DS75492中文资料

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四信F2924-D DS电力级DTU使用说明书

F2924-D/DS 使用说明书此说明书适用于下列型号产品：客户热线：400-8838-199电话：+86-592-6300320传真：+86-592-5912735网址：地址：厦门集美软件园三期A06栋11层F2924-D/DS 使用说明书文档版本密级V1.0.0产品名称：F2924-D/DS共30页型号产品类别F2924-D 电力级DTUF2924-DS电力级DTU(含加密芯片)文档修订记录日期版本说明作者2019-08-13V1.0.0初始版本CPYAdd：厦门市集美区软件园三期诚毅大街370号A06栋11层著作权声明本文档所载的所有材料或内容受版权法的保护，所有版权由厦门四信通信科技有限公司拥有，但注明引用其他方的内容除外。

未经四信公司书面许可，任何人不得将本文档上的任何内容以任何方式进行复制、经销、翻印、连接、传送等任何商业目的的使用，但对于非商业目的的、个人使用的下载或打印（条件是不得修改，且须保留该材料中的版权说明或其他所有权的说明）除外。

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Add：厦门市集美区软件园三期诚毅大街370号A06栋11层产品外形图注：不同型号配件和接口可能存在差异，具体以实物为准。

Add：厦门市集美区软件园三期诚毅大街370号A06栋11层目录第一章产品简介 (2)1.1产品概述 (2)1.2产品特点 (2)1.3产品规格 (3)第二章安装 (6)2.1概述 (6)2.2开箱 (6)2.3安装与电缆连接 (6)2.4电源说明 (9)2.5指示灯说明 (9)第三章参数设置 (11)3.1界面说明 (11)3.2配置选项说明 (12)3.2.1“本地串口设置”项： (12)3.2.2“本地串口2设置”项： (13)3.2.3“DTU工作模式设置”项：..............................................错误！未定义书签。

7549资料

PRELIMINARY
PIN Configuration (top view)
P14/AN4/KEY4 P15/AN5/KEY5 RESET P16/AN6/KEY6 P17/AN7/KEY7 P20/XOUT/XCOUT VSS P21/XIN/XCIN VCC CNVSS P00(LED0)/INT0 P01(LED1)/INT1
REJ03B0202-0200 Rev.2.00 Mar 05, 2007 • Serial interface............................................................ 8-bit × 1 (UART or clock synchronous) • A/D converter ............................ 10-bit resolution × 8-channel • Clock generating circuit ..................................... Built-in type (connect to external ceramic resonator or quartz-crystal oscillator, 32 kHz quartz-crystal oscillation available) • High-speed on-chip oscillator ............................ Typ. : 4 MHz • Low-speed on-chip oscillator .......................... Typ. : 250 kHz • Watchdog timer ...................................................... 16-bit × 1 • Power-on reset circuit.......................................... Built-in type • Low voltage detection circuit .............................. Built-in type • Power source voltage XIN oscillation frequency (at ceramic resonator, in double-speed mode) At 8 MHz ........................................ 4.5 to 5.5 V At 2 MHz ........................................ 2.4 to 5.5 V At 1 MHz ........................................ 2.2 to 5.5 V XIN oscillation frequency (at ceramic resonator, in high-speed mode) At 8 MHz ........................................ 4.0 to 5.5 V At 4 MHz ........................................ 2.4 to 5.5 V At 1 MHz ........................................ 1.8 to 5.5 V High-speed on-chip oscillator oscillation frequency At 4 MHz......................................... 4.0 to 5.5 V Low-speed on-chip oscillator oscillation frequency At 250 kHz (typ. value at VCC = 5V).... 1.8 to 5.5 V • Power dissipation ........................................................ 30 mW • Operating temperature range ............................... -20 to 85°C APPLICATION Office automation equipment, factory automation equipment, home electric appliances, consumer electronics, etc.

