T C U R R E N T (m A )20104030605070021345OUTPUT CURRENTvs. RECEIVER OUTPUT-LOW VOLTAGEM A X 13080E -89E t o c 03OUTPUT LOW VOLTAGE (V)O U T P U T C U R R E N T (m A )4.04.44.24.84.65.25.05.4RECEIVER OUTPUT-HIGH VOLTAGEvs. TEMPERATURETEMPERATURE (°C)O U T P U T H I G H V O L T A G E (V )-40-10520-2535509580110651250.10.70.30.20.40.50.60.8RECEIVER OUTPUT-LOW VOLTAGEvs. TEMPERATURETEMPERATURE (°C)O U T P U T L O W V O L T A G E (V )-40-10520-25355095801106512502040608010012014016012345DRIVER DIFFERENTIAL OUTPUT CURRENT vs. DIFFERENTIAL OUTPUT VOLTAGEDIFFERENTIAL OUTPUT VOLTAGE (V)D I F FE R E N T I A L O U T P U T C U R R E N T (m A )2.02.82.43.63.24.44.04.8DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs. TEMPERATURED I F FE R E N T I A L O U T P U T V O L T A G E (V )-40-10520-253550958011065125TEMPERATURE (°C)40201008060120140180160200-7-5-4-6-3-2-1012354OUTPUT CURRENT vs. TRANSMITTEROUTPUT-HIGH VOLTAGEOUTPUT HIGH VOLTAGE (V)O U T P U T C U R R E N T (m A )60402080100120140160180200042681012OUTPUT CURRENT vs. TRANSMITTEROUTPUT-LOW VOLTAGEOUTPUT-LOW VOLTAGE (V)O U T P U T C U R R E N T (m A )Typical Operating Characteristics(V CC = +5.0V, T A = +25°C, unless otherwise noted.)M A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 8_______________________________________________________________________________________21543679810SHUTDOWN CURRENT vs. TEMPERATUREM A X 13080E -89E t o c 10S H U T D O W N C U R R E N T (µA )-40-10520-253550958011065125TEMPERATURE (°C)600800700100090011001200DRIVER PROPAGATION DELAY vs. TEMPERATURE (250kbps)D R I VE R P R O P A G A T I O N D E L A Y (n s )-40-10520-253550958011065125TEMPERATURE (°C)300400350500450550600DRIVER PROPAGATION DELAY vs. TEMPERATURE (500kbps)D R I VE R P R O P A G A T I O N D E L A Y (n s )-40-10520-253550958011065125TEMPERATURE (°C)1070302040506080DRIVER PROPAGATION DELAY vs. TEMPERATURE (16Mbps)D R I VE R P R O P A G A T I O N D E L A Y (n s )-40-10520-253550958011065125TEMPERATURE (°C)40201008060120140160180RECEIVER PROPAGATION DELAYvs. TEMPERATURE (250kpbs AND 500kbps)R E C E I V E R P R O P A G A T I O N D E L A Y (n s )-40-10520-253550958011065125TEMPERATURE (°C)40201008060120140160180RECEIVER PROPAGATION DELAYvs. TEMPERATURE (16Mbps)R EC E I V E R P R O P A G AT I O N D E L A Y (n s )-40-10520-253550958011065125TEMPERATURE (°C)2µs/div DRIVER PROPAGATION DELAY (250kbps)DI 2V/divV Y - V Z 5V/divR L = 100Ω200ns/divRECEIVER PROPAGATION DELAY(250kbps AND 500kbps)V A - V B 5V/divRO 2V/divTypical Operating Characteristics (continued)(V CC = +5.0V, T A = +25°C, unless otherwise noted.)MAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers_______________________________________________________________________________________9Test Circuits and Waveforms400ns/divDRIVER PROPAGATION DELAY (500kbps)DI 2V/divR L = 100ΩV Y - V Z 5V/div10ns/div DRIVER PROPAGATION DELAY (16Mbps)DI 2V/divR L = 100ΩV Y 2V/divV Z 2V/div40ns/divRECEIVER PROPAGATION DELAY (16Mbps)V B 2V/divR L = 100ΩRO 2V/divV A 2V/divTypical Operating Characteristics (continued)(V CC = +5.0V, T A = +25°C, unless otherwise noted.)Figure 2. Driver Timing Test CircuitM A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 10______________________________________________________________________________________Test Circuits and Waveforms (continued)Figure 4. Driver Enable and Disable Times (t DHZ , t DZH , t DZH(SHDN))DZL DLZ DLZ(SHDN)MAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversTest Circuits and Waveforms (continued)Figure 6. Receiver Propagation Delay Test CircuitM A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversMAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversMAX13080E/MAX13083E/MAX13086EMAX13081E/MAX13084E/MAX13086E/MAX13087EFunction TablesM A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX13082E/MAX13085E/MAX13088EFunction Tables (continued)MAX13089EDetailed Description The MAX13080E–MAX13089E high-speed transceivers for RS-485/RS-422 communication contain one driver and one receiver. These devices feature fail-safe circuit-ry, which guarantees a logic-high receiver output when the receiver inputs are open or shorted, or when they are connected to a terminated transmission line with all dri-vers disabled (see the Fail-Safe section). The MAX13080E/MAX13082E/MAX13083E/MAX13085E/ MAX13086E/MAX13088E/MAX13089E also feature a hot-swap capability allowing line insertion without erroneous data transfer (see the Hot Swap Capability section). The MAX13080E/MAX13081E/MAX13082E feature reduced slew-rate drivers that minimize EMI and reduce reflec-tions caused by improperly terminated cables, allowing error-free data transmission up to 250kbps. The MAX13083E/MAX13084E/MAX13085E also offer slew-rate limits allowing transmit speeds up to 500kbps. The MAX13086E/MAX13087E/MAX13088Es’ driver slew rates are not limited, making transmit speeds up to 16Mbps possible. The MAX13089E’s slew rate is selectable between 250kbps, 500kbps, and 16Mbps by driving a selector pin with a three-state driver.The MAX13082E/MAX13085E/MAX13088E are half-duplex transceivers, while the MAX13080E/MAX13081E/ MAX13083E/MAX13084E/MAX13086E/MAX13087E are full-duplex transceivers. The MAX13089E is selectable between half- and full-duplex communication by driving a selector pin (H/F) high or low, respectively.All devices operate from a single +5.0V supply. Drivers are output short-circuit current limited. Thermal-shutdown circuitry protects drivers against excessive power dissi-pation. When activated, the thermal-shutdown circuitry places the driver outputs into a high-impedance state.Receiver Input Filtering The receivers of the MAX13080E–MAX13085E, and the MAX13089E when operating in 250kbps or 500kbps mode, incorporate input filtering in addition to input hysteresis. This filtering enhances noise immunity with differential signals that have very slow rise and fall times. Receiver propagation delay increases by 25% due to this filtering.Fail-Safe The MAX13080E family guarantees a logic-high receiver output when the receiver inputs are shorted or open, or when they are connected to a terminated transmission line with all drivers disabled. This is done by setting the receiver input threshold between -50mV and -200mV. If the differential receiver input voltage (A - B) is greater than or equal to -50mV, RO is logic-high. If (A - B) is less than or equal to -200mV, RO is logic-low. In the case of a terminated bus with all transmitters disabled, the receiv-er’s differential input voltage is pulled to 0V by the termi-nation. With the receiver thresholds of the MAX13080E family, this results in a logic-high with a 50mV minimumnoise margin. Unlike previous fail-safe devices, the-50mV to -200mV threshold complies with the ±200mVEIA/TIA-485 standard.Hot-Swap Capability (Except MAX13081E/MAX13084E/MAX13087E)Hot-Swap InputsWhen circuit boards are inserted into a hot or powered backplane, differential disturbances to the data buscan lead to data errors. Upon initial circuit board inser-tion, the data communication processor undergoes itsown power-up sequence. During this period, the processor’s logic-output drivers are high impedanceand are unable to drive the DE and RE inputs of these devices to a defined logic level. Leakage currents up to±10µA from the high-impedance state of the proces-sor’s logic drivers could cause standard CMOS enableinputs of a transceiver to drift to an incorrect logic level. Additionally, parasitic circuit board capacitance couldcause coupling of V CC or GND to the enable inputs. Without the hot-swap capability, these factors could improperly enable the transceiver’s driver or receiver.When V CC rises, an internal pulldown circuit holds DElow and RE high. After the initial power-up sequence,the pulldown circuit becomes transparent, resetting thehot-swap tolerable input.Hot-Swap Input CircuitryThe enable inputs feature hot-swap capability. At theinput there are two NMOS devices, M1 and M2 (Figure 9). When V CC ramps from zero, an internal 7µstimer turns on M2 and sets the SR latch, which alsoturns on M1. Transistors M2, a 1.5mA current sink, andM1, a 500µA current sink, pull DE to GND through a5kΩresistor. M2 is designed to pull DE to the disabledstate against an external parasitic capacitance up to100pF that can drive DE high. After 7µs, the timer deactivates M2 while M1 remains on, holding DE low against three-state leakages that can drive DE high. M1 remains on until an external source overcomes the required input current. At this time, the SR latch resetsand M1 turns off. When M1 turns off, DE reverts to a standard, high-impedance CMOS input. Whenever V CCdrops below 1V, the hot-swap input is reset.For RE there is a complementary circuit employing two PMOS devices pulling RE to V CC. MAX13080E–MAX13089E+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversM A X 13080E –M A X 13089EMAX13089E ProgrammingThe MAX13089E has several programmable operating modes. Transmitter rise and fall times are programma-ble, resulting in maximum data rates of 250kbps,500kbps, and 16Mbps. To select the desired data rate,drive SRL to one of three possible states by using a three-state driver: V CC , GND, or unconnected. F or 250kbps operation, set the three-state device in high-impedance mode or leave SRL unconnected. F or 500kbps operation, drive SRL high or connect it to V CC .F or 16Mbps operation, drive SRL low or connect it to GND. SRL can be changed during operation without interrupting data communications.Occasionally, twisted-pair lines are connected backward from normal orientation. The MAX13089E has two pins that invert the phase of the driver and the receiver to cor-rect this problem. F or normal operation, drive TXP and RXP low, connect them to ground, or leave them uncon-nected (internal pulldown). To invert the driver phase,drive TXP high or connect it to V CC . To invert the receiver phase, drive RXP high or connect it to V CC . Note that the receiver threshold is positive when RXP is high.The MAX13089E can operate in full- or half-duplex mode. Drive H/F low, leave it unconnected (internal pulldown), or connect it to GND for full-duplex opera-tion. Drive H/F high for half-duplex operation. In full-duplex mode, the pin configuration of the driver and receiver is the same as that of a MAX13080E. In half-duplex mode, the receiver inputs are internally connect-ed to the driver outputs through a resistor-divider. This effectively changes the function of the device’s outputs.Y becomes the noninverting driver output and receiver input, Z becomes the inverting driver output and receiver input. In half-duplex mode, A and B are still connected to ground through an internal resistor-divider but they are not internally connected to the receiver.±15kV ESD ProtectionAs with all Maxim devices, ESD-protection structures are incorporated on all pins to protect against electro-static discharges encountered during handling and assembly. The driver outputs and receiver inputs of the MAX13080E family of devices have extra protection against static electricity. Maxim’s engineers have devel-oped state-of-the-art structures to protect these pins against ESD of ±15kV without damage. The ESD struc-tures withstand high ESD in all states: normal operation,shutdown, and powered down. After an ESD event, the MAX13080E–MAX13089E keep working without latchup or damage.ESD protection can be tested in various ways. The transmitter outputs and receiver inputs of the MAX13080E–MAX13089E are characterized for protec-tion to the following limits:•±15kV using the Human Body Model•±6kV using the Contact Discharge method specified in IEC 61000-4-2ESD Test ConditionsESD performance depends on a variety of conditions.Contact Maxim for a reliability report that documents test setup, test methodology, and test results.Human Body ModelFigure 10a shows the Human Body Model, and Figure 10b shows the current waveform it generates when dis-charged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest,which is then discharged into the test device through a 1.5k Ωresistor.IEC 61000-4-2The IEC 61000-4-2 standard covers ESD testing and performance of finished equipment. However, it does not specifically refer to integrated circuits. The MAX13080E family of devices helps you design equip-ment to meet IEC 61000-4-2, without the need for addi-tional ESD-protection components.+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversThe major difference between tests done using the Human Body Model and IEC 61000-4-2 is higher peak current in IEC 61000-4-2 because series resistance is lower in the IEC 61000-4-2 model. Hence, the ESD with-stand voltage measured to IEC 61000-4-2 is generally lower than that measured using the Human Body Model. Figure 10c shows the IEC 61000-4-2 model, and Figure 10d shows the current waveform for IEC 61000-4-2 ESD Contact Discharge test.Machine Model The machine model for ESD tests all pins using a 200pF storage capacitor and zero discharge resis-tance. The objective is to emulate the stress caused when I/O pins are contacted by handling equipment during test and assembly. Of course, all pins require this protection, not just RS-485 inputs and outputs.Applications Information256 Transceivers on the BusThe standard RS-485 receiver input impedance is 12kΩ(1-unit load), and the standard driver can drive up to 32-unit loads. The MAX13080E family of transceivers has a1/8-unit load receiver input impedance (96kΩ), allowingup to 256 transceivers to be connected in parallel on one communication line. Any combination of these devices,as well as other RS-485 transceivers with a total of 32-unit loads or fewer, can be connected to the line.Reduced EMI and ReflectionsThe MAX13080E/MAX13081E/MAX13082E feature reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to250kbps. The MAX13083E/MAX13084E/MAX13085Eoffer higher driver output slew-rate limits, allowing transmit speeds up to 500kbps. The MAX13089E withSRL = V CC or unconnected are slew-rate limited. WithSRL unconnected, the MAX13089E error-free data transmission is up to 250kbps. With SRL connected toV CC,the data transmit speeds up to 500kbps. MAX13080E–MAX13089E+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversM A X 13080E –M A X 13089ELow-Power Shutdown Mode (Except MAX13081E/MAX13084E/MAX13087E)Low-power shutdown mode is initiated by bringing both RE high and DE low. In shutdown, the devices typically draw only 2.8µA of supply current.RE and DE can be driven simultaneously; the devices are guaranteed not to enter shutdown if RE is high and DE is low for less than 50ns. If the inputs are in this state for at least 700ns, the devices are guaranteed to enter shutdown.Enable times t ZH and t ZL (see the Switching Characteristics section) assume the devices were not in a low-power shutdown state. Enable times t ZH(SHDN)and t ZL(SHDN)assume the devices were in shutdown state. It takes drivers and receivers longer to become enabled from low-power shutdown mode (t ZH(SHDN), t ZL(SHDN))than from driver/receiver-disable mode (t ZH , t ZL ).Driver Output ProtectionTwo mechanisms prevent excessive output current and power dissipation caused by faults or by bus contention.The first, a foldback current limit on the output stage,provides immediate protection against short circuits over the whole common-mode voltage range (see the Typical Operating Characteristics ). The second, a thermal-shut-down circuit, forces the driver outputs into a high-imped-ance state if the die temperature exceeds +175°C (typ).Line LengthThe RS-485/RS-422 standard covers line lengths up to 4000ft. F or line lengths greater than 4000ft, use the repeater application shown in Figure 11.Typical ApplicationsThe MAX13082E/MAX13085E/MAX13088E/MAX13089E transceivers are designed for bidirectional data commu-nications on multipoint bus transmission lines. F igures 12 and 13 show typical network applications circuits. To minimize reflections, terminate the line at both ends in its characteristic impedance, and keep stub lengths off the main line as short as possible. The slew-rate-lim-ited MAX13082E/MAX13085E and the two modes of the MAX13089E are more tolerant of imperfect termination.Chip InformationTRANSISTOR COUNT: 1228PROCESS: BiCMOS+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversFigure 11. Line Repeater for MAX13080E/MAX13081E/MAX13083E/MAX13084E/MAX13086E/MAX13087E/MAX13089E in Full-Duplex Mode+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversMAX13080E–MAX13089EM A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversPin Configurations and Typical Operating CircuitsMAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers______________________________________________________________________________________21Pin Configurations and Typical Operating Circuits (continued)M A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 22______________________________________________________________________________________Ordering Information (continued)MAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers______________________________________________________________________________________23Package Information (continued)(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)。

MAX-STREAM