DS75451中文资料

DS75451/2/3Series Dual Peripheral DriversGeneral DescriptionThe DS7545X series of dual peripheral drivers is a family of versatile devices designed for use in systems that use TTL logic.Typical applications include high speed logic buffers,power drivers,relay drivers,lamp drivers,MOS drivers,bus drivers and memory drivers.The DS75451,DS75452and DS75453are dual peripheral AND,NAND and NOR drivers,respectively,(positive logic)with the output of the logic gates internally connected to the bases of the NPN output transistors.Featuresn 300mA output current capability n High voltage outputsn No output latch-up at 20V n High speed switching n Choice of logic functionn TTL compatible diode-clamped inputs n Standard supply voltagesnReplaces TI “A”and “B”seriesConnection Diagrams(Dual-In-Line and Metal Can Packages)DS005824-2*See (Note 5)and Appendix E regarding S.O.package power dissipationconstraints.Top ViewOrder Number DS75451M or DS75451NDS005824-3Top ViewOrder Number DS75452M or DS75452NSee NS Package Numbers M08A *or N08EDS005824-4*See (Note 5)and Appendix E regarding S.O.package power dissipation constraints.Top ViewOrder Number DS75453M or DS75453N See NS Package Numbers M08A *or N08EFebruary 2000DS75451/2/3Series Dual Peripheral Drivers©2000National Semiconductor CorporationDS005824Absolute Maximum Ratings (Note 1)If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/Distributors for availability and specifications.Supply Voltage,(V CC )(Note 2)7.0V Input Voltage5.5V Inter-Emitter Voltage (Note 3) 5.5V Output Voltage (Note 4)30V Output Current (Note 5)300mAMaximum Power (Note 5)Dissipation †at 25˚CMolded DIP Package 957mW SO Package632mWStorage Temperature Range−65˚C to +150˚CLead Temperature (Soldering,4sec.)260˚COperating ConditionsMin Max Units Supply Voltage,(V CC ) 4.75 5.25V Temperature,(T A )0+70˚C†Derate molded package 7.7mW/˚C above 25˚C,derate SO package 7.56mW/˚C above 25˚C.Electrical Characteristics(Notes 6,7)Symbol ParameterConditionsMin Typ Max UnitsV IH High-Level Input Voltage (Figure 7)2V V IL Low-Level Input Voltage 0.8V V I Input Clamp Voltage V CC =Min,I I =−12mA −1.5V V OLLow-Level Output VoltageV CC =Min,(Figure 7)V IL =0.8V I OL =100mA DS75451,DS754530.250.4V I OL =300mA DS75451,DS754530.50.7V V IH=2VI OL =100mA DS754520.250.4V I OL =300mA DS754520.50.7V I OHHigh-Level Output CurrentV CC =Min,(Figure 7)V OH =30V V IH =2VDS75451,DS75453100µA V IL =0.8VDS75452100µA I I Input Current at Maximum Input VoltageV CC =Max,V I =5.5V,(Figure 9)1mA I IH High-Level Input Current V CC =Max,V I =2.4V,(Figure 9)40µA I IL Low-Level Input Current V CC =Max,V I =0.4V,(Figure 8)−1−1.6mA I CCHSupply Current,Outputs HighV CC =Max,(Figure10)V I =5V DS75451711mA V I =0VDS754521114mA V I =5V DS75453811mA I CCLSupply Current,OutputsLowV CC =Max,(Figure10)V I =0V DS754515265mA V I =5VDS754525671mA V I =0V DS754535468mASwitching Characteristics(V CC =5V,T A =25˚C)Symbol ParameterConditionsMinTyp Max Units t PLHPropagation Delay Time,Low-to-High Level OutputC L =15pF,R L =50Ω,I O ≈200mA,(Figure 14)DS754511825ns DS754522635ns DS754531825ns t PHLPropagation Delay Time,High-to-Low Level OutputC L =15pF,R L =50Ω,I O ≈200mA,(Figure 14)DS754511825ns DS754522435ns DS754531625ns t TLH Transition Time,Low-to-High Level OutputC L =15pF,R L =50Ω,I O ≈200mA,(Figure 14)58ns t THLTransition Time,High-to-Low Level OutputC L =15pF,R L =50Ω,I O ≈200mA,(Figure 14)712nsD S 75451/2/3 2Switching Characteristics(Continued)Symbol Parameter Conditions Min Typ Max UnitsV OH High-Level Output Voltage afterSwitching V S=20V,I O≈300mA,(Figure15)V S−6.5mVNote1:“Absolute Maximum Ratings”are those values beyond which the safety of the device cannot be guaranteed.Except for“Operating Temperature Range”theyare not meant to imply that the devices should be operated at these limits.The table of“Electrical Characteristics”provides conditions for actual device operation.Note2:Voltage values are with respect to network ground terminal unless otherwise specified.Note3:The voltage between two emitters of a multiple-emitter transistor.Note4:The maximum voltage which should be applied to any output when it is in the“OFF”state.Note5:Both halves of these dual circuits may conduct rated current simultaneously;however,power dissipation averaged over a short time interval must fall withinthe continuous dissipation rating.Note6:Unless otherwise specified min/max limits apply across0˚C to+70˚C range.All typicals are given for V CC=+5V and T A=25˚C.Note7:All currents into device pins shown as positive,out of device pins as negative,all voltages referenced to ground unless otherwise noted.All values shownas max or min on absolute value basis.Truth Tables(H=high level,L=low level)DS75451A B YL L L(ON State)L H L(ON State)H L L(ON State)H H H(OFF State)DS75452A B YL L H(OFF State)L H H(OFF State)H L H(OFF State)H H L(ON State)DS75453A B YL L L(ON State)L H H(OFF State)H L H(OFF State)H H H(OFF State)DS75451/2/33Schematic DiagramsDS75451DS005824-11Resistor values shown are nominal.DS75452DS005824-12Resistor values shown are nominal.DS75453DS005824-13Resistor values shown are nominal.D S 75451/2/3 4DC Test CircuitsDS005824-15Both inputs is tested simultaneously.FIGURE1.V IH,V OLDS005824-16 Each input is tested separately.FIGURE2.V IL,V OHDS005824-17 Each input is tested separately.FIGURE3.V I,I ILDS005824-18Each input is tested separately.FIGURE4.I I,I IHDS005824-19Each input is tested separately.FIGURE5.I OSDS005824-20Both gates are tested simultaneously.FIGURE6.I CCH,I CCLDS75451/2/35DC Test Circuits(Continued)DS005824-21Circuit Input Under Test Other Input Output Apply Measure DS75451V IH V IH V OH I OL V IL V CC I OL V OL DS75452V IH V IH I OL V OL V IL V CC V OH I OH DS75453V IH Gnd V OH I OH V ILV ILI OLV OHFIGURE 7.V IH ,V IL ,I OH ,V OLDS005824-22Note A:Each input is tested separately.Note B :When testing DS75453input not under test is grounded.For all other circuits it is at 4.5V.FIGURE 8.V I ,V ILDS005824-23Each input is tested separately.FIGURE 9.I I ,I IHDS005824-24Both gates are tested simultaneously.FIGURE 10.I CCH ,I CCL for AND,NAND CircuitsDS005824-25Both gates are tested simultaneously.FIGURE 11.I CCH ,I CCL for OR,NOR CircuitsD S 75451/2/3 6AC Test Circuits and Switching Time WaveformsDS005824-26DS005824-27Note 1:The pulse generator has the following characteristics:PRR =1MHz,Z OUT ≈50Ω.Note 2:C L includes probe and jig capacitance.FIGURE 12.Propagation Delay Times,Each GateDS005824-28DS005824-29Note 1:The pulse generator has the following characteristics:duty cycle ≤1%,Z OUT ≈50Ω.Note 2:C L includes probe and jig capacitance.FIGURE 13.Switching Times,Each TransistorDS75451/2/37AC Test Circuits and Switching Time Waveforms(Continued)DS005824-30DS005824-31Note 1:The The pulse generator has the following characteristics:PRR =1.0MHz,Z OUT ≈50Ω.Note 2:C L includes probe and jig capacitance.FIGURE 14.Switching Times of Complete DriversD S 75451/2/3 8AC Test Circuits and Switching Time Waveforms(Continued)Typical Performance CharacteristicsDS005824-32DS005824-33Note 1:The pulse generator has the following characteristics:PRR =12.5kHz,Z OUT ≈50Ω.Note 2:C L includes probe and jig capacitance.FIGURE tch-UP Test of Complete DriversDS005824-37FIGURE 16.Transistor Collector-Emitter Saturation Voltage vs Collector CurrentDS75451/2/39Typical ApplicationsDS005824-46*Optional keep-alive resistors maintain off-state lamp current at ≈10%to reduce surge current.FIGURE 17.Dual Lamp or Relay DriverDS005824-47FIGURE plementary DriverDS005824-48FIGURE 19.TTL or DTL Positive Logic-Level DetectorD S 75451/2/310DS75451/2/3 Typical Applications(Continued)DS005824-49*The two input resistors must be adjusted for the level of MOS input.FIGURE20.MOS Negative Logic-Level Detector11Typical Applications(Continued)DS005824-50FIGURE 21.Logic Signal ComparatorDS005824-51*If inputs are unused,they should be connected to +5V through a 1k resistor.DS005824-52Low output occurs only when inputs are low simultaneously.FIGURE 22.In-Phase DetectorD S 75451/2/3 12Physical Dimensionsinches (millimeters)unless otherwise notedSO Package (M)Order Number DS75451M,DS75452M,DS75453MNS Package Number M08AMolded Dual-In-Line Package (N)Order Number DS75451N,DS75452N,DS75453NNS Package Number N08EDS75451/2/313NotesLIFE SUPPORT POLICYNATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT AND GENERAL COUNSEL OF NATIONAL SEMICONDUCTOR CORPORATION.As used herein:1.Life support devices or systems are devices or systems which,(a)are intended for surgical implant into the body,or (b)support or sustain life,and whose failure to perform when properly used in accordance with instructions for use provided in the labeling,can be reasonably expected to result in a significant injury to the user.2.A critical component is any component of a life support device or system whose failure to perform can be reasonably expected to cause the failure of the life support device or system,or to affect its safety or effectiveness.National Semiconductor Corporation AmericasTel:1-800-272-9959Fax:1-800-737-7018Email:support@National Semiconductor EuropeFax:+49(0)180-5308586Email:europe.support@Deutsch Tel:+49(0)6995086208English Tel:+44(0)8702402171Français Tel:+33(0)141918790National Semiconductor Asia Pacific Customer Response Group Tel:65-2544466Fax:65-2504466Email:ap.support@National Semiconductor Japan Ltd.Tel:81-3-5639-7560Fax:81-3-5639-7507D S 75451/2/3S e r i e s D u a l P e r i p h e r a l D r i v e r sNational does not assume any responsibility for use of any circuitry described,no circuit patent licenses are implied and National reserves the right at any time without notice to change said circuitry and specifications.。

MM74C927中文资料

TL F 5919MM74C925 MM74C926 MM74C927 MM74C9284-Digit Counters with Multiplexed 7-Segment Output DriversMarch 1988MM74C925 MM74C926 MM74C927 MM74C9284-Digit Counters with Multiplexed 7-Segment Output DriversGeneral DescriptionThese CMOS counters consist of a 4-digit counter an inter-nal output latch NPN output sourcing drivers for a 7-seg-ment display and an internal multiplexing circuitry with four multiplexing outputs The multiplexing circuit has its own free-running oscillator and requires no external clock The counters advance on negative edge of clock A high signal on the Reset input will reset the counter to zero and reset the carry-out low A low signal on the Latch Enable input will latch the number in the counters into the internal output latches A high signal on Display Select input will select the number in the counter to be displayed a low level signal on the Display Select will select the number in the output latch to be displayedThe MM74C925is a 4-decade counter and has Latch En-able Clock and Reset inputsThe MM74C926is like the MM74C925except that it has a display select and a carry-out used for cascading counters The carry-out signal goes high at 6000 goes back low at 0000The MM74C927is like the MM74C926except the second most significant digit divides by 6rather than 10 Thus if the clock input frequency is 10Hz the display would read tenths of seconds and minutes (i e 9 59 9)The MM74C928is like the MM74C926except the most sig-nificant digit divides by 2rather than 10and the carry-out isan overflow indicator which is high at 2000 and it goes back low only when the counter is reset Thus this is a 3 -digit counterFeaturesY Wide supply voltage range 3V to 6VY Guaranteed noise margin 1VY High noise immunity0 45V CC (typ )YHigh segment sourcing current40mAV CC b 1 6V V CC e 5VYInternal multiplexing circuitryDesign ConsiderationsSegment resistors are desirable to minimize power dissipa-tion and chip heating The DS75492serves as a good digit driver when it is desired to drive bright displays When using this driver with a 5V supply at room temperature the display can be driven without segment resistors to full illumination The user must use caution in this mode however to prevent overheating of the device by using too high a supply voltage or by operating at high ambient temperaturesThe input protection circuitry consists of a series resistor and a diode to ground Thus input signals exceeding V CC will not be clamped This input signal should not be allowed to exceed 15VConnection DiagramsDual-In-Line PackageTL F 5919–1Top ViewOrder Number MM74C925Dual-In-Line PackageTL F 5919–2Top ViewOrder Number MM74C926 MM74C927or MM74C928C 1995National Semiconductor Corporation RRD-B30M105 Printed in U S AAbsolute Maximum Ratings(Note1)If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Voltage at Any Output Pin GND b0 3V to V CC a0 3V Voltage at Any Input Pin GND b0 3V to a15V Operating TemperatureRange(T A)b40 C to a85 C Storage Temperature Range b65 C to a150 C Power Dissipation(P D)Refer to P D(MAX)vs T A Graph Operating V CC Range3V to6V V CC6 5V Lead Temperature(Soldering 10seconds)260 CDC Electrical Characteristics Min Max limits apply at b40 C s T j s a85 C unless otherwise notedSymbol Parameter Conditions Min Typ Max Units CMOS TO CMOSV IN(1)Logical‘‘1’’Input Voltage V CC e5V3 5V V IN(0)Logical‘‘0’’Input Voltage V CC e5V1 5V V OUT(1)Logical‘‘1’’Output Voltage V CC e5V I O e b10m A(Carry-Out and Digit Output4 5VOnly)V OUT(0)Logical‘‘0’’Output Voltage V CC e5V I O e10m A0 5V I IN(1)Logical‘‘1’’Input Current V CC e5V V IN e15V0 0051m A I IN(0)Logical‘‘0’’Input Current V CC e5V V IN e0V b1b0 005m A I CC Supply Current V CC e5V Outputs Open Circuit201000m AV IN e0V or5VCMOS LPTTL INTERFACEV IN(1)Logical‘‘1’’Input Voltage V CC e4 75V V CC b2V V IN(0)Logical‘‘0’’Input Voltage V CC e4 75V0 8V V OUT(1)Logical‘‘1’’Output Voltage V CC e4 75V(Carry-Out and Digit I O e b360m A2 4VOutput Only)V OUT(0)Logical‘‘0’’Output Voltage V CC e4 75V I O e360m A0 4V OUTPUT DRIVEV OUT Output Voltage(Segment I OUT e b65mA V CC e5V T j e25 C V CC b2V CC b1 3VSourcing Output)I OUT e b40mA V CC e5VT j e100 C V CC b1 6V CC b1 2V T j e150 C V CC b2V CC b1 4VR ON Output Resistance(Segment I OUT e b65mA V CC e5V T j e25 C2032XSourcing Output)I OUT e b40mA V CC e5VT j e100 C3040X T j e150 C3550XOutput Resistance(Segment0 60 8% C Output)Temperature CoefficientI SOURCE Output Source Current V CC e4 75V V OUT e1 75V T j e150 C b1b2mA (Digit Output)I SOURCE Output Source Current V CC e5V V OUT e0V T j e25 C b1 75b3 3mA(Carry-Out)I SINK Output Sink Current V CC e5V V OUT e V CC T j e25 C1 753 6mA(All Outputs)i jA Thermal Resistance MM74C925(Note4)75100 C WMM74C926 MM74C927 MM74C9287090 C W Note1 ‘‘Absolute Maximum Ratings’’are