zTable of ContentsProduct Overview __________________________________________________________________________________________________ 3 Front/top ______________________________________________________________________________________________________________________ 3 Back _____________________________________________________________________________________________________________________________ 5 Side ______________________________________________________________________________________________________________________________ 6 Help ________________________________________________________________________________________________________________________ 7 Where to find more help _______________________________________________________________________________________________ 7 Set Up ____________________________________________________________________________________________________________________ 8 What you’ll need ___________________________________________________________________________________________________________ 8 Linksys Whole Home Wi-Fi System Settings ______________________________________________________ 11 Log in to the Linksys app ___________________________________________________________________________________________ 11 Dashboard _________________________________________________________________________________________________________________ 12 Devices ______________________________________________________________________________________________________________________ 13 To view or change device details ______________________________________________________________________________________________ 14 Wi-Fi Settings ____________________________________________________________________________________________________________ 15 Advanced Settings ___________________________________________________________________________________________________________________ 16 Connect a Device with WPS _____________________________________________________________________________________________________ 17 Guest Access _____________________________________________________________________________________________________________ 18 Speed Check ______________________________________________________________________________________________________________ 19 Parental Controls _______________________________________________________________________________________________________ 20 Device Prioritization __________________________________________________________________________________________________ 21 Notifications ______________________________________________________________________________________________________________ 22 Router Administration _______________________________________________________________________________________________ 23 Advanced Settings ____________________________________________________________________________________________________ 25 Internet Settings ______________________________________________________________________________________________________________________ 25 Port Settings ___________________________________________________________________________________________________________________________ 26 Wi-Fi MAC Filters _____________________________________________________________________________________________________________________ 27 My Account ________________________________________________________________________________________________________________ 28 Feedback ___________________________________________________________________________________________________________________ 29 Help ____________________________________________________________________________________________________________________________ 30 Connect Directly To Your Router ________________________________________________________________________ 31 Router password ______________________________________________________________________________________________________________________ 32 How to factory reset your router ________________________________________________________________________ 33 Specifications ______________________________________________________________________________________________________ 34 Linksys MR9000 ________________________________________________________________________________________________________ 34 Environmental ____________________________________________________________________________________________________________ 34Product Overview Front/topThe light on the top of your router gives you information about the router’s operation. Normal OperationBlue (blinking) Starting upWait for the router to finish starting up.Purple Ready for setupOpen the Linksys app to complete setup.Purple (blinking) Setup in progressFollow instructions in the app.Blue Connected to internetRouter is online, everything is good.Red No internetNot online, check with your ISP for service interruptions. Red (blinking) Not plugged in to modemMake sure your router is firmly connected to the modem. WPSBlue (blinking) Pairing startedYellow (blinking) Pairing unsuccessfulBlue Pairing successfulUSB 3.0 port (1)— Connect and share USB drives on your network or on the internet.Note—This port is for future capability and might require a firmware update when available. USB activity indicator (2)— Lights indicate data transfer to/from external devices.Ethernet ports (3)—Connect ethernet cables to these blue gigabit (10/100/1000) ports, and to wired devices on your network.Note—For best performance, use CAT5e or higher rated cables on the Ethernet ports. Internet port (4)—Connect an ethernet cable to the yellow gigabit (10/100/1000) port, and to a broadband internet cable/DSL or fiber modem. If you are using this router as a child node in a mesh Wi-Fi system, you can use this port to create a wired connection to another node.Note—For best performance, use CAT5e or higher rated cable on the Internet port.Reset button (5)— To factory reset your router, press and hold while the light on top of the router blinks red. Do not release the button until the light goes out and then turns bright red.Power port (6)—Connect the included AC power adapter.Power switch (7)—Press | (on) to turn on the router.Wi-Fi Protected Setup™ button—Press to connect to WPS-enabled network devices.HelpWhere to find more help•/support/MR9000•Linksys app help (launch the app and click Help in the main navigation menu)Note—Licenses and notices for third party software used in this product may be viewed on /en-us/license. Please contact /en-us/gplcodecenter for questions or GPL source code requests.Set UpIMPORTANT—Your MR9000 can be set up as a primary node or a child in a whole home mesh Wi-Fi system. A primary node must be connected with an ethernet cable to your modem or modem-router. Secondary nodes can be connected wirelessly or with ethernet cables.If you are adding the router to an existing Velop whole home mesh Wi-Fi system, factory reset all nodes and add them to the system after your MR9000 is set up and working.Download the Linksys app. You need this app to set up your router.Go to the app store for your device and search for Linksys.What you’ll needInstall the app, open it and follow the instructions.Note—The app works with iOS 9.0 and later, and Android 4.1 and later.During setup you will create a Linksys Smart Wi-Fi account so you can use the app to view or change your router system settings from anywhere you have an internet connection.Among the many things you can do with Linksys Smart Wi-Fi and the Linksys app: •Change your Wi-Fi name and password•Set up guest access•Connect devices to Wi-Fi with WPS•Block internet with parental controls•Test your internet connection speedNote—We’ll send you a verification email. While connected to your home network, click the link in the email to link your router with your account.Other than plugging in the power and the ethernet cable, the app-based setup process does the work for you. Once connected, use the app to personalize your Wi-Fi by giving it a name and password. You also can give your router and any child nodes names based on where they are so you can identify them in the rare case where things need attention.If you want to add child nodes to create a whole home mesh Wi-Fi system, set them up within range of a working node. Only the parent node has to be wired to the modem or modem-router. Don’t worry, the app will help you place your nodes.Print this page, then record your Wi-Fi and account settings in the table as a reference. Store your notes in a safe place.Your Linksys app login email address and password can also be used to log in at . You can view or manage your Wi-Fi in an internet browser.Linksys Whole Home Wi-Fi System Settings Using your Linksys app, you can view or change Wi-Fi system settings including security and parental controls. You can access settings from anywhere in the world if you have an internet connection. You can also access your system directly from your home network, even if you don’t have an internet connection.Log in to the Linksys app1.Open the Linksys app.2.Enter the email address you used when creating your account.3.Enter your account password.4.Tap Log in.DashboardDashboard is a snapshot of your Wi-Fi. See how many devices are connected to your system. From Dashboard you can share your Wi-Fi password and turn on guest access. Dashboard also shows you if any devices have parental controls on them or have been prioritized for Wi-Fi access.DevicesView and change details for all devices connected to your Wi-Fi. You can view devices on your main network and your guest network, or display information about each device.To view or change device detailsFrom the Devices screen you can edit device names and change the device icons. You also can prioritize devices, set parental controls, and see Wi-Fi details. Tap on any device to see details.Wi-Fi SettingsView or change your Wi-Fi name and password and connect devices using Wi-Fi Protected Setup™.Advanced SettingsAdvanced users can change the default security type and Wi-Fi mode. Do not change these unless you have a lot of experience with Wi-Fi networks. Channel Finder will search for the least populated Wi-Fi channels in your area to ensure you get the best performance from your system. If you have more than one node in your system, Channel Finder will find the best channel for each node.Connect a Device with WPSWi-Fi Protected Setup allows you to easily connect wireless devices to your Wi-Fi without manually entering security settings.Guest AccessUse your Guest Access to allow guests to get online while restricting their access to other resources connected to your Wi-Fi. Send the password by text message or email.Speed CheckRun a speed check to make sure you are getting the speeds you pay for. Speed check also helps in Device Prioritization because results determine how Wi-Fi is distributed to the prioritized devices.•Download speed is the rate at which internet content is transferred to your router.•Upload speed is the rate at which you can upload content to the internet.Note—Internet connection speeds are determined by a variety of factors, including ISP account type, local and worldwide internet traffic, and number of devices in your home that are sharing the internet connection.Parental ControlsParental controls allow you to control when your kids are online and what they’re doing there. Pause internet to specific devices, or block specific websites.Device PrioritizationChoose up to three devices for priority usage of your internet connection. Those devices – wiredand/or wireless – always will have the best access when connected. Your router runs a speed check to determine how to best distribute Wi-Fi to prioritized devices. Other devices will share the leftover capacity. Prioritized devices appear on Dashboard.NotificationsIf you have more than one node, the app can notify you when secondary nodes in your system go offline. Secondary nodes are any that are not wired to your modem. You have to turn on notifications in your mobile device settings to allow the app to notify you.Router AdministrationUse the Router Administration screen to change the router password and hint, and check various identifiers (model number, serial number, and IP details) for your router.Opt in to automatically report crashes to Linksys and contribute to improving the Wi-Fi experience. You also can manually report specific issues to Linksys.The following information will be sent with your description of the issue:•App version •Login Type (cloud: show email address associated,local: display "Router admin")•Device model •WAN Connection type (display Wi-Fi or ethernet) •Device OS version •Time: date (mo/day/year, time, time zone)Advanced SettingsInternet SettingsYou can choose how your router connects to the internet. The default is Automatic Configuration – DHCP. Other connection types depend on your internet service provider or how you plan to use your router.Advanced users can use Additional Settings to clone MAC addresses and set MTU (maximum transmission unit).Port SettingsPort forwarding—for a single port, multiple ports or a range of ports—sends traffic inbound on a specific port or ports to a specific device or port on your Wi-Fi. In port range triggering, your router watches outgoing data for specific port numbers. Your router remembers the IP address of the device that requests the data so that when the requested data returns, it is routed back to the proper device.Wi-Fi MAC FiltersEvery network device has a unique 12-digit MAC (media access control) address. You can create a list of MAC addresses, and then allow or deny those devices on your Wi-Fi.My AccountChange your Linksys app password and opt in to receive the latest news and deals from Linksys.FeedbackHere’s your chance to tell us what you think. Rate the app at your app store, send us a suggestion, or report an issue that’s keeping you from a great experience.HelpHaving trouble with the app? Just need a little more information about a feature? Tap Help for an explanation.Connect Directly To Your RouterIf you are not connected to the internet you still can access your router settings. Connect to your Wi-Fi name, launch the Linksys app and tap Log in with Router Password toward the bottom of the screen. You will not be able to access your Linksys Wi-Fi account when not online.Router passwordWe created a secure admin password during setup. To change it, tap Router Administration and Change Router Password and Hint.To keep your router secure, we'll send you an email if someone changes the router password.How to factory reset your routerYou should never need to factory reset your MR9000 router—a very disruptive process. A factory reset restores your router to the state it was when you took it out of its box, requiring you to go through the setup process again. All settings you have customized in setup and since – things such as Wi-Fi name, passwords, security type – will be erased. All wireless devices will disconnect from your Wi-Fi.To factory reset :•With your router connected to power and turned on, press and hold the Reset button on the back panel. The light on top of the router will blink red. Do not release the button until the light goes out and then turns bright red.Specifications Linksys MR9000Model Name Model Number Switch Port Speed Radio Frequency # of Antennas PortsButtonsLightsSecurity Features Security Key Bits Tri-Band Mesh Wi-Fi 5 Router, AC3000MR9000Gigabit2.4 GHz and 5 GHz (x2)4 external adjustable antennasUSB 3.0 (for future expansion), Ethernet (1-4), Internet, PowerPower, Reset, WPSTop panel: One, multicolor light for power and status Back panel: USB, Ethernet (1-4), InternetWPA2-PersonalUp to 128-bit encryptionEnvironmentalDimensions 213.7mm x 161.8mm x 54.8mm (without antennas)Unit Weight 593 gPower 12V/2ACertifications FCC, IC, CE, Wi-Fi (IEEE 802.11a/b/g/n/ac)Operating Temp. 32° to 104° F (0 to 40° C)Storage Temp. -4° to 140° F (-20 to 60° C)Operating Humidity 10% to 80% relative humidity, non-condensingStorage Humidity 5% to 90% non-condensingNotes:For regulatory, warranty, and safety information, go to /support/MR9000. Specifications are subject to change without notice.Maximum performance derived from IEEE Standard 802.11 specifications. Actual performance can vary, including lower wireless network capacity, data throughput rate, range and coverage. Performance depends on many factors, conditions and variables, including distance from the access point, volume of network traffic, building materials and construction, operating system used, mix of wireless products used, interference and other adverse conditions.Visit /support/MR9000 for award-winning technical support.BELKIN, LINKSYS and many product names and logos are trademarks of the Belkin group of companies. Third-party trademarks mentioned are the property of their respective owners.© 2019 Belkin International, Inc. and/or its affiliates. All rights reserved.。

max3485esa中文资料

General Description The MAX3483, MAX3485, MAX3486, MAX3488,MAX3490, and MAX3491 are 3.3V , low-power transceivers forRS-485 and RS-422 communication. Each part containsone driver and one receiver. The MAX3483 and MAX3488feature slew-rate-limited drivers that minimize EMI andreduce reflections caused by improperly terminatedcables, allowing error-free data transmission at data ratesup to 250kbps. The partially slew-rate-limited MAX3486transmits up to 2.5Mbps. The MAX3485, MAX3490, andMAX3491 transmit at up to 10Mbps.Drivers are short-circuit current-limited and are protectedagainst excessive power dissipation by thermal shutdowncircuitry that places the driver outputs into a high-imped-ance state. The receiver input has a fail-safe feature thatguarantees a logic-high output if both inputs are opencircuit.The MAX3488, MAX3490, and MAX3491 feature full-duplex communication, while the MAX3483, MAX3485, andMAX3486 are designed for half-duplex communication.Applications ●Low-Power RS-485/RS-422 Transceivers ●Telecommunications ●Transceivers for EMI-Sensitive Applications ●Industrial-Control Local Area NetworksFeatures●Operate from a Single 3.3V Supply—No Charge Pump!●Interoperable with +5V Logic ●8ns Max Skew (MAX3485/MAX3490/MAX3491)●Slew-Rate Limited for Errorless Data Transmission (MAX3483/MAX3488)●2nA Low-Current Shutdown Mode (MAX3483/MAX3485/MAX3486/MAX3491)●-7V to +12V Common-Mode Input Voltage Range ●Allows up to 32 Transceivers on the Bus ●Full-Duplex and Half-Duplex Versions Available ●Industry Standard 75176 Pinout (MAX3483/MAX3485/MAX3486)●Current-Limiting and Thermal Shutdown for Driver Overload Protection 19-0333; Rev 1; 5/19Ordering Information continued at end of data sheet.*Contact factory for for dice specifications.PARTTEMP . RANGE PIN-PACKAGE MAX3483CPA0°C to +70°C 8 Plastic DIP MAX3483CSA0°C to +70°C 8 SO MAX3483C/D0°C to +70°C Dice*MAX3483EPA-40°C to +85°C 8 Plastic DIP MAX3483ESA-40°C to +85°C 8 SO MAX3485CPA0°C to +70°C 8 Plastic DIP MAX3485CSA0°C to +70°C 8 SO MAX3485C/D0°C to +70°C Dice*MAX3485EPA-40°C to +85°C 8 Plastic DIP MAX3485ESA -40°C to +85°C 8 SO PARTNUMBERGUARANTEED DATA RATE (Mbps)SUPPLY VOLTAGE (V)HALF/FULL DUPLEX SLEW-RATE LIMITED DRIVER/RECEIVER ENABLE SHUTDOWN CURRENT (nA)PIN COUNT MAX34830.25 3.0 to 3.6Half Yes Yes 28MAX348510Half No No 28MAX34862.5Half Yes Yes 28MAX34880.25Half Yes Yes —8MAX349010Half No No —8MAX349110Half No Yes 214MAX3483/MAX3485/MAX3486/MAX3488/MAX3490/MAX3491Selection TableOrdering Information找电子元器件上宇航军工Figure 1. MAX3483/MAX3485/MAX3486 Pin Configuration and Typical Operating Circuit Figure 2. MAX3488/MAX3490 Pin Configuration and Typical Operating Circuit Figure 3. MAX3491 Pin Configuration and Typical Operating CircuitMAX3486/MAX3488/MAX3490/MAX3491True RS-485/RS-422 TransceiversFigure 22. MAX3488/MAX3490/MAX3491 Full-Duplex RS-485 NetworkFigure 23. Line Repeater for MAX3488/MAX3490/MAX3491MAX3486/MAX3488/MAX3490/MAX3491True RS-485/RS-422 Transceivers。

MAX13089EEPD中文资料