those values beyond which the safety of the device cannot be guaranteed Except for‘‘Operating Temperature Range’’they are not meant to imply that the devices should be operated at these limits The table of‘‘Electrical Characteristics’’provides conditions for actual device operationNote2 Capacitance is guaranteed by periodic testingNote3 C PD determines the no load AC power consumption of any CMOS device For complete explanation see54C 74C Family Characteristics application note AN-90Note4 i jA measured in free-air with device soldered into printed circuit board2AC Electrical Characteristics T A e 25 C C L e 50pF unless otherwise notedSymbol ParameterConditionsMin Typ Max Units f MAX Maximum Clock Frequency V CC e 5VT j e 25 C 24MHz Square Wave Clock T j e 100 C1 53MHzt r t f Maximum Clock Rise or Fall Time V CC e 5V 15m s t WR Reset Pulse Width V CC e 5V T j e 25 C 250100ns T j e 100 C 320125ns t WLE Latch Enable Pulse WidthV CC e 5V T j e 25 C 250100ns T j e 100 C 320125ns t SET(CK LE)Clock to Latch Enable Set-Up Time V CC e 5V T j e 25 C 25001250ns T j e 100 C 32001600ns t LR Latch Enable to Reset Wait Time V CC e 5V T j e 25 C 0b 100ns T j e 100 C 0b 100ns t SET(R LE)Reset to Latch Enable Set-Up Time V CC e 5V T j e 25 C 320160ns T j e 100 C400200ns f MUX Multiplexing Output Frequency V CC e 5V 1000Hz C INInput CapacitanceAny Input (Note 2)5pFAC Parameters are guaranteed by DC correlated testingFunctional DescriptionResetAsynchronous active highDisplay Select High displays output of counter Low displays output of latch Latch Enable High flow through condition Low latch condition ClockNegative edge sensitiveSegment Output Current sourcing with 40mA V OUT eV CC b 1 6V (typ )Also sink capability e 2LTTL loadsDigit Output Current sourcing with 1mA V OUT e1 75V Also sink capability e 2LTTL loadsCarry-Out 2LTTL loads See carry-out waveformsTypical Performance Characteristicsvs Output VoltageTypical Segment Currentvs Ambient TemperatureMaximum Power Dissipation Resistor ValueCurrent vs Segment Typical Average Segment TL F 5919–3Note V D e Voltage across digit driver3Logic and Block DiagramsMM74C925TL F 5919–4MM74C926TL F 5919–5MM74C927TL F 5919–6MM74C928TL F 5919–74Logic and Block Diagrams(Continued)Segment Output DriverTL F 5919–8Input ProtectionTL F 5919–9 Common Cathode LED DisplayTL F 5919–10Segment IdentificationTL F 5919–11 Switching Time WaveformsInput WaveformsTL F 5919–12Multiplexing Output WaveformsTL F 5919–13T e1 f MUX5Switching Time Waveforms(Continued)Carry-Out WaveformsTL F 5919–14 Physical Dimensions inches(millimeters)Ceramic Dual-In-Line Package(J)Order Number MM74C925JNS Package Number J16A6Physical Dimensions inches(millimeters)(Continued)Ceramic Dual-In-Line Package(J)Order Number MM74C926J MM74C927J or MM74C928JNS Package Number J18AMolded Dual-In-Line Package(N)Order Number MM74C925NNS Package Number N16E7M M 74C 925 M M 74C 926 M M 74C 927 M M 74C 9284-D i g i t C o u n t e r s w i t h M u l t i p l e x e d 7-S e g m e n t O u t p u t D r i v e r sPhysical Dimensions inches (millimeters)(Continued)Molded Dual-In-Line Package (N)Order Number MM74C926N MM74C927N or MM74C928NNS Package Number N18ALIFE SUPPORT POLICYNATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or 2 A critical component is any component of a life systems which (a)are intended for surgical implant support device or system whose failure to perform can into the body or (b)support or sustain life and whose be reasonably expected to cause the failure of the life failure to perform when properly used in accordance support device or system or to affect its safety or with instructions for use provided in the labeling can effectivenessbe reasonably expected to result in a significant injury to the userNational Semiconductor National Semiconductor National Semiconductor National Semiconductor CorporationEuropeHong Kong LtdJapan Ltd1111West Bardin RoadFax (a 49)0-180-530858613th Floor Straight Block Tel 81-043-299-2309。

ds 中文资料

电源控制：
VCC1 可提供单电源控制也可以用来作为备用电源，VCC2 为主电源。在主电源关闭的情况下，也能保持时钟的连续运行。DS1302 由 Vcc1 或 Vcc2 两者中的较大者供电。当 Vcc2 大于 Vcc1＋0.2V 时，Vcc2 给 DS1302 供电。当 Vcc2 小于 Vcc1 时，DS1302 由 Vcc1 供电。
数据输入：
经过 8 个时钟周期的控制字节的输入，一个字节的输入将在下 8 个时钟周期的上升沿完成，数据传输从字节最低位开始。
数据输出：
经过 8 个时钟周期的控制读指令的输入，控制指令串行输入后，一个字节的数据将在下个 8 个时钟周期的下降沿被输出，注意第一位输出是在最后一位控制指令所在脉冲的下降沿被输出，要求 RST 保持位高电平。
1. 可通过 Vcc1 进行涓流充电 2. 双重电源补给 3. 备用电源可采用电池或者超级电容(0.1F 以上)，可以用老式电脑主板上的 3.6V 充电电池。如果断电时间较短(几小时或几天)时，就可以用漏电较小的普通电解电容器代替。100 μ F 就可以保证 1 小时的正常走时。DS1302 在第一次加电后，必须进行初始化操作。初始化后就可以按Hale Waihona Puke 常方法调整时间。1 / 10
功能特色：
时钟计数功能，可以对秒、分钟、小时、月、星期、年的计数。年计数可达到 2100 年。
有 31*8 位的额外数据暂存寄存器最少 I/O 引脚传输，通过三引脚控制工作电压：2.0-5.5V 工作电流小于 320 纳安（2.0V）读写时钟寄存器或内部 RAM（31*8 位的额外数据暂存寄存）可以采用单字节模式和突发模式 8-pin DIP 封装或 8-pin SOICs 兼容 TTL （5.0V）可选的工业级别，工作温度-40 – 85 摄氏度兼容 DS1202 较 DS1202 增加的功能：