General DescriptionThe MAX13080E–MAX13089E +5.0V, ±15kV ESD-protect-ed, RS-485/RS-422 transceivers feature one driver and one receiver. These devices include fail-safe circuitry,guaranteeing a logic-high receiver output when receiver inputs are open or shorted. The receiver outputs a logic-high if all transmitters on a terminated bus are disabled (high impedance). The MAX13080E–MAX13089E include a hot-swap capability to eliminate false transitions on the bus during power-up or hot insertion.The MAX13080E/MAX13081E/MAX13082E feature reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to 250kbps. The MAX13083E/MAX13084E/MAX13085E also feature slew-rate-limited drivers but allow transmit speeds up to 500kbps. The MAX13086E/MAX13087E/MAX13088E driver slew rates are not limited, making transmit speeds up to 16Mbps possible. The MAX13089E slew rate is pin selectable for 250kbps,500kbps, and 16Mbps.The MAX13082E/MAX13085E/MAX13088E are intended for half-duplex communications, and the MAX13080E/MAX13081E/MAX13083E/MAX13084E/MAX13086E/MAX13087E are intended for full-duplex communica-tions. The MAX13089E is selectable for half-duplex or full-duplex operation. It also features independently programmable receiver and transmitter output phase through separate pins.The MAX13080E–MAX13089E transceivers draw 1.2mA of supply current when unloaded or when fully loaded with the drivers disabled. All devices have a 1/8-unit load receiver input impedance, allowing up to 256transceivers on the bus.The MAX13080E/MAX13083E/MAX13086E/MAX13089E are available in 14-pin PDIP and 14-pin SO packages.The MAX13081E/MAX13082E/MAX13084E/MAX13085E/MAX13087E/MAX13088E are available in 8-pin PDIP and 8-pin SO packages. The devices operate over the com-mercial, extended, and automotive temperature ranges.ApplicationsUtility Meters Lighting Systems Industrial Control Telecom Security Systems Instrumentation ProfibusFeatures♦+5.0V Operation♦Extended ESD Protection for RS-485/RS-422 I/O Pins±15kV Human Body Model ♦True Fail-Safe Receiver While Maintaining EIA/TIA-485 Compatibility ♦Hot-Swap Input Structures on DE and RE ♦Enhanced Slew-Rate Limiting Facilitates Error-Free Data Transmission(MAX13080E–MAX13085E/MAX13089E)♦Low-Current Shutdown Mode (Except MAX13081E/MAX13084E/MAX13087E)♦Pin-Selectable Full-/Half-Duplex Operation (MAX13089E)♦Phase Controls to Correct for Twisted-Pair Reversal (MAX13089E)♦Allow Up to 256 Transceivers on the Bus ♦Available in Industry-Standard 8-Pin SO PackageMAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers________________________________________________________________Maxim Integrated Products 1Ordering Information19-3590; Rev 1; 4/05For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at .Selector Guide, Pin Configurations, and Typical Operating Circuits appear at end of data sheet.Ordering Information continued at end of data sheet.M A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSDC ELECTRICAL CHARACTERISTICS(V CC = +5.0V ±10%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V and T A = +25°C.) (Note 1)Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.(All Voltages Referenced to GND)Supply Voltage (V CC ).............................................................+6V Control Input Voltage (RE , DE, SLR,H/F , TXP, RXP)......................................................-0.3V to +6V Driver Input Voltage (DI)...........................................-0.3V to +6V Driver Output Voltage (Z, Y, A, B).............................-8V to +13V Receiver Input Voltage (A, B)....................................-8V to +13V Receiver Input VoltageFull Duplex (A, B)..................................................-8V to +13V Receiver Output Voltage (RO)....................-0.3V to (V CC + 0.3V)Driver Output Current.....................................................±250mAContinuous Power Dissipation (T A = +70°C)8-Pin SO (derate 5.88mW/°C above +70°C).................471mW 8-Pin Plastic DIP (derate 9.09mW/°C above +70°C).....727mW 14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW 14-Pin Plastic DIP (derate 10.0mW/°C above +70°C)...800mW Operating Temperature RangesMAX1308_EC_ _.................................................0°C to +75°C MAX1308_EE_ _..............................................-40°C to +85°C MAX1308_EA_ _............................................-40°C to +125°C Junction Temperature......................................................+150°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10s).................................+300°CMAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers_______________________________________________________________________________________3DC ELECTRICAL CHARACTERISTICS (continued)(V CC = +5.0V ±10%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V and T A = +25°C.) (Note 1)M A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 4_______________________________________________________________________________________DRIVER SWITCHING CHARACTERISTICSMAX13080E/MAX13081E/MAX13082E/MAX13089E WITH SRL = UNCONNECTED (250kbps)(V CC = +5.0V ±10%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V and T A = +25°C.)RECEIVER SWITCHING CHARACTERISTICSMAX13080E/MAX13081E/MAX13082E/MAX13089E WITH SRL = UNCONNECTED (250kbps)(V CC = +5.0V ±10%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V and T A = +25°C.)MAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers_______________________________________________________________________________________5DRIVER SWITCHING CHARACTERISTICSMAX13083E/MAX13084E/MAX13085E/MAX13089E WITH SRL = V CC (500kbps)(V CC = +5.0V ±10%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V and T A = +25°C.)RECEIVER SWITCHING CHARACTERISTICSMAX13083E/MAX13084E/MAX13085E/MAX13089E WITH SRL = V CC (500kbps)(V CC = +5.0V ±10%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V and T A = +25°C.)M A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 6_______________________________________________________________________________________DRIVER SWITCHING CHARACTERISTICSMAX13086E/MAX13087E/MAX13088E/MAX13089E WITH SRL = GND (16Mbps)(V CC = +5.0V ±10%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V and T A = +25°C.)RECEIVER SWITCHING CHARACTERISTICSMAX13086E/MAX13087E/MAX13088E/MAX13089E WITH SRL = GND (16Mbps)(V CC = +5.0V ±10%, T A = T MIN to T MAX , unless otherwise noted. Typical values are at V CC = +5.0V and T A = +25°C.)Note 2:∆V OD and ∆V OC are the changes in V OD and V OC , respectively, when the DI input changes state.Note 3:The short-circuit output current applies to peak current just prior to foldback current limiting. The short-circuit foldback outputcurrent applies during current limiting to allow a recovery from bus contention.MAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers_______________________________________________________________________________________70.800.901.501.101.001.201.301.401.60-40-10520-253550958011065125SUPPLY CURRENT vs. TEMPERATURETEMPERATURE (°C)S U P P L Y C U R R E N T (m A )0201040305060021345OUTPUT CURRENTvs. RECEIVER OUTPUT-HIGH VOLTAGEM A X 13080E -89E t o c 02OUTPUT HIGH VOLTAGE (V)O U T P U T C U R R E N T (m A )20104030605070021345OUTPUT CURRENTvs. RECEIVER OUTPUT-LOW VOLTAGEM A X 13080E -89E t o c 03OUTPUT LOW VOLTAGE (V)O U T P U T C U R R E N T (m A )4.04.44.24.84.65.25.05.4RECEIVER OUTPUT-HIGH VOLTAGEvs. TEMPERATURETEMPERATURE (°C)O U T P U T H I G H V O L T A G E (V )-40-10520-2535509580110651250.10.70.30.20.40.50.60.8RECEIVER OUTPUT-LOW VOLTAGEvs. TEMPERATURETEMPERATURE (°C)O U T P U T L O W V O L T A G E (V )-40-10520-25355095801106512502040608010012014016012345DRIVER DIFFERENTIAL OUTPUT CURRENT vs. DIFFERENTIAL OUTPUT VOLTAGEDIFFERENTIAL OUTPUT VOLTAGE (V)D I F FE R E N T I A L O U T P U T C U R R E N T (m A )2.02.82.43.63.24.44.04.8DRIVER DIFFERENTIAL OUTPUT VOLTAGE vs. TEMPERATURED I F FE R E N T I A L O U T P U T V O L T A G E (V )-40-10520-253550958011065125TEMPERATURE (°C)40201008060120140180160200-7-5-4-6-3-2-1012354OUTPUT CURRENT vs. TRANSMITTEROUTPUT-HIGH VOLTAGEOUTPUT HIGH VOLTAGE (V)O U T P U T C U R R E N T (m A )60402080100120140160180200042681012OUTPUT CURRENT vs. TRANSMITTEROUTPUT-LOW VOLTAGEOUTPUT-LOW VOLTAGE (V)O U T P U T C U R R E N T (m A )Typical Operating Characteristics(V CC = +5.0V, T A = +25°C, unless otherwise noted.)M A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 8_______________________________________________________________________________________21543679810SHUTDOWN CURRENT vs. TEMPERATUREM A X 13080E -89E t o c 10S H U T D O W N C U R R E N T (µA )-40-10520-253550958011065125TEMPERATURE (°C)600800700100090011001200DRIVER PROPAGATION DELAY vs. TEMPERATURE (250kbps)D R I VE R P R O P A G A T I O N D E L A Y (n s )-40-10520-253550958011065125TEMPERATURE (°C)300400350500450550600DRIVER PROPAGATION DELAY vs. TEMPERATURE (500kbps)D R I VE R P R O P A G A T I O N D E L A Y (n s )-40-10520-253550958011065125TEMPERATURE (°C)1070302040506080DRIVER PROPAGATION DELAY vs. TEMPERATURE (16Mbps)D R I VE R P R O P A G A T I O N D E L A Y (n s )-40-10520-253550958011065125TEMPERATURE (°C)40201008060120140160180RECEIVER PROPAGATION DELAYvs. TEMPERATURE (250kpbs AND 500kbps)R E C E I V E R P R O P A G A T I O N D E L A Y (n s )-40-10520-253550958011065125TEMPERATURE (°C)40201008060120140160180RECEIVER PROPAGATION DELAYvs. TEMPERATURE (16Mbps)R EC E I V E R P R O P A G AT I O N D E L A Y (n s )-40-10520-253550958011065125TEMPERATURE (°C)2µs/div DRIVER PROPAGATION DELAY (250kbps)DI 2V/divV Y - V Z 5V/divR L = 100Ω200ns/divRECEIVER PROPAGATION DELAY(250kbps AND 500kbps)V A - V B 5V/divRO 2V/divTypical Operating Characteristics (continued)(V CC = +5.0V, T A = +25°C, unless otherwise noted.)MAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers_______________________________________________________________________________________9Test Circuits and Waveforms400ns/divDRIVER PROPAGATION DELAY (500kbps)DI 2V/divR L = 100ΩV Y - V Z 5V/div10ns/div DRIVER PROPAGATION DELAY (16Mbps)DI 2V/divR L = 100ΩV Y 2V/divV Z 2V/div40ns/divRECEIVER PROPAGATION DELAY (16Mbps)V B 2V/divR L = 100ΩRO 2V/divV A 2V/divTypical Operating Characteristics (continued)(V CC = +5.0V, T A = +25°C, unless otherwise noted.)Figure 2. Driver Timing Test CircuitM A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 10______________________________________________________________________________________Test Circuits and Waveforms (continued)Figure 4. Driver Enable and Disable Times (t DHZ , t DZH , t DZH(SHDN))DZL DLZ DLZ(SHDN)MAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversTest Circuits and Waveforms (continued)Figure 6. Receiver Propagation Delay Test CircuitM A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversMAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversMAX13080E/MAX13083E/MAX13086EMAX13081E/MAX13084E/MAX13086E/MAX13087EFunction TablesM A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers MAX13082E/MAX13085E/MAX13088EFunction Tables (continued)MAX13089EDetailed Description The MAX13080E–MAX13089E high-speed transceivers for RS-485/RS-422 communication contain one driver and one receiver. These devices feature fail-safe circuit-ry, which guarantees a logic-high receiver output when the receiver inputs are open or shorted, or when they are connected to a terminated transmission line with all dri-vers disabled (see the Fail-Safe section). The MAX13080E/MAX13082E/MAX13083E/MAX13085E/ MAX13086E/MAX13088E/MAX13089E also feature a hot-swap capability allowing line insertion without erroneous data transfer (see the Hot Swap Capability section). The MAX13080E/MAX13081E/MAX13082E feature reduced slew-rate drivers that minimize EMI and reduce reflec-tions caused by improperly terminated cables, allowing error-free data transmission up to 250kbps. The MAX13083E/MAX13084E/MAX13085E also offer slew-rate limits allowing transmit speeds up to 500kbps. The MAX13086E/MAX13087E/MAX13088Es’ driver slew rates are not limited, making transmit speeds up to 16Mbps possible. The MAX13089E’s slew rate is selectable between 250kbps, 500kbps, and 16Mbps by driving a selector pin with a three-state driver.The MAX13082E/MAX13085E/MAX13088E are half-duplex transceivers, while the MAX13080E/MAX13081E/ MAX13083E/MAX13084E/MAX13086E/MAX13087E are full-duplex transceivers. The MAX13089E is selectable between half- and full-duplex communication by driving a selector pin (H/F) high or low, respectively.All devices operate from a single +5.0V supply. Drivers are output short-circuit current limited. Thermal-shutdown circuitry protects drivers against excessive power dissi-pation. When activated, the thermal-shutdown circuitry places the driver outputs into a high-impedance state.Receiver Input Filtering The receivers of the MAX13080E–MAX13085E, and the MAX13089E when operating in 250kbps or 500kbps mode, incorporate input filtering in addition to input hysteresis. This filtering enhances noise immunity with differential signals that have very slow rise and fall times. Receiver propagation delay increases by 25% due to this filtering.Fail-Safe The MAX13080E family guarantees a logic-high receiver output when the receiver inputs are shorted or open, or when they are connected to a terminated transmission line with all drivers disabled. This is done by setting the receiver input threshold between -50mV and -200mV. If the differential receiver input voltage (A - B) is greater than or equal to -50mV, RO is logic-high. If (A - B) is less than or equal to -200mV, RO is logic-low. In the case of a terminated bus with all transmitters disabled, the receiv-er’s differential input voltage is pulled to 0V by the termi-nation. With the receiver thresholds of the MAX13080E family, this results in a logic-high with a 50mV minimumnoise margin. Unlike previous fail-safe devices, the-50mV to -200mV threshold complies with the ±200mVEIA/TIA-485 standard.Hot-Swap Capability (Except MAX13081E/MAX13084E/MAX13087E)Hot-Swap InputsWhen circuit boards are inserted into a hot or powered backplane, differential disturbances to the data buscan lead to data errors. Upon initial circuit board inser-tion, the data communication processor undergoes itsown power-up sequence. During this period, the processor’s logic-output drivers are high impedanceand are unable to drive the DE and RE inputs of these devices to a defined logic level. Leakage currents up to±10µA from the high-impedance state of the proces-sor’s logic drivers could cause standard CMOS enableinputs of a transceiver to drift to an incorrect logic level. Additionally, parasitic circuit board capacitance couldcause coupling of V CC or GND to the enable inputs. Without the hot-swap capability, these factors could improperly enable the transceiver’s driver or receiver.When V CC rises, an internal pulldown circuit holds DElow and RE high. After the initial power-up sequence,the pulldown circuit becomes transparent, resetting thehot-swap tolerable input.Hot-Swap Input CircuitryThe enable inputs feature hot-swap capability. At theinput there are two NMOS devices, M1 and M2 (Figure 9). When V CC ramps from zero, an internal 7µstimer turns on M2 and sets the SR latch, which alsoturns on M1. Transistors M2, a 1.5mA current sink, andM1, a 500µA current sink, pull DE to GND through a5kΩresistor. M2 is designed to pull DE to the disabledstate against an external parasitic capacitance up to100pF that can drive DE high. After 7µs, the timer deactivates M2 while M1 remains on, holding DE low against three-state leakages that can drive DE high. M1 remains on until an external source overcomes the required input current. At this time, the SR latch resetsand M1 turns off. When M1 turns off, DE reverts to a standard, high-impedance CMOS input. Whenever V CCdrops below 1V, the hot-swap input is reset.For RE there is a complementary circuit employing two PMOS devices pulling RE to V CC. MAX13080E–MAX13089E+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversM A X 13080E –M A X 13089EMAX13089E ProgrammingThe MAX13089E has several programmable operating modes. Transmitter rise and fall times are programma-ble, resulting in maximum data rates of 250kbps,500kbps, and 16Mbps. To select the desired data rate,drive SRL to one of three possible states by using a three-state driver: V CC , GND, or unconnected. F or 250kbps operation, set the three-state device in high-impedance mode or leave SRL unconnected. F or 500kbps operation, drive SRL high or connect it to V CC .F or 16Mbps operation, drive SRL low or connect it to GND. SRL can be changed during operation without interrupting data communications.Occasionally, twisted-pair lines are connected backward from normal orientation. The MAX13089E has two pins that invert the phase of the driver and the receiver to cor-rect this problem. F or normal operation, drive TXP and RXP low, connect them to ground, or leave them uncon-nected (internal pulldown). To invert the driver phase,drive TXP high or connect it to V CC . To invert the receiver phase, drive RXP high or connect it to V CC . Note that the receiver threshold is positive when RXP is high.The MAX13089E can operate in full- or half-duplex mode. Drive H/F low, leave it unconnected (internal pulldown), or connect it to GND for full-duplex opera-tion. Drive H/F high for half-duplex operation. In full-duplex mode, the pin configuration of the driver and receiver is the same as that of a MAX13080E. In half-duplex mode, the receiver inputs are internally connect-ed to the driver outputs through a resistor-divider. This effectively changes the function of the device’s outputs.Y becomes the noninverting driver output and receiver input, Z becomes the inverting driver output and receiver input. In half-duplex mode, A and B are still connected to ground through an internal resistor-divider but they are not internally connected to the receiver.±15kV ESD ProtectionAs with all Maxim devices, ESD-protection structures are incorporated on all pins to protect against electro-static discharges encountered during handling and assembly. The driver outputs and receiver inputs of the MAX13080E family of devices have extra protection against static electricity. Maxim’s engineers have devel-oped state-of-the-art structures to protect these pins against ESD of ±15kV without damage. The ESD struc-tures withstand high ESD in all states: normal operation,shutdown, and powered down. After an ESD event, the MAX13080E–MAX13089E keep working without latchup or damage.ESD protection can be tested in various ways. The transmitter outputs and receiver inputs of the MAX13080E–MAX13089E are characterized for protec-tion to the following limits:•±15kV using the Human Body Model•±6kV using the Contact Discharge method specified in IEC 61000-4-2ESD Test ConditionsESD performance depends on a variety of conditions.Contact Maxim for a reliability report that documents test setup, test methodology, and test results.Human Body ModelFigure 10a shows the Human Body Model, and Figure 10b shows the current waveform it generates when dis-charged into a low impedance. This model consists of a 100pF capacitor charged to the ESD voltage of interest,which is then discharged into the test device through a 1.5k Ωresistor.IEC 61000-4-2The IEC 61000-4-2 standard covers ESD testing and performance of finished equipment. However, it does not specifically refer to integrated circuits. The MAX13080E family of devices helps you design equip-ment to meet IEC 61000-4-2, without the need for addi-tional ESD-protection components.+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversThe major difference between tests done using the Human Body Model and IEC 61000-4-2 is higher peak current in IEC 61000-4-2 because series resistance is lower in the IEC 61000-4-2 model. Hence, the ESD with-stand voltage measured to IEC 61000-4-2 is generally lower than that measured using the Human Body Model. Figure 10c shows the IEC 61000-4-2 model, and Figure 10d shows the current waveform for IEC 61000-4-2 ESD Contact Discharge test.Machine Model The machine model for ESD tests all pins using a 200pF storage capacitor and zero discharge resis-tance. The objective is to emulate the stress caused when I/O pins are contacted by handling equipment during test and assembly. Of course, all pins require this protection, not just RS-485 inputs and outputs.Applications Information256 Transceivers on the BusThe standard RS-485 receiver input impedance is 12kΩ(1-unit load), and the standard driver can drive up to 32-unit loads. The MAX13080E family of transceivers has a1/8-unit load receiver input impedance (96kΩ), allowingup to 256 transceivers to be connected in parallel on one communication line. Any combination of these devices,as well as other RS-485 transceivers with a total of 32-unit loads or fewer, can be connected to the line.Reduced EMI and ReflectionsThe MAX13080E/MAX13081E/MAX13082E feature reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to250kbps. The MAX13083E/MAX13084E/MAX13085Eoffer higher driver output slew-rate limits, allowing transmit speeds up to 500kbps. The MAX13089E withSRL = V CC or unconnected are slew-rate limited. WithSRL unconnected, the MAX13089E error-free data transmission is up to 250kbps. With SRL connected toV CC,the data transmit speeds up to 500kbps. MAX13080E–MAX13089E+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversM A X 13080E –M A X 13089ELow-Power Shutdown Mode (Except MAX13081E/MAX13084E/MAX13087E)Low-power shutdown mode is initiated by bringing both RE high and DE low. In shutdown, the devices typically draw only 2.8µA of supply current.RE and DE can be driven simultaneously; the devices are guaranteed not to enter shutdown if RE is high and DE is low for less than 50ns. If the inputs are in this state for at least 700ns, the devices are guaranteed to enter shutdown.Enable times t ZH and t ZL (see the Switching Characteristics section) assume the devices were not in a low-power shutdown state. Enable times t ZH(SHDN)and t ZL(SHDN)assume the devices were in shutdown state. It takes drivers and receivers longer to become enabled from low-power shutdown mode (t ZH(SHDN), t ZL(SHDN))than from driver/receiver-disable mode (t ZH , t ZL ).Driver Output ProtectionTwo mechanisms prevent excessive output current and power dissipation caused by faults or by bus contention.The first, a foldback current limit on the output stage,provides immediate protection against short circuits over the whole common-mode voltage range (see the Typical Operating Characteristics ). The second, a thermal-shut-down circuit, forces the driver outputs into a high-imped-ance state if the die temperature exceeds +175°C (typ).Line LengthThe RS-485/RS-422 standard covers line lengths up to 4000ft. F or line lengths greater than 4000ft, use the repeater application shown in Figure 11.Typical ApplicationsThe MAX13082E/MAX13085E/MAX13088E/MAX13089E transceivers are designed for bidirectional data commu-nications on multipoint bus transmission lines. F igures 12 and 13 show typical network applications circuits. To minimize reflections, terminate the line at both ends in its characteristic impedance, and keep stub lengths off the main line as short as possible. The slew-rate-lim-ited MAX13082E/MAX13085E and the two modes of the MAX13089E are more tolerant of imperfect termination.Chip InformationTRANSISTOR COUNT: 1228PROCESS: BiCMOS+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversFigure 11. Line Repeater for MAX13080E/MAX13081E/MAX13083E/MAX13084E/MAX13086E/MAX13087E/MAX13089E in Full-Duplex Mode+5.0V, ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversMAX13080E–MAX13089EM A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 TransceiversPin Configurations and Typical Operating CircuitsMAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers______________________________________________________________________________________21Pin Configurations and Typical Operating Circuits (continued)M A X 13080E –M A X 13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers 22______________________________________________________________________________________Ordering Information (continued)MAX13080E–MAX13089E+5.0V , ±15kV ESD-Protected, Fail-Safe, Hot-Swap, RS-485/RS-422 Transceivers______________________________________________________________________________________23Package Information (continued)(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)。

卡特C3.3B多地形加载机（257D 277D 287D）技术数据及特性说明书

257D/277D/287DMulti Terrain LoadersCat® C3.3B DIT (Turbo) Engine 257D 277D 287DGross Power (SAE J1995) 55.4 kW 74.3 hp 55.4 kW 74.3 hp 55.4 kW 74.3 hp WeightsOperating Weight 3651 kg 8,048 lb 4215 kg 9,293 lb 4504 kg 9,929 lb Operating SpecificationsRated Operating Capacity at 50% Tipping Load 1270 kg 2,800 lb 1492 kg 3,290 lb 1814 kg 4,000 lbIndustry Leading CabOne piece, modular design provides a premium sealed and pressurized cab for a cleaner and quieter operating environment with excellent all around visibility.Superior PowerHigh performance power train provides maximum performance with features such as Electronic Torque Management system, two speed andan industry exclusive hand/foot throttle with decel pedal capability.Powerful HydraulicsHigh flow hydraulic system available for applications that demand maximum hydraulic work tool performance.Suspended UndercarriageStandard suspended undercarriage system provides superior traction, flotation, speed and very low ground pressure to work in a wide range of applications and underfoot conditions. Outstanding PerformanceCat Intelligent Leveling (ILEV) system enables industry leading features such as electronicself level, return-to-dig and work tool positioner. VersatilityDo more with one machine with the broad range of Cat Work Tools, built to get the most out of your machine.ContentsOperator Station (4)Power Train (6)Lift Linkages (6)Rubber Track Undercarriage (7)Performance (7)Attachments (8)Serviceability (9)Customer Support (9)Specifi cations (10)Standard Equipment (14)Mandatory Equipment (15)Optional Equipment (15)Experience the difference of a Cat Multi Terrain Loader. Spacious operator station features ergonomic joystick controls, ample leg room and an available high back, heated, air ride seat to keep you comfortable all day long. Built for low ground pressure with outstanding performance, comfort and versatility, the Cat D Series Multi Terrain Loaders help you get more done to improve your bottom line.Operator StationSpacious working environment for all day comfort.Base DisplayThe standard control monitor provides a single-code securityto help prevent theft and unwanted operation.Best Seat on the Job SiteHigh back, heated, air ride seat available in both cloth and vinyl. 4Superior ComfortThe Cat D Series sets a new standard in operator comfort. The wide, spacious interior and uncluttered floor helps you work comfortably and productivelyall day long. Features include:• One piece, modular design provides a premium sealed and pressurized cab for cleaner and quieter working environment• High back, heated, air ride seat with seat-mounted joystick controls for added comfort (option)• Clear sight lines provide excellent visibility• Air conditioner and heater for greater comfort in all climates (option)• Ample leg room• Selectable Pattern Control which allows the operator to select the control pattern they are most familiar with for greater productivity (option) Advanced Display PanelThe optional Advanced Display lets you customize your machine performance to your needs by offering the ultimate in operator control features and functionality. This easy to read 127 mm (5 in) LCD display puts machine information at your fingertips. It provides on screen adjustments to working parameters and preferences such as implement response adjustment,drive response adjustment, creep setting, ride control activation speed,top speed limit setting, language, background color and gauge display style.All parameters can be customized and retained for each individual operator’s code. It also provides:• Security system to prevent unauthorized machine usage• Capability to program up to 50 operator codes to store and recall each operator’s preferences and working parameters, allowing the machineto be tailored to experience level and application• Integrated rearview camera for additional job site visibility (option)5Vertical Lift LinkageRadial Lift LinkageLift LinkagesChoice of lift designs.Two types of lifting arrangement areavailable – vertical lift and radial lift –to meet your specific application needs.Vertical LiftThe 257D and 287D feature the vertical liftdesign which provides extended reachand lift height for material handling orquick and easy truck loading.Radial LiftThe 277D features the radial lift designwhich delivers excellent diggingperformance and superior mid-lift reach.Power TrainAggressive performance.Cat EngineThe electronically controlled Cat C3.3B engine provides high horsepower andtorque. This rugged, reliable engine meets U.S. EPA Tier 4 Final/EU Stage IIIBemission standards.Cat Intelligent Leveling (ILEV) SystemThe exclusive Cat Intelligent Leveling System takes machine performanceto a new level and provides industry leading features such as:• Electronic snubbing that automatically cushions the descent of the lift arms,slowing the downward motion just before the arms reach their stops• Return-to-dig which allows the operator to pre-set the digging angle of the bucketand then automatically lowers the lift arms and recalls the bucket angle• Work Tool Positioner which allows the angle of the work tool (bucket, box rake,cold planer, forks, trencher, etc.) to be pre-set and then automatically recalledif the machine is repositioned, increasing productivityElectronic ThrottleNew electronic dial-type throttle lets you set precise RPM setting. When the dial isin the high-idle position, the foot throttle functions as a decelerator pedal. This givesyou greater control, allowing you to quickly adjust the travel speed during precisemaneuvers or to regulate engine speed when using hydro-mechanical work tools.A new throttle-smoothing feature monitors the accelerator pedal’s movement underthe operator’s foot when traveling over rough terrain and adjusts to provide asteadier, more even travel speed.6Rubber Track UndercarriageUnique undercarriage delivers low ground pressure, superior suspension.Cat Multi Terrain Loaders feature a rugged, durable rubber track that is lightweight and pliable, yet reinforced with high tensile strength cords. The undercarriage provides low ground pressure and minimal ground disturbance allowing the machine to operate over sensitive surfaces and in soft underfoot conditions. Elevated, internal positive track drive keep drive components away from ground debris. Heavy duty torsion axles suspend the MTL undercarriage and can move independently relative to the machine and each other. These axles absorb most of the shock to the undercarriage, machine and operator, especially over rough terrain. This means smooth travel, even at high speeds, as well as better load retention and greater productivity. Components are replaceable as individual wear items, reducing owning and operating costs.Dual Level Suspension Undercarriage (277D/287D Only)In addition to the torsion axle suspension system, the standard dual level suspension undercarriage provides oscillating roller wheel assemblies. These wheel assemblies independently pivot to provide maximum track on the ground, better load retention, improved operatorcomfort and one of the smoothest rides in the industry. Performance Solutions for a wide range of applications.High Performance Hydraulic System Maximum power and reliability are built into the Cat hydraulic system to help you get the job done faster. The hydraulic system features outstanding lift and breakout forces. The available continuous demand fan provides improved fuel efficiencyand increased horsepower.High Flow Hydraulic SystemsHigh Flow (257D) and High Flow XPS (277D/287D) hydraulic systems are available for applications that demand maximum work tool performance.Two SpeedIncrease your productivity with Two Speed (standard on the 277D/287D; optional on the 257D).Ride ControlThe optional Speed Sensitive Ride Control system delivers a smoother ride on uneven terrain for superior comfort, higher speed operation and better material retention.7AttachmentsDo more jobs with one machine using Cat Work Tools.The Right Tool for the JobDesigned and built for optimum performance and durability, Cat Work Tools deliver high productivity in a variety of applications to maximize versatility: • Augers• Backhoes• Blades (angle, dozer)• Buckets (general purpose, high capacity, dirt, utility, light material,multi purpose, industrial grapple, utility grapple)• Brooms (angle, pickup, utility)• Brushcutters• Cold Planers• Forks (pallet, industrial grapple, utility grapple, utility)• Hydraulic Hammers• Landscape Tillers• Landscape Rakes• Material Handling Arm• Mulchers• Power Box Rakes• Sectional Snow Push• Shear• Snow Blowers• Stump Grinders• Trenchers• Vibratory Compactors• Wheel SawsQuick CouplersWork tools can be changed quickly and easily with the Cat Multi Terrain Loader’s quick coupler system. The standard quick coupler features manual engagement and disengagement of work tools using two high leverage handles. The optional electric quick coupler allows the operator to quickly change tools without leaving the cab.8ServiceabilityEasy maintenance helps keep yourmachine working.Minimize Your DowntimeConvenient service features make maintenance easy,reducing your downtime:• Unmatched ground level access to all routineservice points• Wide opening rear door for easy access to both sidesof the engine• Electric priming pump with automatic air bleed for thefuel system eliminates the need to pre-fill filters with fuel,reducing the risk of contaminants• Cat Product Link™ system provides remote reporting ofmachine location and operating system parametersCustomer SupportUnmatched support makes the difference.Renowned Dealer SupportFrom helping you choose the right machine toknowledgeable ongoing support, Cat dealersprovide the best in sales and service.• Preventive maintenance programs andguaranteed maintenance contracts• Best-in-class parts availability• Operator training to help boost your profits• Genuine Cat Remanufactured parts9257D/277D/287D Multi Terrain Loaders SpecificationsEngine Operating Specifications*Engine Model Cat C3.3B DIT (turbo) Rated Operating Capacity at 35% Tipping LoadGross Power (SAE J1995) 257D 889 kg 1,960 lb 257D 55.4 kW 74.3 hp 277D 1045 kg 2,303 lb 277D/287D 55.4 kW 74.3 hp 287D 1270 kg 2,800 lb Net Power (SAE 1349) Rated Operating Capacity at 50% Tipping Load257D 54.6 kW 73.2 hp 257D 1270 kg 2,800 lb 277D/287D 54.4 kW 72.9 hp 277D 1492 kg 3,290 lb Net Power (ISO 9249) 287D 1814 kg 4,000 lb 257D 55.1 kW 73.9 hp Rated Operating Capacity with Optional Counterweight277D/287D 54.9 kW 73.7 hp 257D 1361 kg 3,000 lb Displacement 3.3 L 203 in3 277D 1505 kg 3,540 lb Stroke 120 mm 4.7 in 287D 1927 kg 4,250 lb Bore 94 mm 3.7 in Tipping LoadWeights*Operating Weight257D 277D 287D 3651 kg4215 kg4504 kg8,048 lb9,293 lb9,929 lbPower Train257D 2540 kg 5,600 lb 277D 2985 kg 6,580 lb 287D 3629 kg 8,000 lb Breakout Force, Tilt Cylinder257D 2284 kg 5,035 lb 277D 3304 kg 7,285 lb 287D 3307 kg 7,291 lb Ground Contact AreaTravel Speed (Forward or Reverse) 257D 1.14 m2 1,770 in2 One Speed 277D 1.65 m2 2,561 in2 257D 10.1 km/h 6.3 mph 287D 1.65 m2 2,561 in2 277D/287D 8.3 km/h 5.2 mph Ground PressureTwo Speed 257D 31.3 kPa 4.5 psi 257D (optional) 16.0 km/h 9.9 mph 277D 25.0 kPa 3.6 psi 277D/287D (standard) 12.9 km/h 8.0 mph 287D 26.7 kPa 3.9 psi10257D/277D/287D Multi Terrain Loaders SpecificationsHydraulic System – 257DHydraulic Flow – StandardLoader Hydraulic Pressure 23 000 kPa 3,335 psiLoader Hydraulic Flow 76 L/min 20 gal/minHydraulic Power (calculated) 29 kW 39 hpHydraulic Flow – High FlowMaximum Loader Hydraulic 23 000 kPa 3,335 psiPressureMaximum Loader Hydraulic Flow 112 L/min 30 gal/minHydraulic Power (calculated) 43 kW 58 hpHydraulic System – 277D and 287DHydraulic Flow – StandardLoader Hydraulic Pressure 23 000 kPa 3,335 psiLoader Hydraulic Flow 86 L/min 23 gal/minHydraulic Power (calculated)Hydraulic Flow – High Flow XPS33 kW 44 hpMaximum Loader Hydraulic 28 000 kPa 4,061 psiPressureMaximum Loader Hydraulic Flow 121 L/min 32 gal/minHydraulic Power (calculated) 57 kW 76 hpCabROPS ISO 3471:2008FOPS ISO 3449:2005 Level IFOPS Level II ISO 3449:2005 Level IIService Refill CapacitiesCooling System Engine Crankcase Fuel Tank 14 L11 L3.7 gal3.0 gal257D277D/287D Hydraulic System 257D277D/287D Hydraulic Tank 105 L94 L50 L52 L39 L27.7 gal24.8 gal13.2 gal13.7 gal10.3 galNoise LevelInside Cab**257D 83 dB(A)277D, 287D 81 dB(A)Outside Cab***All Models 103 dB(A)• Cab and Rollover Protective Structures (ROPS) are standardin North America and Europe.** T he declared dynamic operator sound pressure levels perISO 6396:2008. The measurements were conducted with the cabdoors and windows closed and at 70% of the maximum enginecooling fan speed. The sound level may vary at different enginecooling fan speeds.*** T he labeled sound power level for the CE marked confi gurationswhen measured according to the test procedure and conditionsspecified in 2000/14/EC.Air Conditioning SystemThe air conditioning system on the 257D contains the fl uorinatedgreenhouse gas refrigerant R134a (Global Warming Potential = 1430).The system contains 0.81 kg of refrigerant which has a CO2 equivalentof 1.158 metric tonnes.The air conditioning system on the 277D and 287D contains thefluorinated greenhouse gas refrigerant R134a (Global WarmingPotential = 1430). The system contains 1.0 kg of refrigerant whichhas a CO2 equivalent of 1.430 metric tonnes.11257D/287D Multi Terrain Loaders SpecificationsDimensions*All dimensions are approximate.1 Length of Track on Ground2 Overall Length of Track3 Length without Bucket4 Length with Bucket on Ground5 Height to Top of Cab6 Maximum Overall Height7 Bucket Pin Height at Maximum Lift 8 Bucket Pin Height at Carry Position 9 Reach at Maximum Lift and Dump 10 Clearance at Maximum Lift and Dump 11 Ground Clearance 12 Departure Angle 13 Maximum Dump Angle 14 Vehicle Width15 Turning Radius from Center – Machine Rear 16 Turning Radius from Center – Coupler 17 Turning Radius from Center – Bucket18 Maximum Reach with Arms Parallel to Ground 19 Rack Back Angle at Maximum Height 20 Bucket Pin Reach at Maximum Lift1499 mm 1898 mm 2767 mm 3486 mm 2129 mm 3932 mm 3091 mm 215 mm 637 mm 2300 mm 242 mm1676 mm 1555 mm 1399 mm 2191 mm 1334 mm367 mm257D35° 52°87°59.0 in 74.7 in 108.9 in 137.3 in 83.8 in 154.8 in 121.7 in 8.5 in 25.1 in 90.5 in 9.5 in66.0 in 61.2 in 55.1 in 86.3 in 52.5 in14.5 in1807 mm 2285 mm 2995 mm 3714 mm 2113 mm 4015 mm 3178 mm 190 mm 783 mm 2387 mm 226 mm1981 mm 1712 mm 1494 mm 2337 mm 1292 mm391 mm287D38° 51°84°71.1 in 90.0 in 117.9 in 146.2 in 83.2 in 158.1 in 125.1 in 7.5 in 30.8 in 94.0 in 8.9 in78.0 in 67.4 in 58.8 in 92.0 in 50.9 in 15.4 in*Operating Weight, Operating Specifications and Dimensions for the 257D and 287D all based on 75 kg (165 lb) operator, all fluids, one speed (257D)/two speed (287D), OROPS, 1676 mm (66 in) dirt bucket, standard flow hydraulics, mechanical suspension seat, no optional counterweights and manual quick coupler (unless otherwise noted).12277D Multi Terrain Loaders Specifications Dimensions*All dimensions are approximate.277D1 Length of Track on Ground 1807 mm 71.1 in2 Overall Length of Track 2285 mm 90.0 in3 Length without Bucket 2995 mm 117.9 in4 Length with Bucket on Ground 3714 mm 146.2 in5 Height to Top of Cab 2113 mm 83.2 in6 Maximum Overall Height 4052 mm 159.5 in7 Bucket Pin Height at Maximum Lift 3174 mm 125.0 in8 Bucket Pin Height at Carry Position 202 mm 8.0 in9 Reach at Maximum Lift and Dump 598 mm 23.5 in10 Clearance at Maximum Lift and Dump 2488 mm 97.9 in11 Ground Clearance 226 mm 8.9 in12 Departure Angle 38°13 Maximum Dump Angle 39°14 Vehicle Width 1981 mm 78.3 in15 Turning Radius from Center – Machine Rear 1713 mm 67.4 in16 Turning Radius from Center – Coupler 1493 mm 58.8 in17 Turning Radius from Center – Bucket 2336 mm 92.0 in18 Maximum Reach with Arms Parallel to Ground 1395 mm 54.9 in19 Rack Back Angle at Maximum Height 94°*Operating Weight, Operating Specifications and Dimensions for the 277D all based on 75 kg (165 lb) operator, all fluids, two speed, OROPS, 1676 mm (66 in) dirt bucket, standard flow hydraulics, mechanical suspension seat, no optional counterweights and manual quick coupler (unless otherwise noted).13257D/277D/287D Standard EquipmentStandard EquipmentStandard equipment may vary. Consult your Cat dealer for details.ELECTRICAL• 12 volt Electrical System• 80 ampere Alternator• Ignition Key Start/Stop Switch• Lights: Gauge Backlighting, Two Rear Tail Lights, Two Rear Halogen Working Lights, Two Adjustable Front Halogen Lights, Dome Light• Backup Alarm• Heavy Duty Battery, 880 CCA OPERATOR ENVIRONMENT• Gauges: Fuel Level, Hour Meter• Operator Warning System Indicators:Air Filter Restriction, Alternator Output, Armrest Raised/Operator Out of Seat, Engine Coolant Temperature, EngineOil Pressure, Glow Plug Activation, Hydraulic Filter Restriction, Hydraulic Oil Temperature, Park Brake Engaged, Engine Emission System• Adjustable Vinyl Seat• Fold In Ergonomic Contoured Armrest • Control Interlock System, when operator leaves seat or armrest raised: Hydraulic System Disables, Hydrostatic Transmission Disables, Parking Brake Engages• ROPS Cab, Open, Tilt Up• FOPS, Level I • Top and Rear Windows• Floor Mat• Interior Rearview Mirror• 12 volt Electric Socket• Horn• Hand (Dial) Throttle, Electronic• Adjustable Joystick Controls• Anti-theft Security System withsix-button Keypad• Storage Compartment with NettingPOWER TRAIN• Cat C3.3B, Turbo Diesel Engine, MeetingU.S. EPA Tier 4 Final (EU Stage IIIB)Emission Standards• Air Cleaner, Dual Element, Radial Seal• S∙O∙S SM Sampling Valve, Hydraulic Oil• Filters, Cartridge-type, Hydraulic• Filters, Cartridge-type, Fuel andWater Separator• Radiator/Hydraulic Oil Cooler(side-by-side)• Spring Applied, Hydraulically ReleasedParking Brakes• Hydrostatic TransmissionOTHER• Engine Enclosure, Lockable• Extended Life Antifreeze, –36° C (–33° F)• Machine Tie Down Points (6)• Support, Lift Arm• Hydraulic Oil Level Sight Gauge• Radiator Coolant Level Sight Gauge• Radiator, Expansion Bottle• Cat ToughGuard™ Hose• Auxiliary, Hydraulics, Continuous Flow• Heavy Duty, Flat Faced Quick Disconnectswith Integrated Pressure Release• Split D-Ring to Route Work Tool HosesAlong Side of Left Lift Arm• Electrical Outlet, Beacon• Belly Pan Cleanout• Variable Speed Demand Fan(standard on 277D/287D; optional on 257D.Included with EU preparation package)• Product Link PL240, Cellular14257D/277D/287D Mandatory EquipmentMandatory EquipmentMandatory equipment may vary. Consult your Cat dealer for details.