DS92LV1021资料

元器件交易网
DS92LV1021 and DS92LV1210 16-40 MHz 10 Bit Bus LVDS Serializer and Deserializer
December 2002
DS92LV1021 and DS92LV1210 16-40 MHz 10 Bit Bus LVDS Serializer and Deserializer
Control of the sync pins is left to the user. A feedback loop between the LOCK pin is one recommendation. Another option is that one or both of the Serializer SYNC inputs are asserted for at least 1024 cycles of TCLK to initiate transmission of SYNC patterns. The Serializer will continue to send SYNC patterns after the minimum of 1024 if either of the SYNC inputs remain high. When the Deserializer detects edge transitions at the Bus LVDS input it will attempt to lock to the embedded clock information. When the Deserializer locks to the Bus LVDS clock, the LOCK output will go low. When LOCK is low the Deserializer outputs represent incoming Bus LVDS data.

DS75492MX中文资料

TL F 5830DS75491MOS-to-LED Quad Segment Driver DS75492MOS-to-LED Hex Digit DriverFebruary 1995DS75491MOS-to-LED Quad Segment Driver DS75492MOS-to-LED Hex Digit DriverGeneral DescriptionThe DS75491and DS75492are interface circuits designed to be used in conjunction with MOS integrated circuits and common-cathode LEDs in serially addressed multi-digit dis-plays The number of drivers required for this time-multi-plexed system is minimized as a result of the segment-ad-dress-and-digit-scan method of LED driveFeaturesY 50mA source or sink capability per driver (DS75491)Y 250mA sink capability per driver (DS75492)Y MOS compatability (low input current)Y Low standby powerYHigh-gain Darlington circuitsSchematic and Connection DiagramsDS75491(each driver)TL F 5830–1DS75492(each driver)TL F 5830–2DS75491Dual-In-Line Package TL F 5830–3Top ViewDS75492Dual-In-Line PackageTL F 5830–4Top ViewOrder Number DS75491N DS75492M or DS75492NSee NS Package Number M14A or N14AC 1995National Semiconductor Corporation RRD-B30M105 Printed in U S AAbsolute Maximum Ratings(Note1)If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specificationsDS75491DS75492 Input Voltage Range(Note4)b5V to V SS Collector Output Voltage(Note5)10V10V Collector Output to Input Voltage10V10V Emitter to Ground Voltage(V I t5V)10VEmitter to Input Voltage5VVoltage at V SS Terminal with Respectto any Other Device Terminal10V10V Collector Output CurrentEach Collector Output50mA250mA All Collector Outputs200mA600mADS75491DS75492 Continuous Total Dissipation600mW600mW Operating Temperature Range0 C to a70 C Storage Temperature Range b65 C to a150 C Lead Temp (Soldering 10sec)300 C300 C Maximum Power Dissipationat25 CMolded Package1207mW 1280mW Derate molded package9 66mW C above25 CDerate molded package10 24mW C above25 CElectrical Characteristics V SS e10V(Notes2and3)Symbol Parameter Conditions Min Typ Max Units DS75491V CE ON‘‘ON’’State Collector Emitter Voltage Input e8 5V through1k X T A e25 C0 91 2VV E e5V I C e50mA TA e0–70 C1 5V I C OFF‘‘OFF’’State Collector Current V C e10V I IN e40m A100m AV E e0V VIN e0 7V100m A I I Input Current at Maximum Input Voltage V IN e10V V E e0V I C e20mA2 23 3mA I E Emitter Reverse Current V IN e0V V E e5V I C e0mA100m A I SS Current Into V SS Terminal1mA DS75492V OL Low Level Output Voltage Input e6 5V through1k X T A e25 C0 91 2VI OUT e250mA TA e0–70 C1 5V I OH High Level Output Current V OH e10V I IN e40m A200m AV IN e0 5V200m A I I Input Current at Maximum Input Voltage V IN e10V I OL e20mA2 23 3mA I SS Current Into V SS Terminal1mA Switching Characteristics V SS e7 5V T A e25 CSymbol Parameter Conditions Min Typ Max Units DS75491t PLH Propagation Delay Time Low-to-High Level Output(Collector)V IH e4 5V V E e0V 100nst PHL Propagation Delay Time High-to-Low Level Output(Collector)R L e200X C L e15pF20nsDS75492t PLH Propagation Delay Time Low-to-High Level Output V IH e7 5V R L e39X 300nst PHL Propagation Delay Time High-to-Low Level Output C L e15pF30nsNote1 ‘‘Absolute Maximum Ratings’’are those values beyond which the safety of the device cannot be guaranteed Except for‘‘Operating Temperature Range’’they are not meant to imply that the devices should be operated at these limits The table of‘‘Electrical Characteristics’’provides conditions for actual device operationNote2 Unless otherwise specified min max limits apply across the0 C to a70 C temperature range for the DS75491and DS75492Note3 All currents into device pins shown as positive out of device pins as negative all voltages referenced to ground unless otherwise noted All values shown as max or min on absolute value basisNote4 The input is the only device terminal which may be negative with respect to groundNote5 Voltage values are with respect to network ground terminal unless otherwise noted2AC Test Circuits and Switching Time WaveformsDS75491TL F 5830–5DS75492TL F 5830–6TL F 5830–7Note 1 The pulse generator has the following characteristics Z OUT e 50X PRR e 100kHz t W e 1m s Note 2 C L includes probe and jig capacitancePhysical Dimensions inches (millimeters)14-Lead (0 150 Wide)Molded Small Outline Package JEDECOrder Number DS75492M NS Package Number M14A3D S 75491M O S -t o -LE D Q u a d S e g m e n t D r i v e r D S 75492M O S -t o -L E D H e x D i g i t D r i v e rPhysical Dimensions inches (millimeters)(Continued)Molded Dual-In-Line Package (N)Order Number DS75491N or DS75492NNS Package Number N14ALIFE SUPPORT POLICYNATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or 2 A critical component is any component of a life systems which (a)are intended for surgical implant support device or system whose failure to perform can into the body or (b)support or sustain life and whose be reasonably expected to cause the failure of the life failure to perform when properly used in accordance support device or system or to affect its safety or with instructions for use provided in the labeling can effectivenessbe reasonably expected to result in a significant injury to the userNational Semiconductor National Semiconductor National Semiconductor National Semiconductor CorporationEuropeHong Kong LtdJapan Ltd1111West Bardin RoadFax (a 49)0-180-530858613th Floor Straight Block Tel 81-043-299-2309。