• Hydraulics, Standard Flow or High Flow (257D)/High Flow XPS (277D/287D)• Quick Coupler, Manual or Powered• Seat Belt, 50 mm (2 in) or 75 mm (3 in) • Steel Imbed Rubber Track:– 257D: 320 mm (12.6 in) or 400 mm (15.7 in) – 277D/287D: 400 mm (15.7 in) or450 mm (17.7 in)• Dual Flange Front Idler/Single Flange Rear Idler or Triple Flange Front/Rear Idlers COMFORT PACKAGES• Open ROPS (C0): Static Seat (No Foot Throttle, Headliner, Heater or Door)• Open ROPS (C1): Foot Throttle, Headliner, Cup Holder, and choice of Seat (Mechanical Suspension or High Back, Heated, Air Ride Seat) (No Heater or Door) • Enclosed ROPS with Heater (C2):Foot Throttle, Headliner, Heater and Defroster, Side Windows, Cup Holder, Radio Ready, choice of Seat (Mechanical Suspension or High Back, Heated, Air Ride Seat) and Door (Glass or Polycarbonate) • Enclosed ROPS with A/C (C3):C2 + Air ConditionerOptional Equipment PERFORMANCE PACKAGES FOR THE 257D PERFORMANCE PACKAGES FOR THE 287D• Performance Package H1: Standard Flow • Performance Package H1: Standard Flow Hydraulics (No Self Level) Hydraulics (No Self Level)• Performance Package H2: Standard Flow • Performance Package H2: Standard Flow, Hydraulics, Single Direction Electronic Dual Direction Electronic Self LevelSelf Level (Raise), Electronic Snubbing (Raise and Lower), Electronic Snubbing (Raise and Lower) (Raise and Lower)• Performance Package H3: High Flow • Performance Package H3: High Flow Hydraulics, Single Direction Electronic XPS, Dual Direction Electronic Self Level Self Level (Raise), Electronic Snubbing (Raise and Lower), Electronic Snubbing (Raise and Lower) (Raise and Lower)PERFORMANCE PACKAGES FOR THE 277D• Performance Package H1: Standard FlowHydraulics (No Self Level)• Performance Package H3: High FlowXPS, Dual Direction Electronic Self Level(Raise and Lower), Electronic Snubbing(Raise and Lower)• Performance Package H4: Standard FlowHydraulics (No Self Level), Return toDig/Work Tool Positioner, ElectronicSnubbing (Raise and Lower)257D/277D/287D Optional EquipmentOptional equipment may vary. Consult your Cat dealer for details.• Hand-Foot Style Controls • Product Link PL641, Cellular • Work Tool Return to Dig and Work• External Counterweights • Ride Control Tool Positioner• Variable Speed Demand Fan (257D) • Advanced Display: Full Color, 127 mm • Bluetooth Radio with Microphone• Beacon, Rotating (5 in) LCD screen, Advanced Multi-operator (AM/FM/Weather Band Receiver withSecurity System, On-screen Adjustments USB and Auxiliary Input Jack)• Engine Block Heater – 120Vfor Implement Response, Hystat Response,• Oil, Hydraulic, Cold Operationand Creep Control; Rearview• Paint, CustomCamera Ready• Heavy Duty Battery, 1,000 CCA• Advanced Display: Rearview(277D/287D only)Camera Included15For more complete information on Cat products, dealer services, and industry solutions, visit us on the web at © 2017 CaterpillarAll rights reservedMaterials and specifications are subject to change without notice. Featured machines in photos may include additional equipment. See your Cat dealer for available options.CAT, CATERPILLAR, , their respective logos, “Caterpillar Yellow” and the “Power Edge” trade dress, as well as corporate and product identity used herein, are trademarks of Caterpillar and may AEHQ7229-02 (03-2017) Replaces AEHQ7229-01not be used without permission.。

MAX809TTRG资料

MAX809 Series,MAX810 SeriesVery Low Supply Current3−Pin MicroprocessorReset MonitorsThe MAX809 and MAX810 are cost−effective system supervisor circuits designed to monitor V CC in digital systems and provide a reset signal to the host processor when necessary. No external components are required.The reset output is driven active within 10 m sec of V CC falling through the reset voltage threshold. Reset is maintained active for a timeout period which is trimmed by the factory after V CC rises above the reset threshold. The MAX810 has an active−high RESET output while the MAX809 has an active−low RESET output. Both devices are available in SOT−23 and SC−70 packages.The MAX809/810 are optimized to reject fast transient glitches on the V CC line. Low supply current of 0.5 m A (V CC= 3.2 V) makes these devices suitable for battery powered applications.Features•Precision V CC Monitor for 1.5 V, 1.8 V, 2.5 V, 3.0 V, 3.3 V, and 5.0 V Supplies•Precision Monitoring V oltages from 1.2 V to 4.9 V Availablein 100 mV Steps•Four Guaranteed Minimum Power−On Reset Pulse Width Available (1 ms, 20 ms, 100 ms, and 140 ms)•RESET Output Guaranteed to V CC = 1.0 V.•Low Supply Current•Compatible with Hot Plug Applications•V CC Transient Immunity•No External Components•Wide Operating Temperature: −40°C to 105°C•Pb−Free Packages are AvailableTypical Applications•Computers•Embedded Systems•Battery Powered Equipment•Critical Microprocessor Power Supply MonitoringV CCFigure 1. Typical Application DiagramSee general marking information in the device marking section on page 8 of this data sheet.DEVICE MARKING INFORMATIONSee detailed ordering and shipping information in the package dimensions section on page 8 of this data sheet.ORDERING INFORMATIONPIN DESCRIPTIONPin No.Symbol Description1GND Ground2RESET (MAX809)RESET output remains low while V CC is below the reset voltage threshold, and for a reset timeoutperiod after V CC rises above reset threshold2RESET (MAX810)RESET output remains high while V CC is below the reset voltage threshold, and for a reset timeoutperiod after V CC rises above reset threshold3V CC Supply Voltage (Typ)ABSOLUTE MAXIMUM RATINGSRating Symbol Value Unit Power Supply Voltage (V CC to GND)V CC−0.3 to 6.0V RESET Output Voltage (CMOS)−0.3 to (V CC + 0.3)V Input Current, V CC20mA Output Current, RESET20mAdV/dt (V CC)100V/m secThermal Resistance, Junction−to−Air (Note 1)SOT−23SC−70R q JA301314°C/WOperating Junction Temperature Range T J−40 to +105°C Storage Temperature Range T stg−65 to +150°C Lead Temperature (Soldering, 10 Seconds)T sol+260°C ESD ProtectionHuman Body Model (HBM): Following Specification JESD22−A114 Machine Model (MM): Following Specification JESD22−A1152000200VLatchup Current Maximum Rating: Following Specification JESD78 Class IIPositiveNegative I Latchup200200mAStresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect device reliability.1.This based on a 35x35x1.6mm FR4 PCB with 10mm2 of 1 oz copper traces under natural convention conditions and a single componentcharacterization.2.The maximum package power dissipation limit must not be exceeded.P D+T J(max)*T Aq JAwith T J(max) = 150°CELECTRICAL CHARACTERISTICS T A = −40°C to +105°C unless otherwise noted. Typical values are at T A = +25°C. (Note 3) Characteristic Symbol Min Typ Max Unit V CC RangeT A = 0°C to +70°CT A = −40°C to +105°C 1.01.2−−5.55.5VSupply CurrentV CC = 3.3 VT A = −40°C to +85°CT A = 85°C to +105°C V CC = 5.5 VT A = −40°C to +85°CT A = 85°C to +105°C I CC−−−−0.5−0.8−1.22.01.82.5m AReset Threshold (V in Decreasing) (Note 4)V TH V MAX809SN490T A = +25°CT A = −40°C to +85°C T A = +85°C to +105°C 4.834.784.664.9−−4.975.025.14MAX8xxLTR, MAX8xxSQ463T A = +25°CT A = −40°C to +85°C T A = +85°C to +105°C 4.564.504.404.63−−4.704.754.86MAX809HTRT A = +25°CT A = −40°C to +85°C T A = +85°C to +105°C 4.484.434.324.55 4.624.674.78MAX8xxMTR, MAX8xxSQ438T A = +25°CT A = −40°C to +85°C T A = +85°C to +105°C 4.314.274.164.38 4.454.494.60MAX809JTR, MAX8xxSQ400T A = +25°CT A = −40°C to +85°C T A = +85°C to +105°C 3.943.903.804.00−−4.064.104.20MAX8xxTTR, MAX809SQ308T A = +25°CT A = −40°C to +85°C T A = +85°C to +105°C 3.043.002.923.08−−3.113.163.24MAX8xxSTR, MAX8xxSQ293T A = +25°CT A = −40°C to +85°C T A = +85°C to +105°C 2.892.852.782.93−−2.963.003.08MAX8xxRTR, MAX8xxSQ263T A = +25°CT A = −40°C to +85°C T A = +85°C to +105°C 2.592.562.492.63−−2.662.702.77MAX809SN232, MAX809SQ232T A = +25°CT A = −40°C to +85°C T A = +85°C to +105°C 2.282.252.212.32−−2.352.382.45MAX809SN160T A = +25°CT A = −40°C to +85°C T A = +85°C to +105°C 1.581.561.521.60−−1.621.641.68MAX809SN120, MAX8xxSQ120T A = +25°CT A = −40°C to +85°C T A = +85°C to +105°C 1.181.171.141.20−−1.221.231.263.Production testing done at T A = 25°C, over temperature limits guaranteed by design.4.Contact your ON Semiconductor sales representative for other threshold voltage options.ELECTRICAL CHARACTERISTICS(continued) T A = −40°C to +105°C unless otherwise noted. Typical values are atT A = +25°C. (Note 5)Characteristic Symbol Min Typ Max Unit Detector Voltage Threshold Temperature Coefficient−30−ppm/°C V CC to Reset Delay V CC = V TH to (V TH − 100 mV)−10−m secReset Active TimeOut Period (Note 6) MAX8xxSN(Q)293D1MAX8xxSN(Q)293D2MAX8xxSN(Q)293D3MAX8xxSN(Q)293t RP1.020100140−−−−3.366330460msecRESET Output Voltage Low (No Load) (MAX809)V CC = V TH − 0.2 V1.6 V v V TH v2.0 V, I SINK = 0.5 mA2.1 V v V TH v 4.0 V, I SINK = 1.2 mA4.1 V v V TH v 4.9 V, I SINK = 3.2 mAV OL−−0.3VRESET Output Voltage High (No Load) (MAX809)V CC = V TH + 0.2 V1.6 V v V TH v2.4 V, I SOURCE = 200 m A2.5 V v V TH v 4.9 V, I SOURCE = 500 m AV OH0.8 V CC−−VRESET Output Voltage High (No Load) (MAX810)V CC = V TH + 0.2 V1.6 V v V TH v2.4 V, I SOURCE = 200 m A2.5 V v V TH v 4.9 V, I SOURCE = 500 m AV OH0.8 V CC−−VRESET Output Voltage Low (No Load) (MAX810)V CC = V TH − 0.2 V1.6 V v V TH v2.0 V, I SINK = 0.5 mA2.1 V v V TH v 4.0 V, I SINK = 1.2 mA4.1 V v V TH v 4.9 V, I SINK = 3.2 mAV OL−−0.3V5.Production testing done at T A = 25°C, over temperature limits guaranteed by design.6.Contact your ON Semiconductor sales representative for timeout options availability for other threshold voltage options.TYPICAL OPERATING CHARACTERISTICS0.50.40.30.20.10S U P P L Y C U R R E N T (m A )0.60.250.150.0500.35S U P P L Y C U R R E N T (m A )−50−2502550TEMPERATURE (°C)S U P P L Y C U R R E N T (m A )75100−50−2502550TEMPERATURE (°C)100Figure 6. Supply Current vs. Temperature(No Load, MAX809)Figure 7. Supply Current vs. Temperature (NoLoad, MAX810)750.100.200.30TYPICAL OPERATING CHARACTERISTICS252015105.00−50−25255075TEMPERATURE (°C)O U T P U T V O L T A G E V C C (m V )30100250−50−252575125TEMPERATURE (°C)125P O W E R −D O W N R E S E T D E L A Y (m s e c )125−50−2502550TEMPERATURE (°C)N O R M A L I Z E D P O W E R −U P R E S E T T I M E O U T0.70.80.91.21.375100Figure 10. Power−Down Reset Delay vs.Temperature and Overdrive (V TH = 1.2 V)Figure 11. Power−Down Reset Delay vs.Temperature and Overdrive (V TH = 4.9 V)Figure 12. Normalized Power−Up Reset vs.Temperature10050751.01.110050APPLICATIONS INFORMATIONV CC Transient RejectionThe MAX809 provides accurate V CC monitoring and reset timing during power−up, power−down, and brownout/sag conditions, and rejects negative−going transients (glitches) on the power supply line. Figure 13shows the maximum transient duration vs. maximum negative excursion (overdrive) for glitch rejection. Any combination of duration and overdrive which lies under the curve will not generate a reset signal. Combinations above the curve are detected as a brownout or power−down.Typically, transient that goes 100 mV below the reset threshold and lasts 5.0 m s or less will not cause a reset pulse.Transient immunity can be improved by adding a capacitor in close proximity to the V CC pin of the MAX809.Figure 13. Maximum Transient Duration vs.Overdrive for Glitch Rejection at 25°CV CC1011060M A X I M U M T R A N S I E N T D U R A T I O N (m s e c )RESET COMPARATOR OVERDRIVE (mV)410160210260310360RESET Signal Integrity During Power−DownThe MAX809 RESET output is valid to V CC = 1.0 V .Below this voltage the output becomes an “open circuit” and does not sink current. This means CMOS logic inputs to the Microprocessor will be floating at an undetermined voltage.Most digital systems are completely shutdown well above this voltage. However, in situations where RESET must bemaintained valid to V CC = 0 V , a pull−down resistor must be connected from RESET to ground to discharge stray capacitances and hold the output low (Figure 14). This resistor value, though not critical, should be chosen such that it does not appreciably load RESET under normal operation (100 k W will be suitable for most applications).Figure 14. Ensuring RESET Valid to V CC = 0 VProcessors With Bidirectional I/O PinsSome Microprocessor’s have bidirectional reset pins.Depending on the current drive capability of the processor pin, an indeterminate logic level may result if there is a logic conflict. This can be avoided by adding a 4.7 k W resistor in series with the output of the MAX809 (Figure 15). If there are other components in the system which require a reset signal, they should be buffered so as not to load the reset line.If the other components are required to follow the reset I/O of the Microprocessor, the buffer should be connected as shown with the solid line.Figure 15. Interfacing to Bidirectional Reset I/OBUFFERED RESETORDERING, MARKING AND THRESHOLD INFORMATIONPart Number V TH*(V)Timeout*(ms)Description Marking Package Shipping†MAX809SN160T1 1.60140−460Push−Pull RESET SAA SOT23−33000 / Tape & ReelMAX809SN160T1G 1.60140−460SAA SOT23−3(Pb−Free)MAX809SN232T1 2.32140−460SQP SOT23−3MAX809SN232T1G 2.32140−460SQP SOT23−3(Pb−Free)MAX809RTR 2.63140−460SPS SOT23−3MAX809RTRG 2.63140−460SPS SOT23−3(Pb−Free)MAX809STR 2.93140−460SPT SOT23−3MAX809STRG 2.93140−460SPT SOT23−3(Pb−Free)MAX809TTR 3.08140−460SPU SOT23−3MAX809TTRG 3.08140−460SPU SOT23−3(Pb−Free)MAX809JTR 4.00140−460SPR SOT23−3MAX809JTRG 4.00140−460SPR SOT23−3(Pb−Free)MAX809MTR 4.38140−460SPV SOT23−3MAX809MTRG 4.38140−460SPV SOT23−3(Pb−Free)MAX809HTR 4.55140−460SBD SOT23−3MAX809HTRG 4.55140−460SBD SOT23−3(Pb−Free)MAX809LTR 4.63140−460SPW SOT23−3MAX809LTRG 4.63140−460SPW SOT23−3(Pb−Free)MAX809SN490T1 4.90140−460SBH SOT23−3MAX809SN490T1G 4.90140−460SBH SOT23−3(Pb−Free)MAX809SN120T1G 1.20140−460SSO SOT23−3(Pb−Free)MAX809SN293D1T1G 2.931−3.3SSP SOT23−3(Pb−Free)MAX809SN293D2T1G 2.9320−66SSQ SOT23−3(Pb−Free)MAX809SN293D3T1G 2.93100−330SSR SOT23−3(Pb−Free)MAX809SQ120T1G 1.20140−460ZD SC70−3(Pb−Free)MAX809SQ232T1G 2.32140−460ZE SC70−3(Pb−Free)MAX809SQ263T1G 2.63140−460ZF SC70−3(Pb−Free)MAX809SQ293T1G 2.93140−460ZG SC70−3(Pb−Free)MAX809SQ308T1G 3.08140−460ZH SC70−3(Pb−Free)MAX809SQ400T1G 4.00140−460SZ SC70−3(Pb−Free)MAX809SQ438T1G 4.38140−460ZI SC70−3(Pb−Free)MAX809SQ463T1G 4.63140−460ZJ SC70−3(Pb−Free)MAX809SQ293D1T1G 2.931−3.3ZK SC70−3(Pb−Free)MAX809SQ293D2T1G 2.9320−66ZL SC70−3(Pb−Free)MAX809SQ293D3T1G 2.93100−330ZM SC70−3(Pb−Free)†For information on tape and reel specifications,including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.*Contact your ON Semiconductor sales representative for other threshold voltage options.ORDERING, MARKING AND THRESHOLD INFORMATIONPart Number V TH*(V)Timeout*(ms)Description Marking Package Shipping†MAX810RTR 2.63140−460Push−Pull RESET SPX SOT23−33000 / Tape & ReelMAX810RTRG 2.63140−460SPX SOT23−3(Pb−Free)MAX810STR 2.93140−460SPY SOT23−3MAX810STRG 2.93140−460SPY SOT23−3(Pb−Free)MAX810TTR 3.08140−460SPZ SOT23−3MAX810TTRG 3.08140−460SPZ SOT23−3(Pb−Free)MAX810MTR 4.38140−460SQA SOT23−3MAX810MTRG 4.38140−460SQA SOT23−3(Pb−Free)MAX810LTR 4.63140−460SQB SOT23−3MAX810LTRG 4.63140−460SQB SOT23−3(Pb−Free)MAX810SN120T1G 1.20140−460SSS SOT23−3(Pb−Free)MAX810SN293D1T1G 2.931−3.3SST SOT23−3(Pb−Free)MAX810SN293D2T1G 2.9320−66SSU SOT23−3(Pb−Free)MAX810SN293D3T1G 2.93100−330SSZ SOT23−3(Pb−Free)MAX810SQ120T1G 1.20140−460ZN SC70−3(Pb−Free)MAX810SQ263T1G 2.63140−460ZO SC70−3(Pb−Free)MAX810SQ293T1G 2.93140−460ZP SC70−3(Pb−Free)MAX810SQ438T1G 4.38140−460ZQ SC70−3(Pb−Free)MAX810SQ463T1G 4.63140−460ZR SC70−3(Pb−Free)MAX810SQ293D1T1G 2.931−3.3ZS SC70−3(Pb−Free)MAX810SQ293D2T1G 2.9320−66ZT SC70−3(Pb−Free)MAX810SQ293D3T1G 2.93100−330ZU SC70−3(Pb−Free)†For information on tape and reel specifications,including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD8011/D.*Contact your ON Semiconductor sales representative for other threshold voltage options.PACKAGE DIMENSIONSSOT−23 (TO236)CASE 318−08ISSUE AN*For additional information on our Pb−Free strategy and solderingdetails, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.SOLDERING FOOTPRINT*ǒmm inchesǓSCALE 10:1NOTES:1.DIMENSIONING AND TOLERANCING PER ANSI Y14.5M, 1982.2.CONTROLLING DIMENSION: INCH.3.MAXIMUM LEAD THICKNESS INCLUDES LEAD FINISH THICKNESS. MINIMUM LEADTHICKNESS IS THE MINIMUM THICKNESS OF BASE MATERIAL.4.318−01 THRU −07 AND −09 OBSOLETE, NEW STANDARD 318−08.VIEW CDIM A MIN NOM MAX MINMILLIMETERS0.89 1.00 1.110.035INCHES A10.010.060.100.001b 0.370.440.500.015c 0.090.130.180.003D 2.80 2.90 3.040.110E 1.20 1.30 1.400.047e 1.78 1.90 2.040.070L 0.100.200.300.0040.0400.0440.0020.0040.0180.0200.0050.0070.1140.1200.0510.0550.0750.0810.0080.012NOM MAX L1 2.102.40 2.640.0830.0940.104H E0.350.540.690.0140.0210.029MAX809 Series, MAX810 SeriesPACKAGE DIMENSIONSSC−70 (SOT−323)CASE 419−04ISSUE Mǒmm inchesǓSCALE 10:1*For additional information on our Pb−Free strategy and solderingdetails, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D.ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages.“Typical” parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, affiliates,and distributors harmless against all claims, costs, damages, and expenses, and reasonable attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer. This literature is subject to all applicable copyright laws and is not for resale in any manner.PUBLICATION ORDERING INFORMATION元器件交易网。