FPGA可编程逻辑器件芯片XCKU115-2FLVF1924I中文规格书

SummaryThe Xilinx® Kintex® UltraScale™ FPGAs are available in -3, -2, -1, and -1L speed grades, with -3 having the highest performance. The -1L devices can operate at either of two V CCINT voltages, 0.95V and 0.90V and are screened for lower maximum static power. When operated at V CCINT = 0.95V, the speed specification of a -1L device is the same as the -1 speed grade. When operated at V CCINT = 0.90V, the -1L performance and static and dynamic power is reduced.DC and AC characteristics are specified in commercial, extended, industrial, and military temperature ranges. Except the operating temperature range or unless otherwise noted, all the DC and AC electrical parameters are the same for a particular speed grade (that is, the timing characteristics of a -1 speed grade industrial device are the same as for a -1 speed grade commercial device). However, only selected speed grades and/or devices are available in each temperature range.All supply voltage and junction temperature specifications are representative of worst-case conditions. The parameters included are common to popular designs and typical applications.This data sheet, part of an overall set of documentation on the UltraScale architecture-based devices, is available on the Xilinx.DC CharacteristicsKintex UltraScale FPGAs Data Sheet:DC and AC Switching CharacteristicsDS892 (v1.19) September 22, 2020Product SpecificationTable 1:Absolute Maximum Ratings (1)Symbol Description Min Max UnitsFPGA LogicV CCINT Internal supply voltage–0.500 1.100V V CCINT_IO (2)Internal supply voltage for the I/O banks –0.500 1.100V V CCAUX Auxiliary supply voltage–0.500 2.000V V CCBRAM Supply voltage for the block RAM memories –0.500 1.100V V CCOOutput drivers supply voltage for HR I/O banks –0.500 3.400V Output drivers supply voltage for HP I/O banks –0.500 2.000V V CCAUX_IO (3)Auxiliary supply voltage for the I/O banks –0.500 2.000V V REFInput reference voltage–0.500 2.000V V IN (4)(5)(6)I/O input voltage for HR I/O banks–0.400V CCO +0.550V I/O input voltage for HP I/O banks–0.550V CCO +0.550V I/O input voltage (when V CCO = 3.3V) for V REF and differential I/O standards except TMDS_33(7)–0.4002.625VDC Input and Output LevelsValues for V IL and V IH are recommended input voltages. Values for I OL and I OH are guaranteed over the recommended operating conditions at the V OL and V OH test points. Only selected standards are tested. These are chosen to ensure that all standards meet their specifications. The selected standards are tested at a minimum V CCO with the respective V OL and V OH voltage levels shown. Other standards are sample tested.Table 9:SelectIO DC Input and Output Levels For HR I/O Banks(1)(2)I/O StandardV IL V IH V OL V OH I OL I OH V, Min V, Max V, Min V, Max V, Max V, Min mA mAHSTL_I–0.300V REF–0.100V REF+0.100V CCO+0.3000.400V CCO–0.4008.0–8.0 HSTL_I_18–0.300V REF–0.100V REF+0.100V CCO+0.3000.400V CCO–0.4008.0–8.0 HSTL_II–0.300V REF–0.100V REF+0.100V CCO+0.3000.400V CCO–0.40016.0–16.0 HSTL_II_18–0.300V REF–0.100V REF+0.100V CCO+0.3000.400V CCO–0.40016.0–16.0 HSUL_12–0.300V REF–0.130V REF+0.130V CCO+0.30020% V CCO80% V CCO0.1–0.1 LVCMOS12–0.30035% V CCO65% V CCO V CCO+0.3000.400V CCO–0.400Note3Note3 LVCMOS15–0.30035% V CCO65% V CCO V CCO+0.3000.450V CCO–0.450Note4Note4 LVCMOS18–0.30035% V CCO65% V CCO V CCO+0.3000.450V CCO–0.450Note4Note4 LVCMOS25–0.3000.700 1.700V CCO+0.3000.400V CCO–0.400Note4Note4 LVCMOS33–0.3000.800 2.000 3.4000.400V CCO–0.400Note4Note4 LVTTL–0.3000.800 2.000 3.4000.400 2.400Note4Note4 SSTL12–0.300V REF–0.100V REF+0.100V CCO+0.300V CCO/2–0.150V CCO/2+0.15014.25–14.25 SSTL135–0.300V REF–0.090V REF+0.090V CCO+0.300V CCO/2–0.150V CCO/2+0.15013.0–13.0 SSTL135_R–0.300V REF–0.090V REF+0.090V CCO+0.300V CCO/2–0.150V CCO/2+0.1508.9–8.9 SSTL15–0.300V REF–0.100V REF+0.100V CCO+0.300V CCO/2–0.175V CCO/2+0.17513.0–13.0 SSTL15_R–0.300V REF–0.100V REF+0.100V CCO+0.300V CCO/2–0.175V CCO/2+0.1758.9–8.9 SSTL18_I–0.300V REF–0.125V REF+0.125V CCO+0.300V CCO/2–0.470V CCO/2+0.4708.0–8.0 SSTL18_II–0.300V REF–0.125V REF+0.125V CCO+0.300V CCO/2–0.600V CCO/2+0.60013.4–13.4Table 10:SelectIO DC Input and Output Levels for HP I/O Banks(1)(2)(3)I/O StandardV IL V IH V OL V OH I OL I OH V, Min V, Max V, Min V, Max V, Max V, Min mA mAHSTL_I–0.300V REF–0.100V REF+0.100V CCO+0.3000.400V CCO–0.400 5.8–5.8 HSTL_I_12–0.300V REF–0.080V REF+0.080V CCO+0.30025% V CCO75% V CCO 4.1–4.1 HSTL_I_18–0.300V REF–0.100V REF+0.100V CCO+0.3000.400V CCO–0.400 6.2–6.2 HSUL_12–0.300V REF–0.130V REF+0.130V CCO+0.30020% V CCO80% V CCO0.1–0.1 LVCMOS12–0.30035% V CCO65% V CCO V CCO+0.3000.400V CCO–0.400Note4Note4 LVCMOS15–0.30035% V CCO65% V CCO V CCO+0.3000.450V CCO–0.450Note5Note5 LVCMOS18–0.30035% V CCO65% V CCO V CCO+0.3000.450V CCO–0.450Note5Note5 LVDCI_15–0.30035% V CCO65% V CCO V CCO+0.3000.450V CCO–0.4507.0–7.0 LVDCI_18–0.30035% V CCO65% V CCO V CCO+0.3000.450V CCO–0.4507.0–7.0 SSTL12–0.300V REF–0.100V REF+0.100V CCO+0.300V CCO/2–0.150V CCO/2+0.1508.0–8.0 SSTL135–0.300V REF–0.090V REF+0.090V CCO+0.300V CCO/2–0.150V CCO/2+0.1509.0–9.0 SSTL15–0.300V REF–0.100V REF+0.100V CCO+0.300V CCO/2–0.175V CCO/2+0.17510.0–10.0 SSTL18_I–0.300V REF–0.125V REF+0.125V CCO+0.300V CCO/2–0.470V CCO/2+0.4707.0–7.0Production Silicon and Software StatusIn some cases, a particular family member (and speed grade) is released to production before a speed specification is released with the correct label (Advance, Preliminary, Production). Any labeling discrepancies are corrected in subsequent speed specification releases.Table22 lists the production released Kintex UltraScale FPGAs, speed grade, and the minimum corresponding supported speed specification version and Vivado software revisions. The Vivado software and speed specifications listed are the minimum releases required for production. All subsequent releases of software and speed specifications are valid.Table 22:Kintex UltraScale FPGAs Production Software and Speed Specification Release(1)DeviceSpeed Grade, Temperature Ranges, and V CCINT Operating Voltages1.0V0.95V0.90V -3E-2E, -2I-1C, -1I-1M-1LI-1LI(3)XCKU025(2)N/A Vivado Tools 2015.3 v1.23N/A N/A N/AXCKU035(2)Vivado Tools 2015.2.1v1.23 for FBVA676 andFFVA1156 packagesVivado Tools 2015.1 v1.23 forFBVA676 and FFVA1156 packages N/A Vivado Tools 2015.3 v1.23 Vivado Tools 2015.3 v1.23 for FBVA900N/AVivado Tools 2015.4 v1.23 for SFVA784N/A Vivado Tools 2015.4 v1.23 forSFVA784XCKU040(2)Vivado Tools 2015.2.1v1.23 for FBVA676 andFFVA1156 packagesVivado Tools 2015.1 v1.23 forFBVA676 and FFVA1156 packages N/A Vivado Tools 2015.3 v1.23 Vivado Tools 2015.3 v1.23 for FBVA900N/AVivado Tools 2015.4 v1.23 for SFVA784N/A Vivado Tools 2015.4 v1.23 forSFVA784XCKU060(2)Vivado Tools 2015.4 v1.23Vivado Tools 2015.2 v1.23N/A Vivado Tools2015.3 v1.23Vivado Tools 2015.4 v1.23XCKU085(2)Vivado Tools 2015.4 v1.24Vivado Tools 2015.3 v1.24N/A Vivado Tools 2016.1 v1.24 XCKU095N/A Vivado Tools 2015.3 v1.24N/A N/A N/A XCKU115(2)Vivado Tools 2015.4 v1.24Vivado Tools 2015.2.1 v1.24N/A Vivado Tools 2016.1 v1.24 XQKU040N/A Vivado Tools 2016.4 v1.23N/A N/A XQKU060N/A Vivado Tools 2016.4 v1.23N/A N/A XQKU095N/A Vivado Tools 2016.4 v1.24N/A N/A XQKU115N/A Vivado Tools 2016.4 v1.24N/A N/A N/A Notes:1.For designs developed using Vivado tools prior to 2016.4, see the design advisory answer record AR68169: DesignAdvisory for Kintex UltraScale FPGAs and Virtex UltraScale FPGAs—New minimum production speed specification version (Speed File) required for all designs.2.Designs with these devices that use the dedicated System Monitor I2C (I2C_SCL and I2C_SDA) or PCIe reset (PERSTN0or PERSTN1) I/O where the bank 65 V CCO=3.3V must use Vivado Design Suite 2015.4 or later.3.The lowest power -1L devices, where V CCINT=0.90V, are listed in the Vivado Design Suite as -1LV.LVDS RX SDR (RX_BITSLICE 1:2, 1:4)(2)HP 150800150800150700150700Mb/s HR150625150625150625150625Mb/sTable 25:LVDS Native-Mode 1000BASE-X Support (1)DescriptionI/O Bank TypeSpeed Grade and V CCINT Operating Voltages1.0V 0.95V0.90V-3-2-1/-1L-1L1000BASE-XHPYesYesYesYesTable 24:LVDS Native Mode Performance (1) (Cont’d)DescriptionI/O Bank TypeSpeed Grade and V CCINT Operating VoltagesUnits1.0V 0.95V 0.90V-3-2-1/-1L-1L MinMaxMinMaxMinMaxMinMax。

DS90UR910-Q1 10MHz to 75MHz, 24-bit color FPD-Link

VDDIO VDDVDDIO VDDProduct FolderSample &BuyTechnical Documents Tools &SoftwareSupport &CommunityDS90UR910-Q1ZHCSDL5D –JUNE 2012–REVISED JULY 2015DS90UR910-Q110MHz 至75MHz 、24位彩色FPD-Link II 至CSI-2转换器1特性•支持10MHz 至75MHz 像素时钟(PCLK)（280Mbps 至2.10Gbps FPD-Link II 线速率）•兼容直流均衡以及交流耦合的FPD-Link II 串行位流•可对长达10米的屏蔽双绞线(STP)电缆进行数据恢复•符合v1.00.00规范的MIPI D-PHY 模块•与MIPI CSI-2版本1.01兼容•支持双通道运行，每条数据通道支持的传输速率最高可达900Mbps•视频流数据包格式：RGB888•连续和非连续时钟模式•支持超低功耗、退出、高速和控制模式•集成输入端接和可调节接收均衡•快速随机锁定；无需基准时钟•CCI/I2C 兼容控制总线•全速内置自检(@Speed BIST)和报告引脚•+1.8V 单电源• 1.8V 或3.3V 兼容LVCMOS I/O 接口•汽车应用级产品：符合AEC-Q1002级要求•8kV ISO 10605静电放电(ESD)额定值•6mm x 6mm 超薄型四方扁平无引线(WQFN)-40封装(1)如需了解所有可用封装，请见数据表末尾的可订购产品附录。