MAX9814中文资料ver2.0

```````````````````````````````````গၤNBY:925ဵጙ౒ࢅ߅۾Ă঱ອᒠ൱యज़हࡍ໭ǈดᒙᔈࣅᐐፄ఼ᒜ)BHD*ጲૺࢅᐅဉ൱యज़ມᒙăক໭ୈૹ߅ࢅᐅဉ༄ᒙहࡍ໭Ăభܤᐐፄहࡍ໭)WHB*Ăၒ߲हࡍ໭Ă൱యज़ມኹखည໭ጲૺBHD఼ᒜ࢟വăࢅᐅဉ༄ᒙहࡍ໭ࡼᐐፄৼࢾᆐ23eCǈऎWHBᐐፄభጲো௣ၒ߲࢟ኹਜ਼BHDඡሢᏴ31eCਜ਼1eCᒄମᔈࣅࢯஂăၒ߲हࡍ໭௥ᎌ9eCĂ29eCਜ਼39eCྯᒬభኡᐐፄăᏴ඗ᎌኹჁࡼᄟୈሆǈहࡍ໭଀ೊభဧᔐᐐፄࡉࡵ51eCĂ61eC૞71eCăྯზၫᔊၒྜྷܠ߈࿸ᒙၒ߲हࡍ໭ࡼᐐፄăᅪݝ࢟ᔜॊኹ໭఼ᒜBHDඡሢǈ࡝ৈ࢟ྏభ࿸ᒙ໪ࣅ0ျहဟମăྯზၫᔊၒྜྷથభܠ߈࿸ᒙ໪ࣅᎧျहဟମࡼ܈ǈBHDࡼۣߒဟମৼࢾᒋᆐ41ntăࢅᐅဉ൱యज़ມᒙखည໭ถᆐࡍࣶၫᓘ૵ᄏ൱యज़ᄋ৙ມኹăNBY:925ݧ፿ஂဏహମࡼ25፛୭UEGOॖᓤăক໭ୈਖࢾ৔ᔫᏴ.51°Dᒗ,96°D౫ᐱ଀ᆨࣞपᆍă```````````````````````````````````።፿```````````````````````````````````ᄂቶ♦ᔈࣅᐐፄ఼ᒜ)BHD*♦ྯᒬᐐፄ࿸ᒙ)51eCĂ61eCĂ71eC*♦భܠ߈໪ࣅဟମ♦భܠ߈໪ࣅᎧျह܈♦3/8Wᒗ6/6W࢟Ꮞ࢟ኹपᆍ♦ࢅࡉ41oW0√I{ࡼၒྜྷݬఠᐅဉමࣞ♦ࢅࡉ1/15&!)࢜ቯᒋ*ࡼUIE ♦ࢅ৖੒ਈࣥෝါ♦ดݝᄋ৙ࢅᐅဉ൱యज़ມᒙǈ3W♦ݧ፿ஂဏహମࡼ25፛୭UEGO!)4nn!y!4nn*ॖᓤ♦.51°Dᒗ,96°D౫ᐱ଀ᆨࣞपᆍNBY:925௥ᎌBHDਜ਼ࢅᐅဉ൱యज़ມᒙ࢟വࡼ൱యज़हࡍ໭________________________________________________________________Maxim Integrated Products 1```````````````````````````````ࢾ৪ቧᇦ`````````````````````````````````````````````````````````````````````````````````଼છౖᅄ۾ᆪဵ፞ᆪၫ௣ᓾ೯ࡼፉᆪǈᆪᒦభถࡀᏴडፉ࿟ࡼݙᓰཀྵ૞ࡇᇙăྙኊ஠ጙݛཀྵཱྀǈ༿Ᏼิࡼ࿸ଐᒦݬఠ፞ᆪᓾ೯ăᎌਈଥৃĂ৙ૡૺࢿ৪ቧᇦǈ༿ೊ൥Nbyjn዇ᒴሾ၉ᒦቦǖ21911!963!235:!)۱ᒦਪཌ*ǈ21911!263!235:!)ฉᒦਪཌ*ǈ૞षᆰNbyjnࡼᒦᆪᆀᐶǖdijob/nbyjn.jd/dpnă+ܭာᇄ໺)Qc*0९੝SpITܪᓰࡼॖᓤăU!>!௳ࡒ۞ᓤă*FQ!>!ൡ੆๤ă፛୭๼ᒙᏴၫ௣ᓾ೯ࡼᔢઁ৊߲ăၫ൩ሤ૦ၫᔊ࿳ስ૦QEB ౸ዀऐ૦Ꭵಘᇹᄻ)ಿྙǈఌ౯PL*ၷሶᄰቧᓤᒙ঱ອᒠܣቑါഺስ૦JQ࢟જ0࢟જ્ፇN B Y :925௥ᎌBHDਜ਼ࢅᐅဉ൱యज़ມᒙ࢟വࡼ൱యज़हࡍ໭ABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICS(V DD = 3.3V, SHDN = V DD , C CT = 470nF, C CG = 2μF, GAIN = V DD , T A = T MIN to T MAX , unless otherwise specified. Typical values are at T A = +25°C.) (Note 1)Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.V DD to GND..............................................................-0.3V to +6V All Other Pins to GND.................................-0.3V to (V DD + 0.3V)Output Short-Circuit Duration.....................................Continuous Continuous Current (MICOUT, MICBIAS).......................±100mA All Other Pins....................................................................±20mAContinuous Power Dissipation (T A = +70°C)14-Pin TDFN-EP(derate 16.7mW/°C above +70°C)........................1481.5mW Operating Temperature Range ...........................-40°C to +85°C Junction Temperature......................................................+150°C Lead Temperature (soldering, 10s).................................+300°C Bump Temperature (soldering) Reflow............................+235°CNBY:925௥ᎌBHDਜ਼ࢅᐅဉ൱యज़ມᒙ࢟വࡼ൱యज़हࡍ໭_______________________________________________________________________________________3Note 1:Devices are production tested at T A = +25°C. Limits over temperature are guaranteed by design.Note 2:Dynamic range is calculated using the EIAJ method. The input is applied at -60dBFS (0.707μV RMS ), f IN = 1kHz.Note 3:Attack time measured as time from AGC trigger to gain reaching 90% of its final value.Note 4:CG is connected to an external DC voltage source, and adjusted until V MICOUT = 1.23V.Note 5:CG connected to GND with 2.2μF.ELECTRICAL CHARACTERISTICS (continued)(V DD = 3.3V, SHDN = V DD , C CT = 470nF, C CG = 2μF, GAIN = V DD , T A = T MIN to T MAX , unless otherwise specified. Typical values are at T = +25°C.) (Note 1)N B Y :925௥ᎌBHDਜ਼ࢅᐅဉ൱యज़ມᒙ࢟വࡼ൱యज़हࡍ໭4_______________________________________________________________________________________```````````````````````````````````````````````````````````````````````࢜ቯ৔ᔫᄂቶ(V DD = 5V, C CT = 470nF, C CG = 2.2μF, V TH = V MICBIAS x 0.4, GAIN = V DD (40dB), AGC disabled, no load, R L = 10k Ω, C OUT = 1μF,T A = +25°C, unless otherwise noted.)GAIN vs. FREQUENCYFREQUENCY (Hz)G A I N (d B )10k1k 1001020304050607080010100kPOWER-SUPPLY REJECTION RATIOvs. FREQUENCYFREQUENCY (Hz)P S R R (d B )10k1k 100-70-60-50-40-30-20-100-8010100kMICBIAS POWER-SUPPLY REJECTION RATIOvs. FREQUENCYFREQUENCY (Hz)P S R R (d B )10k1k 100-100-90-80-70-60-50-40-30-11010100kSUPPLY CURRENT vs. SUPPLY VOLTAGEM A X 9814 t o c 04SUPPLY VOLTAGE (V)S U P P L Y C U R R E N T (m A )5.55.04.04.53.53.02.62.72.82.93.03.13.23.33.43.52.52.56.0SHUTDOWN CURRENT vs. SUPPLY VOLTAGEM A X 9814 t o c 05SUPPLY VOLTAGE (V)S H U T D O W N C U R R E N T (n A )5.55.04.54.03.53.00.10.20.30.40.502.56.0MICROPHONE BIAS VOLTAGEvs. MICROPHONE BIAS SOURCE CURRENTM A X 9814 t o c 06I MICBIAS (mA)V M I C B I A S V O L T A G E (V )2520151050.51.01.52.02.50030TOTAL HARMONIC DISTORTION PLUS NOISEvs. FREQUENCYFREQUENCY (Hz)T H D +N (%)10k1k 1000.11100.0110100kTOTAL HARMONIC DISTORTION PLUS NOISEvs. OUTPUT VOLTAGEOUTPUT VOLTAGE (V RMS )T H D +N (%)1.00.50.11100.011.5INPUT-REFERRED NOISEvs. FREQUENCYFREQUENCY (kHz)I N P U T -R E F E R R E D N O I S E (μV R M S /√H z )1010.1100100.0110010001NBY:925௥ᎌBHDਜ਼ࢅᐅဉ൱యज़ມᒙ࢟വࡼ൱యज़हࡍ໭_______________________________________________________________________________________5MICBIAS NOISE vs. FREQUENCYMA X 9814 t o c 10FREQUENCY (Hz)M I C B I A S N O I S E(n V RM S /√H z )10k1k 100100100010,0001010100kSMALL-SIGNAL PULSE RESPONSE200μs/divV MICIN 10mV/div0VV MICOUT500mV/div0VTURN-ON RESPONSEM A X 9814 t o c 1220ms/divV SHDN 5V/div 0V V MICBIAS 2V/div 0VV MICOUT 1V/div 0VV OUT vs. V INV IN (mV RMS )V O U T (V R M S)100500.250.500.751.0000150V OUT vs. V INV IN (mV RMS )V O U T (V R M S)3020100.250.500.751.000040V OUT vs. V INV IN (mV RMS )V O U T (V R M S )1050.250.500.751.000015ATTACK TIME200μs/divV MICOUT 500mV/divC CT = 47nF0VATTACK TIME200μs/divV MICOUT 500mV/div0VHOLD AND RELEASE TIME20ms/divV MICOUT 500mV/divC CT = 47nF A/R = GND0V``````````````````````````````````````````````````````````````````````࢜ቯ৔ᔫᄂቶ)ኚ*(V DD = 5V, C CT = 470nF, C CG = 2.2μF, V TH = V MICBIAS x 0.4, GAIN = V DD (40dB), AGC disabled, no load, R L = 10k Ω, C OUT = 1μF,T A = +25°C, unless otherwise noted.)N B Y :925௥ᎌBHDਜ਼ࢅᐅဉ൱యज़ມᒙ࢟വࡼ൱యज़हࡍ໭6_______________________________________________________________________________________HOLD AND RELEASE TIME40ms/divV MICOUT 500mV/div0VHOLD AND RELEASE TIME100ms/divV MICOUT 500mV/div0V```````````````````````````````````````````````````````````````````````````````፛୭ႁී``````````````````````````````````````````````````````````````````````࢜ቯ৔ᔫᄂቶ)ኚ*(V DD = 5V, C CT = 470nF, C CG = 2.2μF, V TH = V MICBIAS x 0.4, GAIN = V DD (40dB), AGC disabled, no load, R L = 10k Ω, C OUT = 1μF,T A = +25°C, unless otherwise noted.)NBY:925௥ᎌBHDਜ਼ࢅᐅဉ൱యज़ມᒙ࢟വࡼ൱యज़हࡍ໭_______________________________________________________________________________________7MAX9814 AGC DISABLED400μs/div V MICIN 100mV/divV MICOUT(AC-COUPLED)1V/divMAX9814 fig01aMAX9814 AGC ENABLED400μs/divV MICIN 100mV/divV MICOUT(AC-COUPLED)1V/divMAX9814 fig01b0V0V0V0V```````````````````````````````ሮᇼႁීNBY:925ဵጙ౒ࢅ߅۾Ă঱ອᒠ൱యज़हࡍ໭ǈดᒙᔈࣅᐐፄ఼ᒜ)BHD*ጲૺࢅᐅဉ൱యज़ມᒙăNBY:925ဵᎅࢅᐅဉ༄ᒙहࡍ໭Ăభܤᐐፄहࡍ໭)WHB*Ăၒ߲हࡍ໭Ă൱యज़ມᒙखည໭ጲૺBHD఼ᒜ࢟വࢀࣶৈݙᄴ࢟വᔝ߅ăดݝ൱యज़ມᒙखည໭ᄋ৙3Wࡼມኹǈး፿᎖ࡍࣶၫᓘ૵ᄏ࢟ྏါ൱యज़ăNBY:925ॊᆐྯ଀ǈ࣪ၒྜྷ஠ቲहࡍăᏴ࢒ጙ଀ǈၒྜྷᄰਭᐐፄᆐ23eCࡼࢅᐅဉ༄ᒙहࡍ໭஠ቲદߡਜ਼हࡍǗ࢒औ଀ᐌᎅBHD఼ᒜࡼWHBᔝ߅ǈWHB0BHDᔝ੝ถ৫ဧᐐፄᏴ31eCᎧ1eCᒄମܤછǗၒ߲हࡍ໭ဵᔢઁጙ଀ǈ௥ᎌ9eCĂ29eCĂ31eCྯৈݙᄴࡼৼࢾᐐፄǈభᄰਭጙৈྯზ൝૷ၒྜྷܠ߈࿸ᒙăBHDᇄኹჁဟǈNBY:925ถ৫ᄋ৙51eCĂ61eC૞71eCࡼᐐፄăᔈࣅᐐፄ఼ᒜ)BHD*ݙ௥۸BHDࡼ໭ୈᏴၒྜྷᐐፄਭࡍဟǈၒ߲୓્߲ሚሻ݆ǗऎᏴၒྜྷᐐፄਭࡍဟǈBHDถ৫ܜ඾ၒ߲ሻ݆ăᅄ2Ⴥာᆐᐐፄਭࡍࡼ൱యज़ၒྜྷᏴ௥ᎌBHDਜ਼ݙࡒBHDࡼ༽ౚሆࡼ܈୷ăNBY:925ࡼBHD࣪ᐐፄ஠ቲ఼ᒜǈ၅ሌଶހၒ߲࢟ኹဵ॥ިਭᎾ࿸ඡሢăႲઁǈᄰਭభኡࡼဟମޟၫଢ଼ࢅ൱యज़हࡍ໭ᐐፄǈጲኀᑵਭࡍࡼၒ߲࢟ኹ७ᒋăᑚጙਭ߈߂ᆐ໪ࣅဟମăࡩၒ߲ቧ੓७ᒋଢ଼ࢅઁǈᐐፄᏴ੪࣢ဟମดۣߒၱିᓨზǈႲઁၒ߲ቧ੓દൻᐐଝࡵᑵޟᒋăকਭ߈߂ᆐۣߒਜ਼ျहဟମăहࡍ໭ࢯஂၒྜྷቧ੓ࡼႥࣞᎅᅪݝࢾဟ࢟ྏD DU ਜ਼B0S࣡࢟ኹ࿸ᒙăBHDඡሢభᄰਭW UI ࢯஂăᐐፄၱି೟ᆐၒྜྷቧ੓७ᒋࡼ਽ၫǈᔢࡍBHDၱିᆐ31eCăᅄ3৊߲೫ၒྜྷᅃ཭ި߲Ꮎ࿸ඡሢဟǈ࣪ၒ߲໪ࣅဟମĂۣߒဟମਜ਼ျहဟମࡼ፬ሰăྙਫ๼ᒙࡼ໪ࣅဟମਜ਼ျहဟମሰ።ვ౐ǈᐐፄႲቧ੓ࣅზܤછऎ౐Ⴅࢯஂǈޟޟ્ޘညಢ႒Đກ཭đဉ)qvnqjoh*૞Đࠇᇦđဉ)csfbuijoh*ࡼፒຫᐅဉăࢯஂBHDࡼဟମޟၫဧ໚ᎧဉᏎປ๼ǈ࠭ऎࡉࡵᔢଛ቉ਫă࣪᎖กቋጲDEፒಘᆐᓍገፒᏎࡼ።፿౶ႁǈᅎୀ໪ࣅဟମᆐ271μtǈျहဟମᆐ91ntăᄰޟ༽ౚሆǈፒಘ݃ह࿸۸ገ܈Ꭻፒ૞࢟፬ࢀ࿸۸ኊገৎ࣢ࡼျहဟମăᅄ2/!ࡒᎌBHDਜ਼඗ᎌBHDࡼ൱యज़ၒྜྷ໪ࣅဟମ໪ࣅဟମဵᒎࡩၒྜྷቧ੓ިਭඡሢ࢟ຳઁǈBHDଢ଼ࢅᐐፄჅኊࡼဟମăᐐፄᏴ໪ࣅဟମดጲᒎၫተါၱିǈࢾፃᆐጙৈဟମޟၫăকဟମޟၫᆐ3511y D DU ෇)໚ᒦD DU ဵᅪݝࢾဟ࢟ྏ*ǖ•ኡན୷࣢ࡼ໪ࣅဟମǈጲۣᑺBHD౐Ⴅሰ።ၾზቧ੓ǈಿྙૣ৴ဉ)ፒಘ*૞།ૣဉ)EWE*ă•ኡ፿୷ޠࡼ໪ࣅဟମǈBHD୓઄൒ၾဟख़ᒋǈᒑᎌࡩဉሰීመᐐଝဟݣଢ଼ࢅᐐፄăၾဟख़ᒋ݀ݙۻၱିǈࡣ୷ሰࡼဉፒ୓ۻၱିăᑚዹభ࠭ፒ೟࿟ଢ଼ࢅሰဉǈဧࣅზपᆍᔢࡍછăۣߒဟମۣߒဟମဵᒎቧ੓ଢ଼ࡵඡሢጲሆĂျहਭ߈ఎဪጲ༄ࡼዓߕăۣߒဟମดݝ࿸ᒙᆐ41ntǈ݀༦ݙభࢯăࡩቧ੓ިਭඡሢǈᒮቤ஠ྜྷ໪ࣅ୿ࣤဟǈۣߒဟମᒫᒏăျहဟମျहဟମဵᒎቧ੓ࢰൢᒗඡሢጲሆǈ݀༦ளਭ41ntࡼۣߒဟମᒄઁǈᐐፄૄࡵ໚ᑵޟၺຳჅኊࡼဟମăျहဟମࢾፃᆐࡩၒྜྷቧ੓ࢰൢᒗUIඡሢጲሆǈ݀༦ளਭ41nt ࡼۣߒဟମᒄઁǈᐐፄ࠭31eCኹჁျहࡵᑵޟᐐፄࡼ21&ࡼဟମăျहဟମభࢯǈ໚ᔢቃᒋᆐ36ntăျहဟମᎅD DU ࿸ᒙࡼ໪ࣅဟମጲૺಽ፿B0S )ྙܭ2Ⴥာ*࿸ᒙࡼ໪ࣅ0ျहဟମ܈ཀྵࢾǖ•ݧ፿ቃ܈ᒋǈဧBHDࡼႥࣞࡉࡵᔢࡍă•ݧ፿ࡍ܈ᒋǈဧፒᒠࡉࡵᔢଛǈऴᒏBHDᒮআࢯஂ࣢ဟମดި߲ඡሢࡼቧ੓ăBHDၒ߲ඡሢ૮૚BHD৔ᔫࡼၒ߲ඡሢభᄰਭᅪݝ࢟ᔜॊኹ໭ࢯஂăᅲ߅࣪ॊኹ໭ࡼ࿸ᒙઁǈBHD୓ଢ଼ࢅᐐፄǈဧၒ߲࢟ኹᎧUIၒྜྷ࣡࿸ᒙࡼ࢟ኹሤປ๼ă൱యज़ມᒙNBY:925ᎅดݝᄋ৙ࢅᐅဉ൱యज़ມᒙ࢟ኹǈభདࣅࡍࣶၫᓘ૵ᄏ࢟ྏါ൱యज़ăࢯஂ൱యज़ມᒙᒗ3Wǈጲۣᑺ஠ྜྷࢅᐅဉ༄ᒙहࡍ໭ࡼၒྜྷቧ੓ݙۻὥᆡࡵ࢐ă```````````````````````````````።፿ቧᇦ࿸ᒙ໪ࣅဟମਜ਼ျहဟମ໪ࣅဟମਜ਼ျहဟମॊܰᎅDUਜ਼HOEᒄମࡼ࢟ྏጲૺB0Sࡼ൝૷ᓨზ)ܭ2*௼ࢾăB0Sᆐྯზ൝૷ၒྜྷǈభ࿸ᒙ໪ࣅᎧျहဟମ܈ăো௣ܭ3Ⴥ೰ࡼሤ።࢟ྏǈభጲኡᐋ໪ࣅဟମਜ਼ျहဟମăN B Y :925௥ᎌBHDਜ਼ࢅᐅဉ൱యज़ມᒙ࢟വࡼ൱యज़हࡍ໭8_______________________________________________________________________________________10ms/divATTACKRELEASEHOLDᅄ3/!ၒྜྷᅃ཭ިਭBHDඡሢܭ2/!໪ࣅᎧျह܈ܭ3/!໪ࣅ.ျहဟମ࿸ᒙBHDඡሢྦገ࿸ᒙ൱యज़ၒ߲ὥᆡဟࡼၒ߲࢟ኹඡሢǈ።ᏴNJDCJBTਜ਼࢐ᒄମೌ୻ᅪݝ࢟ᔜॊኹ໭ǈ࢟ᔜॊኹ໭ၒ߲ೌ୻ࡵUIă࢟ኹW UIభཀྵࢾၒ߲ὥᆡဟࡼख़ᒋ࢟ኹඡሢăࠥဟǈၒ߲࣡ࡼᔢࡍቧ੓ڼ७ᆐW UIࡼ3۶ǈۣ݀ߒݙܤǈᒇࡵၒྜྷቧ੓७ᒋၱିᆐᒏăྦገணᒏBHDǈభ୓UIೌ୻ᒗNJDCJBTă൱యज़ມᒙ࢟ᔜNJDCJBTభᏎ߲31nBࡼ࢟ഗăኡᐋးࡩࡼS NJDCJBTǈ࠭ऎᆐᓘ૵ᄏ൱యज़ᄋ৙Ⴥኊገࡼມᒙ࢟ഗăጙۅ౶ႁǈ3/3lΩࡼᔜᒋ࣪᎖࢜ቯഉැࣞࡼ൱యज़ጯளᔗ৫೫ăਈ᎖ມᒙ࢟ᔜࡼኡᐋǈ༿ݬఠ൱యज़ၫ௣ᓾ೯ăມᒙ࢟ྏNBY:925ࡼCJBTၒ߲Ᏼดݝளਭદߡǈᄋ৙ࢅᐅဉມኹăݧ፿ጙᒑ581oGࡼ࢟ྏ୓CJBT๬വᒗ࢐ăၒྜྷ࢟ྏ൱యज़हࡍ໭ࡼၒྜྷୣഗẮ੝࢟ྏ)D JO*ਜ਼ၒྜྷᔜఝ)S JO*ᔝ߅೫ጙৈ঱ᄰ൉݆໭ǈభ൉߹ၒྜྷቧ੓ᒦࡼჅᎌᒇഗມᒙ)ݬ୅࢜ቯ።፿࢟വ0৖ถౖᅄ*ăD JOభऴᒏၒྜྷቧ੓Ꮞࡼᒇഗ߅ॊ߲ሚᏴहࡍ໭ࡼၒ߲ăଣ࿸ၒྜྷቧ੓Ꮞᔜఝᆐഃǈᐌ঱ᄰ൉݆໭ࡼ.4eC࢛ᆐǖኡᐋးࡩࡼD JOဧg.4eC`JOᏐࢅ᎖ැঢຫൈăg.4eC`JO࿸ᒙਭ঱ǈ્፬ሰहࡍ໭ࡼࢅຫሰ።ǈኡᐋࢅ࢟ኹᇹၫࡼ࢟஑ᒠ࢟ྏă࣪᎖ୣഗẮ੝࢟ྏ౶ႁǈി࢟ஊ࢟ྏĂᶉ࢟ྏ૞ۡෞ࢟஑ᒠ࢟ྏ࣒ဵ੪ੑࡼኡᐋă঱࢟ኹᇹၫࡼ࢟ྏǈᓄྙჿࠣ࢟ྏ)ऻD1H࢟஑ᒠ*ǈ્ଝ௭ࢅຫပᑞăၒ߲࢟ྏNBY:925ࡼၒ߲ມᒙᏴ2/34Wǈྦገሿ߹ᒇഗပࢯǈ።ݧ፿ୣഗẮ੝࢟ྏ)D PVU*ăఠ൅ࡵሆጙ଀ࡼၒྜྷᔜఝ)S M*ǈD PVUਜ਼S Mᔝ߅঱ᄰ൉݆໭ăଣ࿸ၒ߲ᔜఝᆐഃǈ঱ᄰ൉݆໭ࡼ.4eC࢛ᆐǖਈࣥNBY:925௥ᎌࢅ৖੒ਈࣥෝါăࡩSHDNᆐࢅ࢟ຳဟǈ࢟Ꮞ࢟ഗࢰൢᒗ1/12μBǈၒ߲஠ྜྷ঱ᔜᓨზǈ൱యज़ࡼມᒙ࢟ഗਈࣥăདࣅSHDNᆐ঱࢟ຳǈဧถहࡍ໭ă༿ᇖ୓SHDNኞహă࢟Ꮞ๬വᎧQDCݚ௜ݧ፿ጙᒑ1/2μGࡼ࢟ྏ୓࢟Ꮞ๬വᒗ࢐ăჁ࣢፛ሣޠࣞభଢ଼ࢅ଎ည࢟ྏǈᅪݝᏄୈ።஧భถణத໭ୈहᒙǈᅎୀኡ፿ܭᄣᏄୈăᏴᄴဟ௥ᎌෝผ࢐ਜ਼ၫᔊ࢐ࡼᇹᄻᒦǈNBY:925ࡼ࢐Ꭷෝผ࢐ሤೌăNBY:925௥ᎌBHDਜ਼ࢅᐅဉ൱యज़ມᒙ࢟വࡼ൱యज़हࡍ໭_______________________________________________________________________________________9N B Y :925௥ᎌBHDਜ਼ࢅᐅဉ൱యज़ມᒙ࢟വࡼ൱యज़हࡍ໭10______________________________________________________________________________________```````````````````````````````````````````````````````````````````࢜ቯ።፿࢟വ0৖ถౖᅄNBY:925൱యज़हࡍ໭______________________________________________________________________________________11`````````````````````````````````በຢቧᇦPROCESS: BiCMOS`````````````````````````````````፛୭๼ᒙN B Y :925൱యज़हࡍ໭12______________________________________________________________________________________`````````````````````````````````````````````````````````````````````````````ॖᓤቧᇦྙኊᔢதࡼॖᓤᅪተቧᇦਜ਼੆๤ݚ௜ǈ༿އኯ/packages ăNBY:925൱యज़हࡍ໭______________________________________________________________________________________13````````````````````````````````````````````````````````````````````````````````ॖᓤቧᇦ)ኚ*ྙኊᔢதࡼॖᓤᅪተቧᇦਜ਼੆๤ݚ௜ǈ༿އኯ/packages ăN B Y :925൱యज़हࡍ໭````````````````````````````````````````````````````````````````````````````ኀࢿ಼ဥNbyjnݙ࣪Nbyjnޘອጲᅪࡼྀੜ࢟വဧ፿ঌᐊǈጐݙᄋ৙໚ᓜಽ኏భăNbyjnۣഔᏴྀੜဟମĂ඗ᎌྀੜᄰۨࡼ༄ᄋሆኀখޘອᓾ೯ਜ਼ਖৃࡼཚಽă14____________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600©2009 Maxim Integrated ProductsNbyjn ဵNbyjn!Joufhsbufe!Qspevdut-!Jod/ࡼᓖݿ࿜ܪăNbyjn ۱யێူࠀ۱ய9439ቧረᎆᑶܠ൩211194඾ॅ࢟જǖ911!921!1421࢟જǖ121.732262::ࠅᑞǖ121.732263::。

MAX809STRG中文资料

• Four Guaranteed Minimum Power−On Reset Pulse Width Available
(1 ms, 20 ms, 100 ms, and 140 ms)
• RESET Output Guaranteed to VCC = 1.0 V. • Low Supply Current • Compatible with Hot Plug Applications • VCC Transient Immunity • No External Components • Wide Operating Temperature: −40°C to 105°C • Pb−Free Packages are Available
characterization.
2. The maximum package power dissipation limit must not be exceeded.
PD
+
TJ(max) * RqJA
TA
with TJ(max) = 150°C
2
元器件交易网
4.78
−
5.02
4.66
−
5.14
MAX8xxLTR, MAX8xxSQ463 TA = +25°C TA = −40°C to +85°C TA = +85°C to +105°C
4.56
4.63
4.70
4.50
−
4.75
4.40
−
4.86
MAX809HTR TA = +25°C TA = −40°C to +85°C TA = +85°C to +105°C

max538中文资料

_______________General DescriptionThe MAX531/MAX538/MAX539 are low-power, voltage-output, 12-bit digital-to-analog converters (DACs) speci-fied for single +5V power-supply operation. The MAX531can also be operated with ±5V supplies. The MAX538/MAX539 draw only 140µA, and the MAX531(with internal reference) draws only 260µA. The MAX538/MAX539 come in 8-pin DIP and SO packages,while the MAX531 comes in 14-pin DIP and SO pack-ages. All parts have been trimmed for offset voltage,gain, and linearity, so no further adjustment is necessary.The MAX538’s buffer is fixed at a gain of +1 and the MAX539’s buffer at a gain of +2. The MAX531’s internal op amp may be configured for a gain of +1 or +2, as well as for unipolar or bipolar output voltages. The MAX531 can also be used as a four-quadrant multiplier without external resistors or op amps.For parallel data inputs, see the MAX530 data sheet._______________________ApplicationsBattery-Powered Test Instruments Digital Offset and Gain AdjustmentBattery-Operated/Remote Industrial Controls Machine and Motion Control Devices Cellular Telephones___________________________Featureso Operate from Single +5V Supply o Buffered Voltage Outputo Internal 2.048V Reference (MAX531)o 140µA Supply Current (MAX538/MAX539)o INL = ±1/2LSB (max)o Guaranteed Monotonic over Temperature o Flexible Output Ranges:0V to V DD (MAX531/MAX539)V SS to V DD (MAX531)0V to 2.6V (MAX531/MAX538)o 8-Pin SO/DIP (MAX538/MAX539)o Power-On Reseto Serial Data Output for Daisy-Chaining______________Ordering InformationMAX531/MAX538/MAX539+5V , Low-Power, Voltage-Output,Serial 12-Bit DACs________________________________________________________________Maxim Integrated Products 1_________________Pin Configurations________________Functional DiagramFor free samples & the latest literature: , or phone 1-800-998-880019-0172; Rev 6; 2/97PART TEMP. RANGE PIN-PACKAGE MAX531ACPD 0°C to +70°C 14 Plastic DIP MAX531BCPD 0°C to +70°C 14 Plastic DIP MAX531ACSD 0°C to +70°C 14 SO MAX531BCSD 0°C to +70°C 14 SO ERROR (LSB)±1/2±1±1/2±1MAX531BC/D0°C to +70°CDice*±1Ordering Information continued at end of data sheet.*Dice are specified at T A = +25°C only.M A X 531/M A X 538/M A X 539+5V , Low-Power, Voltage-Output Serial 12-Bit DACs 2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSV DD to DGND and V DD to AGND................................-0.3V, +6V V SS to DGND and V SS to AGND .................................-6V, +0.3V V DD to V SS .................................................................-0.3V, +12V AGND to DGND........................................................-0.3V, +0.3V Digital Input Voltage to DGND ......................-0.3V, (V DD + 0.3V)REFIN..................................................(V SS - 0.3V), (V DD + 0.3V)REFOUT to AGND.........................................-0.3V, (V DD + 0.3V)RFB .....................................................(V SS - 0.3V), (V DD + 0.3V)BIPOFF................................................(V SS - 0.3V), (V DD + 0.3V)V OUT (Note 1)................................................................V SS , V DD Continuous Current, Any Pin................................-20mA, +20mAContinuous Power Dissipation (T A = +70°C)8-Pin Plastic DIP (derate 9.09mW/°C above +70°C)....727mW 8-Pin SO (derate 5.88mW/°C above +70°C)................471mW 14-Pin Plastic DIP (derate 10.00mW/°C above +70°C)...800mW 14-Pin SO (derate 8.33mW/°C above +70°C)..............667mW Operating Temperature RangesMAX53__C__.....................................................0°C to +70°C MAX53__E__..................................................-40°C to +85°C Storage Temperature Range.............................-65°C to +165°C Lead Temperature (soldering, 10sec).............................+300°CELECTRICAL CHARACTERISTICS—Single +5V Supply(V DD = +5V ±10%, V SS = 0V, AGND = DGND = 0V, REFIN = 2.048V (external), RFB = BIPOFF = VOUT (MAX531), C REFOUT = 33µF (MAX531), R L = 10k Ω, C L = 100pF, T A = T MIN to T MAX , unless otherwise noted.)Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.Note 1:The output may be shorted to V DD , V SS ,or AGND if the package power dissipation limit is not exceeded.MAX531/MAX538/MAX539+5V , Low-Power, Voltage-Output,Serial 12-Bit DACsELECTRICAL CHARACTERISTICS—Single +5V Supply (continued)(V DD = +5V ±10%, V SS = 0V, AGND = DGND = 0V, REFIN = 2.048V (external), RFB = BIPOFF = VOUT (MAX531), C REFOUT = 33µF (MAX531), R L = 10k Ω, C L = 100pF, T A = T MIN to T MAX , unless otherwise noted.)M A X 531/M A X 538/M A X 539+5V , Low-Power, Voltage-Output,Serial 12-Bit DACs 4_______________________________________________________________________________________ELECTRICAL CHARACTERISTICS—Dual Supplies (MAX531 Only)(V DD = +5V ±10%, V SS = -5V ±10%, AGND = DGND = 0V, REFIN = 2.048V (external), RFB = BIPOFF = VOUT, C REFOUT = 33µF, R L = 10k Ω, C L = 100pF, T A = T MIN to T MAX , unless otherwise noted.)MAX531/MAX538/MAX539+5V , Low-Power, Voltage-Output,Serial 12-Bit DACs_______________________________________________________________________________________5Note 2:In single-supply operation, INL and GE calculated from code 11 to code 4095. Tested at V DD = +5V.Note 3:This specification applies to both gain-error power-supply rejection ratio and offset-error power-supply rejection ratio.Note 4:Guaranteed by design.Note 5:Tested at I OUT = 100µA. The reference can typically source up to 5mA (see Typical Operating Characteristics ).ELECTRICAL CHARACTERISTICS—Dual Supplies (MAX531 Only) (continued)(V DD = +5V ±10%, V SS = -5V ±10%, AGND = DGND = 0V, REFIN = 2.048V (external), RFB = BIPOFF = VOUT, C REFOUT = 33µF, R L = 10k Ω, C L = 100pF, T A = T MIN to T MAX , unless otherwise noted.)M A X 531/M A X 538/M A X 539+5V , Low-Power, Voltage-Output,Serial 12-Bit DACs 6_______________________________________________________________________________________120-60SUPPLY CURRENT vs. TEMPERATURE140TEMPERATURE (°C)S U P P L Y C U R R E N T (µA )60240180-202080300-40401002802602202001604-141100100kMAX531GAIN vs. FREQUENCY-12FREQUENCY (Hz)G A I N (d B )-8-402-2-6-101k 10k800101k 100kMAX531AMPLIFIER SIGNAL-TO-NOISE RATIO10FREQUENCY (Hz)S I G N A L -T O -N O I S E R A T I O (d B )20406030507010k1002.0552.045-60MAX531REFERENCE VOLTAGE vs.TEMPERATUREM A X 531-6TEMPERATURE (°C)R E F E R E N C E V O L T A G E (V )602.050-202080100400-40-11001101k100kANALOG FEEDTHROUGH vs.FREQUENCY-30-70FREQUENCY (Hz)A N A L O G F E E D T H R O U G H (d B )10010k1M-100-90-80-60-50-40-20-1028V DD -5V DD -1OUTPUT SOURCE CAPABILITY vs. OUTPUT PULL-UP VOLTAGE73M A X 531-4OUTPUT PULL-UP VOLTAGE (V)O U T P U T S OU R C E C A P A B I L I T Y (m A )V DD -256V DD -4V DD -34V DD -0100.25-1.2512INTEGRAL NONLINEARITY vs. DIGITAL INPUT CODE (FIRST 12 CODES)-1.00DIGITAL INPUT CODE (DECIMAL)I N T E G R A L N O N L I N E A R I T Y (L S B )8-0.50-0.75-0.25261004INTEGRAL NONLINEARITY vs. DIGITALINPUT CODE (ALL CODES)5121024153620482560307235844095-0.250.25I N T E G R A L N O N L I N E A R I T Y (L S B )DIGITAL INPUT CODE (DECIMAL)1200.8OUTPUT SINK CAPABILITY vs. OUTPUT PULL-DOWN VOLTAGE210M A X 531-3OUTPUT PULL-DOWN VOLTAGE (V)O U T P U T S I N K C A P A B I L I T Y (m A )0.6640.20.48 1.01416__________________________________________Typical Operating Characteristics(V DD = +5V, V REFIN = 2.048V, T A = +25°C, unless otherwise noted.)MAX531/MAX538/MAX539+5V , Low-Power, Voltage-Output,Serial 12-Bit DACs_______________________________________________________________________________________7____________________________Typical Operating Characteristics (continued)(V DD = +5V, V REFIN = 2.048V, T A = +25°C, unless otherwise noted.)20-301MAX531GAIN AND PHASE vs. FREQUENCY-1010FREQUENCY (kHz)G A I N (d B )10100-208002.05202.04905.0MAX531 REFERENCE OUTPUT VOLTAGEvs. REFERENCE LOAD CURRENT2.04952.0515M A X 531-14REFERENCE LOAD CURRENT (mA)R E F E R E N C E O U T P U T (V )3.02.05052.0500 1.0 2.04.02.05100.5 1.5 2.5 3.5 4.5V DD = ±5V, V REFIN = 2V, BIPOLAR CONFIGURATION A: CS RISING EDGE, 5V/div B: VOUT, NO LOAD, 1V/div ABNEGATIVE SETTLING TIME (MAX531)5µs/divDIGITAL FEEDTHROUGHABCS = HIGHA: DIN = 4Vp-p, 100kHz B: VOUT, 10mV/div 2µs/divABPOSITIVE SETTLING TIME (MAX531)V DD = ±5V, V REFIN = 2V, BIPOLAR CONFIGURATION A: CS RISING EDGE, 5V/div B: VOUT, NO LOAD, 1V/div 5µs/divM A X 531/M A X 538/M A X 539+5V , Low-Power, Voltage-Output Serial 12-Bit DACs 8_______________________________________________________________________________________10FUNCTION1BIPOFF Bipolar Offset/Gain Resistor 2DIN Serial Data Input 3CLR Clear. Asynchronously sets DAC register to 000 hex.PIN—14SCLK Serial Clock Input 5CS Chip Select, active low 6DOUT Serial Data Output for daisy-chaining 7DGND Digital Ground —238AGND Analog Ground 9REFIN Reference Input 4—56—REFOUT Reference Output,2.048V11—V SS Negative Power Supply 127VOUT DAC Output138V DD Positive Power Supply 14—RFBFeedback ResistorMAX531MAX538MAX539NAME____________________Pin Description_______________Detailed DescriptionGeneral DAC DiscussionThe MAX531/MAX538/MAX539 use an “inverted” R-2R ladder network with a single-supply CMOS op amp to con-vert 12-bit digital data to analog voltage levels (see Functional Diagram). The term “inverted” describes the ladder network because the REFIN pin in current-output DACs is the summing junction, or virtual ground, of an op amp. However, such use would result in the output voltage being the inverse of the reference voltage. The MAX531/MAX538/MAX539’s topology makes the output the same polarity as the reference input.An internal reset circuit forces the DAC register to reset to 000 hex on power-up. Additionally, a clear CLR pin, when held low, sets the DAC register to 000 hex. CLR operates asynchronously and independently from the chip-select (CS)pin.Buffer AmplifierThe output buffer is a unity-gain stable, rail-to-rail output,BiCMOS op amp. Input offset voltage and CMRR are trimmed to achieve better than 12-bit performance.Settling time is 25µs to 0.01% of final value. The settling time is considerably longer when the DAC code is initially set to 000 hex, because at this code the op amp is com-pletely debiased. Start from code 001 hex if necessary.The output is short-circuit protected and can drive a 2k Ωload with more than 100pF load capacitance.Figure 1. Timing DiagramInternal Reference (MAX531 only)The on-chip reference is lesser trimmed to generate 2.048V at REFOUT. The output stage can source and sink current,so REFOUT can settle to the correct voltage quickly in response to code-dependent loading changes. Typically,source current is 5mA and sink current is 100µA.REFOUT connects the internal reference to the R-2R DAC ladder at REFIN. The R-2R ladder draws 50µA maximum load current. If any other connection is made to REFOUT,ensure that the total load current is less than 100µA to avoid gain errors.For applications requiring very low-noise performance,connect a 33µF capacitor from REFOUT to AGND. If noise is not a concern, a lower value capacitor (3.3µF min) may be used. To reduce noise further, insert a buffered RC filter between REFOUT and REFIN (Figure 2). The reference bypass capacitor, C REFOUT , is still required for reference stability. In applications not requiring the reference, con-nect REFOUT to V DD or use the MAX538 or MAX539 (no internal reference).External ReferenceAn external reference in the range (V SS + 2V) to (V DD - 2V)may be used with the MAX531 in dual-supply operation.With the MAX538/MAX539 or the MAX531 in single-supply use, the reference must be positive and may not exceed V DD - 2V. The reference voltage determines the DAC’s full-scale output. The DAC input resistance is code dependent and is minimum (40k Ω) at code 555 hex and virtually infi-nite at code 000 hex. REFIN’s input capacitance is also code dependent and has a 50pF maximum value at sever-al codes. Because of the code-dependent nature of refer-ence input impedances, a high-quality, low-output-imped-ance amplifier (such as the MAX480 low-power, precision op amp) should be used.If an upgrade to the internal reference is required, the 2.5V MAX873A is suitable: ±15mV initial accuracy, TCV OUT =7ppm/°C (max).Logic InterfaceThe MAX531/MAX538/MAX539 logic inputs are designed to be compatible with TTL or CMOS logic levels. However, to achieve the lowest power dissipation, drive the digital inputs with rail-to-rail CMOS logic. With TTL logic levels, the power requirement increases by a factor of approximately 2.Serial Clock and Update RateFigure 1 shows the MAX531/MAX538/MAX539 timing. The maximum serial clock rate is given by 1 / (t CH + t CL ),approximately 14MHz. The digital update rate is limited by the chip-select period, which is 16 x (t CH + t CL ) + t CSW .This equals a 1.14µs, or 877kHz, update rate. However, the DAC settling time to 12 bits is 25µs, which may limit the update rate to 40kHz for full-scale step transitions.____________Applications InformationRefer to Figures 3a and 3b for typical operating connec-tions.Serial InterfaceThe MAX531/MAX538/MAX539 use a three-wire serial interface that is compatible with SPI™, QSPI™(CPOL = CPHA = 0), and Microwire™ standards as shown in Figures 4 and 5. The DAC is programmed by writing two 8-bit words (see Figure 1 and the Functional Diagram ).Sixteen bits of serial data are clocked into the DAC MSB first with the MSB preceded by four fill (dummy) bits. The four dummy bits are not normally needed. They are required only when DACs are daisy-chained. Data is clocked in on SCLK’s rising edge while CS is low. The seri-al input data is held in a 16-bit serial shift register. On CS’s rising edge, the 12 least significant bits are transferred to the DAC register and update the DAC. With CS high, data cannot be clocked into the MAX531/MAX538/MAX539.The MAX531/MAX538/MAX539 input data in 16-bit blocks.The SPI and Microwire interfaces output data in 8-bit blocks, thereby requiring two write cycles to input data to the DAC. The QSPI interface allows variable data input from eight to 16 bits, and can be loaded into the DAC in one write cycle.MAX531/MAX538/MAX539+5V , Low-Power, Voltage-Output,Serial 12-Bit DACs_______________________________________________________________________________________9Figure 2. Reference Noise vs. FrequencySPI and QSPI are trademarks of Motorola, Inc.Microwire is a trademark of National Semiconductor Corp.M A X 531/M A X 538/M A X 539Daisy-Chaining DevicesThe serial output, DOUT, allows cascading of two or more DACs. The data at DIN appears at DOUT,delayed by 16 clock cycles plus one clock width. For low power, DOUT is a CMOS output that does not require an external pull-up resistor. DOUT does not go into a high-impedance state when CS is high. DOUT changes on SCLK’s falling edge when CS is low. When CS is high, DOUT remains in the state of the last data bit.Any number of MAX531/MAX538/MAX539 DACs can be daisy-chained by connecting the DOUT of one device to the DIN of the next device in the chain. For proper timing, ensure that t CL (CS low to SCLK high) is greater than t DO + t DS .Unipolar ConfigurationThe MAX531 is configured for a gain of +1 (0V to V REFIN unipolar output) by connecting BIPOFF and RFB to VOUT (Figure 6). The converter operates from either sin-gle or dual supplies in this configuration. See Table 1 for the DAC-latch contents (input) vs. the analog VOUT (output). In this range, 1LSB = V REFIN (2-12). The MAX538 is internally configured for unipolar gain = +1operation.A gain of +2 (0V to 2V REFIN unipolar output) is set up by connecting BIPOFF to AGND and RFB to VOUT (Figure 7). Table 2 shows the DAC-latch contents vs.VOUT. The MAX531 operates from either single or dualsupplies in this mode. In this range, 1LSB = (2)(V REFIN )(2-12) = (V REFIN )(2-11). The MAX539 is internally config-ured for unipolar gain = +2 operation.Bipolar ConfigurationA bipolar range is set up by connecting BIPOFF to REFIN and RFB to VOUT, and operating from dual (±5V) supplies (Figure 8). Table 3 shows the DAC-latch contents (input) vs. VOUT (output). In this range,1LSB = V REFIN (2-11).Four-Quadrant MultiplicationThe MAX531 can be used as a four-quadrant multiplier by connecting BIPOFF to REFIN and RFB to VOUT,using (1) an offset binary digital code, (2) bipolar power supplies, using dual power supplies, and (3) a bipolar analog input at REFIN within the range V SS + 2V to V DD - 2V, as shown in Figure 9.In general, a 12-bit DAC’s output is (D) (V REFIN)(G),where “G” is the gain (+1 or +2) and “D” is the binary representation of the digital input divided by 212or 4096. This formula is precise for unipolar operation.However, for bipolar, offset binary operation, the MSB is really a polarity bit. No resolution is lost, as there are the same number of steps. The output voltage, howev-er, has been shifted from a range of, for example, 0V to 4.096V (G = +2) to a range of -2.048V to +2.048V.Keep in mind that when using the DAC as a four-quad-rant multiplier, the scale is skewed. Negative full scale is -V REFIN , while positive full scale is +V REFIN - 1LSB.+5V , Low-Power, Voltage-Output,Serial 12-Bit DACs 10______________________________________________________________________________________Figure 3a. MAX531 Typical Operating CircuitMAX531/MAX538/MAX539+5V , Low-Power, Voltage-Output,Serial 12-Bit DACs11Figure 4. Microwire ConnectionFigure 5. SPI/QSPI ConnectionFigure 6. Unipolar Configuration (0V to +2.048V Output)Table 1. Unipolar Binary Code Table (0V to V REFIN Output), Gain = +1Figure 7. Unipolar Configuration (0V to +4.096V Output)Table 2. Unipolar Binary Code Table (0V to 2V REFIN Output), Gain = +2INPUT OUTPUT 111111111111100000000001100000000000011111111111000000000001000000000000+2 (V REFIN )40954096+2 (V REFIN )20494096+2 (V REFIN ) 20484096+2 (V REFIN )20474096+2 (V REFIN )1 4096OV= +V REFINM A X 531/M A X 538/M A X 539Single-Supply LinearityAs with any amplifier, the MAX531/MAX538/MAX539’s output buffer can be positive or negative. When the off-set is positive, it is easily accounted for (Figure 10).However, when the offset is negative, the buffer output cannot follow linearly when there is no negative supply.In that case, the amplifier output (VOUT) remains at ground until the DAC voltage is sufficient to overcome the offset and the output becomes positive.Normally, linearity is measured after accounting for zero error and gain error. Since, in single-supply opera-tion, the actual value of a negative offset is unknown, it cannot be accounted for during test. Additionally, the output buffer amplifier exhibits a nonlinearity near-zero output when operating with a single supply. To account for this nonlinearity in the MAX531/MAX538/MAX539,linearity and gain error are measured from code 11 to code 4095. The output buffer’s offset and nonlinear behavior do not affect monotonicity, and these DACs are guaranteed monotonic starting with code zero. In dual-supply operation, linearity and gain error are mea-sured from code 0 to 4095.Power-Supply Bypassing andGround ManagementBest system performance is obtained with printed cir-cuit boards that use separate analog and digital ground planes. Wire-wrap boards are not recommend-ed. The two ground planes should be connected together at the low-impedance power-supply source.DGND and AGND should be connected together at the chip. For the MAX531 in single-supply applications,connect V SS to AGND at the chip. The best ground connection may be achieved by connecting the DAC’s DGND and AGND pins together and connecting that point to the system analog ground plane. If the DAC’s DGND is connected to the system digital ground, digi-tal noise may get through to the DAC’s analog portion. Bypass V DD (and V SS in dual-supply mode) with a 0.1µF ceramic capacitor, connected between V DD and AGND (and between V SS and AGND). Mount with short leads close to the device. Ferrite beads may also be used to further isolate the analog and digital power supplies.Figures 11a and 11b illustrate the grounding and bypassing scheme described.Saving PowerWhen the DAC is not being used by the system, mini-mize power consumption by setting the appropriate code to minimize load current. For example, in bipolar mode, with a resistive load to ground, set the DAC code to mid-scale (Table 3). If there is no output load,minimize internal loading on the reference by setting the DAC to all 0s (on the MAX531, use CLR ). Under this condition, REFIN is high impedance and the op amp operates at its minimum quiescent current. Due to these low current levels, the output settling time for an input code close to 0 typically increases to 60µs (no more than 100µs).+5V , Low-Power, Voltage-Output,Serial 12-Bit DACs 12______________________________________________________________________________________Figure 8. Bipolar Configuration (-2.048V to +2.048V Output)Table 3. Bipolar (Offset Binary) Code Table (-V REFIN to +V REFIN Output)INPUTOUTPUT111111111111100000000001100000000000011111111111000000000001000000000000(+V REFIN )20472048(+V REFIN )12048(-V REFIN )12048(-V REFIN )204720480V(-V REFIN ) 20482048= -V REFINAC ConsiderationsDigital FeedthroughHigh-speed serial data at any of the digital input or output pins may couple through the DAC package and cause internal stray capacitance to appear at the DAC output as noise, even though CS is held high (see Typical Operating Characteristics ). This digital feedthrough is tested by hold-ing CS high, transmitting 555 hex from DIN to DOUT. Analog FeedthroughBecause of internal stray capacitance, higher frequency analog input signals may couple to the output as shown in the Analog Feedthrough vs. Frequency graph in the Typical Operating Characteristics . It is tested by holding CS high, setting the DAC code to all 0s, and sweeping REFIN.MAX531/MAX538/MAX539+5V , Low-Power, Voltage-Output,Serial 12-Bit DACs______________________________________________________________________________________13Figure 9. MAX531 Connected as Four-Quadrant Multiplier. The unused REFOUT is connected to V DD .Figure 10. Single-Supply OffsetM A X 531/M A X 538/M A X 539+5V , Low-Power, Voltage-Output,Serial 12-Bit DACs 14________________________________________________________________________________________Ordering Information (continued)*Dice are specified at T A = +25°C only.____Pin Configurations (continued)___________________Chip TopographyREFINDOUT( ) ARE FOR MAX531 ONLY.0.120" (3.048mm)0.080" (2.032mm)SCLK CSAGND(DGND)(REFOUT)(V SS )VOUTDD(CLR)TRANSISTOR COUNT: 922SUBSTRATE CONNECTED TO V DD±18 SO 0°C to +70°C MAX539BCSA ±18 SO-40°C to +85°CMAX539BESA±1/28 SO -40°C to +85°C MAX539AESA ±18 Plastic DIP -40°C to +85°C MAX539BEPA ±1/28 Plastic DIP -40°C to +85°C MAX539AEPA ±1Dice*0°C to +70°C MAX539BC/D ±1/28 SO 0°C to +70°C MAX539ACSA ±18 Plastic DIP 0°C to +70°C MAX539BCPA ±1/28 Plastic DIP 0°C to +70°C MAX539ACPA ±18 SO-40°C to +85°C MAX538BESA ±1/28 SO -40°C to +85°C MAX538AESA ±18 Plastic DIP -40°C to +85°C MAX538BEPA ±1/28 Plastic DIP -40°C to +85°C MAX538AEPA ±18 SO 0°C to +70°C MAX538BCSA ±1/28 SO 0°C to +70°C MAX538ACSA ±18 Plastic DIP 0°C to +70°C MAX538BCPA ±1/28 Plastic DIP 0°C to +70°C MAX538ACPA ±114 SO-40°C to +85°C MAX531BESD ±1/2±114 SO -40°C to +85°C MAX531AESD ±1/2ERROR (LSB)±114 Plastic DIP -40°C to +85°C MAX531BEPD 14 Plastic DIP -40°C to +85°C MAX531AEPD PIN-PACKAGE TEMP. RANGE PART Dice*0°C to +70°C MAX538BC/DMAX531/MAX538/MAX539+5V , Low-Power, Voltage-Output,Serial 12-Bit DACs______________________________________________________________________________________15________________________________________________________Package InformationMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.16__________________Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600©1997 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products.M A X 531/M A X 538/M A X 539+5V , Low-Power, Voltage-Output,Serial 12-Bit DACs__________________________________________Package Information (continued)。

CSD19538Q2 100V N沟道NexFET功率MOSFET数据手册说明书

D DDD G SP0108-01Product Folder Order Now Technical Documents Tools &SoftwareSupport &CommunityCSD19538Q2ZHCSF65A –JULY 2016–REVISED JANUARY 2017CSD19538Q2100V N 沟道NexFET™功率MOSFET1特性•超低Q g 和Q gd •低热阻•雪崩额定值•无铅•符合RoHS 标准•无卤素•小外形尺寸无引线(SON)2mm x 2mm 塑料封装2应用•以太网供电(PoE)•电源设备(PSE)•电机控制3说明这款100V 、49m Ω、采用2mm ×2mm SON 封装的NexFET™功率MOSFET 被设计成在功率转换应用中大大降低损耗。

顶视图产品概要T A =25°C 典型值单位V DS 漏源电压100V Q g 栅极电荷总量(10V) 4.3nC Q gd 栅极电荷（栅极到漏极）0.8nC R DS(on)漏源导通电阻V GS =6V 58m ΩV GS =10V49V GS(th)阈值电压3.2V器件信息(1)器件数量包装介质封装运输CSD19538Q230007英寸卷带SON2.00mm x 2.00mm塑料封装卷带封装CSD19538Q2T250(1)要了解所有可用封装，请见数据表末尾的可订购产品附录。

绝对最大额定值T A =25°C 值单位V DS 漏源电压100V V GS栅源电压±20VI D持续漏极电流（受封装限制）14.4A 持续漏极电流（受芯片限制），T C =25°C 时测得13.1持续漏极电流(1) 4.6I DM 脉冲漏极电流(2)34.4A P D功率耗散(1)2.5W 功率耗散，T C =25°C 20.2T J ，T stg 工作结温，储存温度-55至150°C E AS雪崩能量，单脉冲I D =12.6A ，L =0.1mH ，R G =25Ω8mJ (1)R θJA =50°C/W ，这是在一块厚度为0.06英寸环氧树脂(FR4)印刷电路板(PCB)上的1英寸2，2盎司铜焊盘上测得的典型值。

MASM32绝好资料

MASM32绝好资料Introduction to Assembler (2)MASM Reference (11)宏参考MACRO Reference (11)伪指令参考 (16)语法参考 (30)其它参考 (35)寄存器大全 (35)标志寄存器Processor Flags (35)80位数据寄存器Stack of80-bit Data Registers (36)Ascii字符表Ascii Characters (37)奔腾指令优化参考Pentium Optimisation (37)调用格式Calling Conventions (40)命令行工具Command Line Tools (41)Introduction to Assembler汇编概述直线内存模式FLAT Memory Model32位（二进制位，bit。

下同）Windows程序使用“直线内存模式”。

这样的程序实际只有一个段，包括程序的所有代码和数据，而且只能在386以上的INTEL处理器上运行。

早期的16位程序使用段和偏移来代表地址，每个段的大小不能超过64KB，而“直线内存模式”只有偏移，它的大小是4G，即0XFFFFFFFF，这种地址表示方式使汇编程序更易于开发。

在FLAT模式下，所有的段寄存器都自动设置成为同一个值，32位Windows程序中段/偏移形式的地址在不是必须的。

对于DOS程序员来说，32位Windows PE格式的应用程序好象是.COM程序一样，使用单一的段包括了代码和数据，只操作偏移地址，而不是用段/偏移地址。

直线内存模式时，应用程序在4G内存空间内所有的引用都是近程地址（NEAR code addressing）和近程数据（NEAR data addressing）。

GS和FS段寄存器在普通的FLAT模式应用程序中并不使用，一般是操作系统用于操作实例（used in instances）。

保护模式内存Protected Mode MemoryDOS是真实地址内存模式，这样应用程序可能改写操作系统的代码，而引起系统瘫痪。

MAX1978中文数据手册

用于Peltier模块的集成温度控制器概论MAX1978 / MAX1979是用于Peltier热电冷却器（TEC）模块的最小, 最安全, 最精确完整的单芯片温度控制器。

片上功率FET和热控制环路电路可最大限度地减少外部元件, 同时保持高效率。

可选择的500kHz / 1MHz开关频率和独特的纹波消除方案可优化元件尺寸和效率, 同时降低噪声。

内部MOSFET的开关速度经过优化, 可降低噪声和EMI。

超低漂移斩波放大器可保持±0.001°C的温度稳定性。

直接控制输出电流而不是电压, 以消除电流浪涌。

独立的加热和冷却电流和电压限制提供最高水平的TEC保护。

MAX1978采用单电源供电, 通过在两个同步降压调节器的输出之间偏置TEC, 提供双极性±3A输出。

真正的双极性操作控制温度, 在低负载电流下没有“死区”或其他非线性。

当设定点非常接近自然操作点时, 控制系统不会捕获, 其中仅需要少量的加热或冷却。

模拟控制信号精确设置TEC 电流。

MAX1979提供高达6A的单极性输出。

提供斩波稳定的仪表放大器和高精度积分放大器, 以创建比例积分（PI）或比例积分微分（PID）控制器。

仪表放大器可以连接外部NTC或PTC热敏电阻, 热电偶或半导体温度传感器。

提供模拟输出以监控TEC温度和电流。

此外, 单独的过热和欠温输出表明当TEC温度超出范围时。

片上电压基准为热敏电阻桥提供偏置。

MAX1978 / MAX1979采用薄型48引脚薄型QFN-EP 封装, 工作在-40°C至+ 85°C温度范围。

采用外露金属焊盘的耐热增强型QFN-EP封装可最大限度地降低工作结温。

评估套件可用于加速设计。

应用光纤激光模块典型工作电路出现在数据手册的最后。

WDM, DWDM激光二极管温度控制光纤网络设备EDFA光放大器电信光纤接口ATE特征♦尺寸最小, 最安全, 最精确完整的单芯片控制器♦片上功率MOSFET-无外部FET♦电路占用面积<0.93in2♦回路高度<3mm♦温度稳定性为0.001°C♦集成精密积分器和斩波稳定运算放大器♦精确, 独立的加热和冷却电流限制♦通过直接控制TEC电流消除浪涌♦可调节差分TEC电压限制♦低纹波和低噪声设计♦TEC电流监视器♦温度监控器♦过温和欠温警报♦双极性±3A输出电流（MAX1978）♦单极性+ 6A输出电流（MAX1979）订购信息* EP =裸焊盘。

MAX038中文Data Sheet

高频信号发生器_______________概述MAX038是一种只需极少外围电路就能实现高频、高精度输出三角波、锯齿波、正弦波、方波和脉冲波的精密高频函数发生器芯片。

内部提供的2.5V 基准电压和一个外接电阻和电容可以控制输出频率范围在0.1Hz 到20MHz 。

占空比可在较大的范围内由一个±2.3V的线性信号控制变化，便于进行脉冲宽度调制和产生锯齿波。

频率调整和频率扫描可以用同样的方式实现。

占空比和频率控制是独立的。

通过设置2个TTL 逻辑地址引脚合适的逻辑电平，能设定正弦波，方波或三角波的输出。

所有波形的输出都是峰-峰值为±2VP -P 的信号。

低阻抗输出能力可以达到±20mA。

____________________________性能o 频率调节范围：0.1Hz 到20MHzo 三角波, 锯齿波, 正弦波, 方波和脉冲波 o 频率和占空比独立可调 o 频率扫描范围：350：1 o 可控占空比：15%到85% o 低阻抗输出缓冲器： 0.1Ω o 低失真正弦波： 0.75% o 低温度漂移： 200ppm/°C______________型号信息TTL 逻辑地址引脚SYNC 从内部振荡器输出占空比固定为50%的信号，不受其它波占空比的影响，从而同步系统中其它振荡器。

内部振荡器允许被连接着相位检波器输入端（PDI ）的外部 TTL 时钟同步。

型号 MAX038CPP MAX038CWP MAX038C/D MAX038EPP MAX038EWP工作温度 0°C 到 +70°C 0°C 到 +70°C 0°C 到 +70°C -40°C 到 +85°C -40°C 到 +85°C引脚--封装 20 Plastic DIP 20 SO Dice* 20 Plastic DIP 20 SO.__________________应用精密函数信号发生器压控振荡器频率调制器*Contact factory for dice specifications.__________________引脚图脉宽调制器锁相环频率合成器FSK 发生器（正弦波和方波）________________________________________________________________ Maxim Integrated Products1For free samples & the latest literature: , or phone 1-800-998-8800. For small orders, phone 408-737-7600 ext. 3468MAX038高频信号发生器图1. 内部结构及基本工作电路_______________ 详细说明MAX038是一种高频函数信号发生器，它可以使用最少的外部元件而产生低失真正弦波，三角波，锯齿波，方波（脉冲波）。

max485esa中文资料

General DescriptionThe MAX481, MAX483, MAX485, MAX487–MAX491, andMAX1487 are low-power transceivers for RS-485 and RS-422 communication. Each part contains one driver and onereceiver. The MAX483, MAX487, MAX488, and MAX489feature reduced slew-rate drivers that minimize E MI andreduce reflections caused by improperly terminated cables,thus allowing error-free data transmission up to 250kbps.The driver slew rates of the MAX481, MAX485, MAX490,MAX491, and MAX1487 are not limited, allowing them totransmit up to 2.5Mbps.These transceivers draw between 120µA and 500µA ofsupply current when unloaded or fully loaded with disableddrivers. Additionally, the MAX481, MAX483, and MAX487have a low-current shutdown mode in which they consumeonly 0.1µA. All parts operate from a single 5V supply.Drivers are short-circuit current limited and are protectedagainst excessive power dissipation by thermal shutdowncircuitry that places the driver outputs into a high-imped-ance state. The receiver input has a fail-safe feature thatguarantees a logic-high output if the input is open circuit.The MAX487 and MAX1487 feature quarter-unit-loadreceiver input impedance, allowing up to 128 MAX487/MAX1487 transceivers on the bus. Full-duplex communi-cations are obtained using the MAX488–MAX491, whilethe MAX481, MAX483, MAX485, MAX487, and MAX1487are designed for half-duplex applications.________________________Applications Low-Power RS-485 Transceivers Low-Power RS-422 Transceivers Level Translators Transceivers for EMI-Sensitive Applications Industrial-Control Local Area Networks__Next Generation Device Features o For Fault-Tolerant Applications MAX3430: ±80V Fault-Protected, Fail-Safe, 1/4Unit Load, +3.3V, RS-485 Transceiver MAX3440E–MAX3444E: ±15kV ESD-Protected,±60V Fault-Protected, 10Mbps, Fail-Safe, RS-485/J1708 Transceivers o For Space-Constrained Applications MAX3460–MAX3464: +5V, Fail-Safe, 20Mbps,Profibus RS-485/RS-422 Transceivers MAX3362: +3.3V, High-Speed, RS-485/RS-422Transceiver in a SOT23 Package MAX3280E–MAX3284E: ±15kV ESD-Protected,52Mbps, +3V to +5.5V, SOT23, RS-485/RS-422,True Fail-Safe Receivers MAX3293/MAX3294/MAX3295: 20Mbps, +3.3V,SOT23, RS-485/RS-422 Transmitters o For Multiple Transceiver Applications MAX3030E–MAX3033E: ±15kV ESD-Protected,+3.3V, Quad RS-422 Transmitters o For Fail-Safe Applications MAX3080–MAX3089: Fail-Safe, High-Speed (10Mbps), Slew-Rate-Limited RS-485/RS-422Transceiverso For Low-Voltage ApplicationsMAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E: +3.3V Powered, ±15kVESD-Protected, 12Mbps, Slew-Rate-Limited,True RS-485/RS-422 Transceivers For pricing, delivery, and ordering information, please contact Maxim Direct at1-888-629-4642, or visit Maxim Integrated’s website at .______________________________________________________________Selection Table19-0122; Rev 10; 9/14PARTNUMBERHALF/FULL DUPLEX DATA RATE (Mbps) SLEW-RATE LIMITED LOW-POWER SHUTDOWN RECEIVER/DRIVER ENABLE QUIESCENT CURRENT (μA) NUMBER OF RECEIVERS ON BUS PIN COUNT MAX481Half 2.5No Yes Yes 300328MAX483Half 0.25Yes Yes Yes 120328MAX485Half 2.5No No Yes 300328MAX487Half 0.25Yes Yes Yes 1201288MAX488Full 0.25Yes No No 120328MAX489Full 0.25Yes No Yes 1203214MAX490Full 2.5No No No 300328MAX491Full 2.5No No Yes 3003214MAX1487 Half 2.5No No Yes 2301288Ordering Information appears at end of data sheet.找电子元器件上宇航军工MAX481/MAX483/MAX485/MAX487–MAX491/MAX1487Low-Power, Slew-Rate-LimitedRS-485/RS-422 TransceiversPackage Information For the latest package outline information and land patterns, go to . Note that a “+”, “#”, or “-”in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status.16Low-Power, Slew-Rate-Limited RS-485/RS-422 TransceiversMAX481/MAX483/MAX485/MAX487–MAX491/MAX1487Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance.Maxim Integrated 160 Rio Robles, San Jose, CA 95134 USA 1-408-601-100017©2014 Maxim Integrated Products, Inc.Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc.。

MAXIM MAX338 MAX339 数据手册

The MAX338/MAX339 are monolithic, CMOS analog multiplexers (muxes). The 8-channel MAX338 is designed to connect one of eight inputs to a common output by control of a 3-bit binary address. The dual, 4-channel MAX339 is designed to connect one of four inputs to a common output by control of a 2-bit binary address. Both devices can be used as either a mux or a demux. On-resistance is 400Ωmax, and the devices conduct current equally well in both directions.These muxes feature extremely low off leakages (less than 20pA at +25°C), and extremely low on-channel leakages (less than 50pA at +25°C). The new design offers guaranteed low charge injection (1.5pC typ) and electrostatic discharge (ESD) protection greater than 2000V, per method 3015.7. These improved muxes are pin-compatible upgrades for the industry-standard DG508A and DG509A. For similar Maxim devices with lower leakage and charge injection but higher on-resis-tance, see the MAX328 and MAX329.The MAX338/MAX339 operate from a single +4.5V to +30V supply or from dual supplies of ±4.5V to ±20V.All control inputs (whether address or enable) are TTL compatible (+0.8V to +2.4V) over the full specified tem-perature range and over the ±4.5V to ±18V supply range. These parts are fabricated with Maxim’s 44V sili-con-gate process.________________________ApplicationsData-Acquisition Systems Sample-and-Hold Circuits Test Equipment Heads-Up Displays Military RadiosCommunications Systems Guidance and Control SystemsPBX, PABX____________________________Features♦On-Resistance, <400Ωmax ♦Transition Time, <500ns ♦On-Resistance Match, <10Ω♦NO-Off Leakage Current, <20pA at +25°C ♦1.5pC Charge Injection♦Single-Supply Operation (+4.5V to +30V)Bipolar-Supply Operation (±4.5V to ±20V)♦Plug-In Upgrade for Industry-Standard DG508A/DG509A ♦Rail-to-Rail Signal Handling ♦TTL/CMOS-Logic Compatible♦ESD Protection >2000V, per Method 3015.7Ordering InformationMAX338/MAX3398-Channel/Dual 4-Channel,Low-Leakage, CMOS Analog Multiplexers________________________________________________________________Maxim Integrated Products 1_____________________Pin Configurations/Functional Diagrams/Truth Tables19-0272; Rev 3; 11/04Ordering Information continued at end of data sheet.*Contact factory for dice specifications.**Contact factory for availability.For pricing, delivery, and ordering information,please contact Maxim/Dallas Direct!at 1-888-629-4642, or visit Maxim’s website at .General DescriptionM A X 338/M A X 3398-Channel/Dual 4-Channel,Low-Leakage, CMOS Analog Multiplexers 2_______________________________________________________________________________________ABSOLUTE MAXIMUM RATINGSELECTRICAL CHARACTERISTICS—Dual Supplies(V+ = +15V, V- = -15V, GND = 0V, V AH = +2.4V, V AL = +0.8V, T A = T MIN to T MAX , unless otherwise noted.)Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.Voltage Referenced to V-V+............................................................................-0.3V, 44V GND.........................................................................-0.3V, 25V Digital Inputs, NO, COM (Note 1)...........(V- - 2V) to (V+ + 2V) or30mA (whichever occurs first)Continuous Current (any terminal)......................................30mA Peak Current, NO or COM(pulsed at 1ms, 10% duty cycle max)..........................100mAContinuous Power Dissipation (TA = +70°C)Plastic DIP (derate 10.53mW/°C above +70°C)..........842mW Narrow SO (derate 8.70mW/°C above +70°C)............696mW 16-Pin TQFN (derate 21.3mW/°C above +70°C).......1702mW CERDIP (derate 10.00mW/°C above +70°C)...............800mW Operating Temperature RangesMAX33_C__........................................................0°C to +70°C MAX33_E__......................................................-40°C to +85°C MAX33_MJE ..................................................-55°C to +125°C Storage Temperature Range.............................-65°C to +150°C Lead Temperature (soldering, 10sec).............................+300°CNote 1:Signals on NO, COM, EN, A0, A1, or A2 exceeding V+ or V- are clamped by internal diodes. Limit forward current to maximum current ratings.MAX338/MAX3398-Channel/Dual 4-Channel,Low-Leakage, CMOS Analog Multiplexers_______________________________________________________________________________________3ELECTRICAL CHARACTERISTICS—Dual Supplies (continued)(V+ = +15V, V- = -15V, GND = 0V, V AH = +2.4V, V AL = +0.8V, T A = T MIN to T MAX , unless otherwise noted.)M A X 338/M A X 3398-Channel/Dual 4-Channel,Low-Leakage, CMOS Analog Multiplexers 4_______________________________________________________________________________________ELECTRICAL CHARACTERISTICS—Single Supply(V+ = +12V, V- = 0V, GND = 0V, V AH = +2.4V, V AL = +0.8V, T A = T MIN to T MAX , unless otherwise noted.)Note 2:The algebraic convention where the most negative value is a minimum and the most positive value a maximum is used inthis data sheet.Note 3:Guaranteed by design.Note 4:ΔR ON = R ON(MAX)- R ON(MIN).Note 5:Leakage parameters are 100% tested at the maximum rated hot temperature and guaranteed by correlation at +25°C.Note 6:Worst-case isolation is on channel 4 because of its proximity to the drain pin. Off isolation = 20log V COM /V NO , whereV COM = output and V NO = input to off switch.MAX338/MAX3398-Channel/Dual 4-Channel,Low-Leakage, CMOS Analog Multiplexers_______________________________________________________________________________________5600ON-RESISTANCE vs. V COM(DUAL SUPPLIES)500010*******-2020-1515-1010-55400V COM (V)R O N (Ω)ON-RESISTANCE vs. V COM OVER TEMPERATURE (DUAL SUPPLIES)100200300-1515-1010-550400V COM (V)R O N (Ω)12001400ON-RESISTANCE vs. V COM(SINGLE SUPPLY)100002004006001520105800V COM (V)R O N (Ω)600700ON-RESISTANCE vs. V COM OVER TEMPERATURE (SINGLE SUPPLY)500010020030015105400V COM (V)R O N (Ω)30CHARGE INJECTION vs. V COM200-30-20-100-1515-1010-55010V COM (V)Q j (p C )40100.0001-55125OFF LEAKAGE vs. TEMPERATURE1TEMPERATURE (°C)O F F L E A K A G E (n A )250.010.001-35-15650.1100100045851055100.0001-55125ON LEAKAGE vs. TEMPERATURE1TEMPERATURE (°C)O N L E A K A G E (n A )250.010.001-35-15650.11001000458510551000.001-55125SUPPLY CURRENT vs. TEMPERATURE10TEMPERATURE (°C)I +, I - (μA )250.10.01-35-156514585105510006001000900800700TRANSITION TIME vs.POWER SUPPLIES5000100200300OR 10V(SINGLE)OR 5V(SINGLE)400SUPPLY VOLTAGE (V)t T R A N S (n S )__________________________________________Typical Operating Characteristics(T A = +25°C, unless otherwise noted.)__________Applications InformationOperation withSupply Voltages Other than 15VUsing supply voltages less than ±15V will reduce the analog signal range. The MAX338/MAX339 switches operate with ±4.5V to ±20V bipolar supplies or with a +4.5V to +30V single supply. Connect V- to GND when operating with a single supply. Both device types can also operate with unbalanced supplies such as +24V and -5V. The Typical Operating Characteristics graphs show typical on-resistance with 20V, 15V, 10V, and 5V supplies. (Switching times increase by a factor of two or more for operation at 5V.)Overvoltage ProtectionProper power-supply sequencing is recommended for all CMOS devices. Do not exceed the absolute maxi-mum ratings, because stresses beyond the listed rat-ings may cause permanent damage to the devices.Always sequence V+ on first, then V-, followed by the logic inputs NO and COM. If power-supply sequencing is not possible, add two small signal diodes in series with supply pins for overvoltage protection (Figure 1).Adding diodes reduces the analog signal range to 1V below V+ and 1V above V-, but does not affect the devices’ low switch resistance and low leakage charac-teristics. Device operation is unchanged, and the differ-ence between V+ and V- should not exceed 44V.M A X 338/M A X 3398-Channel/Dual 4-Channel,Low-Leakage, CMOS Analog Multiplexers 6_____________________________________________________________________________________________________________________________________________________Pin DescriptionFigure 1. Overvoltage Protection Using External Blocking DiodesMAX338/MAX3398-Channel/Dual 4-Channel,Low-Leakage, CMOS Analog Multiplexers_______________________________________________________________________________________7______________________________________________Test Circuits/Timing DiagramsFigure 2. Transition TimeM A X 338/M A X 3398-Channel/Dual 4-Channel,Low-Leakage, CMOS Analog Multiplexers 8________________________________________________________________________________________________________________________Test Circuits/Timing Diagrams (continued)Figure 5. Charge InjectionMAX338/MAX3398-Channel/Dual 4-Channel,Low-Leakage, CMOS Analog Multiplexers_______________________________________________________________________________________9_________________________________Test Circuits/Timing Diagrams (continued)Figure 6. Off-Isolation Figure 7. CrosstalkFigure 8. NO/COM CapacitanceM A X 338/M A X 3398-Channel/Dual 4-Channel,Low-Leakage, CMOS Analog Multiplexers 10______________________________________________________________________________________________Pin Configurations/Functional Diagrams/Truth Tables (continued)A2A1A0EN ON SWITCH X 00001111X 00110011X 01010101011111111None 12345678MAX338LOGIC “0” V AL ≤ 0.8V, LOGIC “1” V AH ≥ 2.4VA1A0EN ON SWITCH X 0011X 010101111None 1234MAX339LOGIC “0” V AL ≤ 0.8V, LOGIC “1” V AH ≥ 2.4VMAX338/MAX3398-Channel/Dual 4-Channel,Low-Leakage, CMOS Analog Multiplexers______________________________________________________________________________________11Ordering Information (continued)*Contact factory for dice specifications.**Contact factory for availability.Pin Configurations/Functional Diagrams/Truth Tables (continued)M A X 338/M A X 3398-Channel/Dual 4-Channel,Low-Leakage, CMOS Analog Multiplexers 12________________________________________________________________________________________________________________________________________________Chip TopographiesV+NO3EN 0.114"(2.89mm)0.078"(1.98mm)COM NO8NO5NO6N07A0A1A2GNDNO2 NO1 V-N.C.NO4V+NO3AEN0.114"(2.89mm)0.078"(1.98mm)COMA COMB NO1B NO2B N04BA0A1N.C.GNDNO2A NO1A V-NO3BNO4ATRANSISTOR COUNT: 224SUBSTRATE IS INTERNALLY CONNECTED TO V+Note:On Thin QFN packages connect exposed pad to V+.TRANSISTOR COUNT: 224SUBSTRATE IS INTERNALLY CONNECTED TO V+MAX338MAX339N.C. = NO INTERNAL CONNECTIONMAX338/MAX3398-Channel/Dual 4-Channel,Low-Leakage, CMOS Analog MultiplexersMa xim ca nnot a ssume responsibility for use of a ny circuitry other tha n circuitry entirely embodied in a Ma xim product. No circuit pa tent licenses a re implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________13©2004 Maxim Integrated ProductsPrinted USAis a registered trademark of Maxim Integrated Products.Package Information(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,go to /packages .)。

MAX31855中文手册

�� Maxim Integrated Products 2
*本数据资料中如有与Electrical Characteristics表中参数(最小值、典型值、最大值)不一致的引用，请以Electrical Characteristics表中的数据为准。
PACKAGE THERMAL CHARACTERISTICS (Note 1)
SO Junction-to-Ambient Thermal Resistance (BJA).........170NC/W Junction-to-Case Thermal Resistance (BJC)................40NC/W Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a fourlayer board. For detailed information on package thermal considerations, refer to /thermal-tutorial.
定购信息在数据资料的最后给出。
特性
应用
工业电器设备 HVAC 汽车
相关型号以及配合该器件使用的推荐产品，请参见：/ MAX31855.related
典型应用电路
VCC
0.1µF MAX31855 GND SO T+ TSCK CS MISO SCK SS MICROCONTROLLER
MAX31855J Thermocouple Temperature Gain and Offset Error (57.953FV/NC nominal sensitivity) (Note 4)

MAX809TD中文资料

COVER TAPECARRIER TAPEREELAS-SEMBLY TAPE GUARBAND CODELABELBOXFigure 8. Tape and reel packing method.MAX809/MAX810 3-pin microprocessor resetsSOT23-3: plastic small outline package; 3 leads; body width 1.5 mm1.351.21.00.250.500.250.220.083.002.701.701.500.550.352310.150.0510°0°MAX809/MAX810 3-pin microprocessor resetsSC70-3:plastic small outline package; 3 leads; body width 1.15 mm1.0 0.80.40.250.2250.102.11.90.40.1MAX809/MAX810 3-pin microprocessor resetsDefinitionsShort-form specification — The data in a short-form specification is extracted from a full data sheet with the same type number and title. For detailed information see the relevant data sheet or data handbook.Limiting values definition — Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 60134). Stress above one or more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation of the device at these or at any other conditions above those given in the Characteristics sections of the specification is not implied. Exposure to limiting values for extended periods may affect device reliability.Application information — Applications that are described herein for any of these products are for illustrative purposes only. Philips Semiconductors make no representation or warranty that such applications will be suitable for the specified use without further testing or modification.DisclaimersLife support — These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application.Right to make changes — Philips Semiconductors reserves the right to make changes in the products—including circuits, standard cells, and/or software—described or contained herein in order to improve design and/or performance. When the product is in full production (status ‘Production’), relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no license or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified.Contact informationFor additional information please visit.Fax: +31 40 27 24825For sales offices addresses send e-mail to:© Koninklijke Philips Electronics N.V. 2003All rights reserved. Printed in U.S.A.Date of release: 08-03Document order number:9397 750 11889。

comtrade99中文版

comtrade99中文版电力系统暂态数据交换（COMTRADE）共用格式1 范围本标准定义了用于含有从电力系统或电力系统模型得到的暂态波形和事件数据的文件格式。

标准用于存储在物理媒体上的文件——比如数字式硬盘或软盘。

它不是一个用于通过通信网络交换数据文件的标准。

该格式是为了提供一个用于交换数据的易于解释的格式，而不是为了利用专用格式为了竞争优势所依赖的数据编码和压缩所提供的经济性。

2 定义2.1 数据表示 Data Representation数据作为一系列二进制的位存储在文件中。

每个位可以是1或0。

位被组织在一个个由8个位构成的字节中。

当计算机读取一个文件的数据时，它把数据作为一系列的字节来读取。

2.1.1 二进制数据Binary Data一个字节中的8个位可以被组成256个不同的组合。

因而，它们可以用于表示从0到255的数字。

如果需要较大数字，可以使用几个字节来表示一个单个数字。

比如，2个字节（16位）可以表示从0到65535的数字。

当字节以这种方式被解释时，可得知它们为二进制数据。

几个不同的格式被同时用于以二进制形式存储数字数据。

2.1.2 ASCII（美国国家信息交换标准代码）数据ASCII （American National Standard Code for Information Interchange）Data它作为一个表示0到255的数字的替换物，可以用于表示255个不同的符号。

美国国家信息交换标准代码（ASCII）是一个列出等于8个二进制位的127种组合的符号的标准。

比如，字节01000001表示大写字母“A”，而01100001表示小写字母“a”。

它可以用127个不同的组合来表示键盘上所有的键以及许多其它特殊符号。

从8位格式得到的256个组合的剩余部分用于绘图和其它特殊应用字符。

为了表示ASCII格式的一个数字，该数的每一位要求一个字节。

2.2 必需的/非必需的 Critical/Non-Critical配置文件中的某些数据对再现整个数据不是绝对必要，而戌置文件中的某些变量对某一特殊应用也许无关。