2说明DS90UR910-Q1是一款接口桥接芯片，用于恢复FPD-Link II 串行位流中的数据，并将其转换为符合移动行业处理器接口(MIPI)规范的摄像机串行接口(CSI-2)格式。

该器件可从兼容FPD-Link II 串行器的串行位流中恢复24位或18位RGB 数据以及3个视频同步信号。

AD7545AKP资料

Propagation Delay 2 (from Digital Input Change to 90% of Final Analog Output) Digital-to-Analog Glitch Impulse AC Feedthrough 2, 4 At OUT1 REFERENCE INPUT Input Resistance (Pin 19 to GND) ANALOG OUTPUTS Output Capacitance 2 COUT1 COUT1 DIGITAL INPUTS Input High Voltage VIH Input Low Voltage VIL Input Current5 IIN Input Capacitance2 DB0–DB11, WR, CS SWITCHING CHARACTERISTICS 2 Chip Select to Write Setup Time tCS Chip Select to Write Hold Time tCH Write Pulse Width tWR Data Setup Time tDS Data Hold Time tDH POWER SUPPLY VDD IDD
PIN CONFIGURATIONS DIP/SOIC LCCC PLCC
Hale Waihona Puke REV. CInformation furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 World Wide Web Site: Fax: 781/326-8703 © Analog Devices, Inc., 2000

DS75数字温度计及其程序设计

DS75数字温度计及其程序设计1.1 基本参数及引脚说明 1．基本参数DS75是美信（MAXIM ）公司的一款数字温度传感器芯片，与美国国家半导体（National Semiconductor ）公司的LM75及德州仪器（TI ）公司的TM75完全兼容。

其主要特点有：工作电压范围：2.7V~5.5V低功耗：100~1000μA （待机时1μA ）接口方式：I2C 二线串行接口可编程分辨率：9-Bits 到 12-Bits 操作频率： 100 KHz /400KHz/3.4MHz 精度：测量温度在-25℃~100℃时，为±2℃ 测量范围：-55℃~125℃ 可配置温度报警输出2. 从器件地址、引脚说明及封装表x.1 DS75引脚描述引脚名称引脚编号功能描述引脚封装图SDA 1 I2C 数据口 SCL 2 I2C 时钟输入 O.S. 3 温度报警输出 GND 4电源地A2 5 地址输入端2 A1 6地址输入端1 A0 7地址输入端0 VDD 8 电源正极更多资料请登陆本站主要探讨A VR 、51、及Freescale8位单片机。

提供常用电1表x.2 DS75器件从地址bit7 bit 6 bit 5 bit 4 v3 bit 2 bit 1 bit 01 0 0 1 A2 A1 A0 R/W1.2 DS75内部寄存器描述1.2.1 指针寄存器DS75内部共有5个寄存器，一个指针寄存器（Point Register）和四个数据寄存器（Temperature Register、Configuration Register、TL及TH Register）。

对数据寄存器的选择是通过指针寄存器的低2位（P1和P0）来决定的。

指针寄存器的位描述，及P1、P0的设置对应具体的数据寄存器分别见表x.3和x.4。

表x.3 Point Register的各位（8-Bits）P7 P6 P5 P4 P3 P2 P1 P0Bits0 0 0 0 0 0 Register表x.4 数据寄存器的指针地址P1 P0 数据寄存器0 0 温度寄存器（只读，保存温度值）0 1 配置寄存器（可读写）1 0 临界温度下限寄存器（可读写）1 1 临界温度上限寄存器（可读写）1.2.2 配置寄存器表x.5 Configuration Register的各位（8-Bits）D7 D6 D5 D4 D3 D2 D1 D00 R1 R0 F1 F0 POL TM SD 对各位的描述如下：SD：置1时，DS75进入SHUT DOWN模式；置0时，正常模式；更多资料请登陆本站主要探讨A VR、51、及Freescale8位单片机。

ad7541中文资料和应用电路

ad7541中文资料和应用电路AD7541器件是一款低成本、高性能12位单芯片乘法数模转换器, 主要介绍了AD7541特性、应用范围、参考设计电路以及电路分析，帮助大家缩短设计时间.AD7541介绍:AD7541A是一款低成本、高性能12位单芯片乘法数模转换器.该器件采用先进地低噪声薄膜CMO技术制造，并提供标准18引脚DIP 和20引脚表贴两种封装.AD7541A与业界标准器件AD7541在功能和引脚上均相兼容，并且规格和性能都有所改进.此外，器件设计得到改进，可确保不会发生闩锁，因此无需输出保护肖特基二极管.AD7541特点：AD7541地改进版本完整地四象限乘法12位线性度（端点）所有器件均保证单调性TTL/CM OS兼容型低成本无需保护肖特基二极管低逻辑输入泄漏AD7541内部结构框图:20 kQ V REF JM o-— (17) 20k£i ； 20k (> :! 1 ：i I !. 1 1 1 ______________________________ d i t t t i 1 6 6 6 10kU MSB 糾 (5) SPOT NMOS SWITCHES I QUTJ {2) l OUT1 (1) J A/V« ^FEEOBACK www. dianpoii. com 图1 AD7541地内部结构框图，展示了内部地构成 AD7541参考设计电路:V REF 图2 AD7541典型应用电路版权申明本文部分内容，包括文字、图片、以及设计等在网上搜集整理.版权为个人所有This article in eludes someparts, in cludi ng text, pictures,and desig n. Copyright is pers onal own ership. b5E2R用户可将本文地内容或服务用于个人学习、研究或欣赏，以及其他非商业性或非盈利性用途，但同时应遵守著作权法及其他相关法律地规定，不得侵犯本网站及相关权利人地合法权利.除此以外，将本文任何内容或服务用于其他用途时，须征得本人及相关权利人地书面许可，并支付报酬.p1EanUsers may use the contents or services of this articlefor pers onal study, research or appreciati on, and other non-commercial or non-profit purposes, but at the same time, they shall abide by the provisi ons of copyright law and other releva nt laws, and shall n ot infringe upon the legitimate rights of this website and its releva nt obligees. In additi on, when any content or service of this article is used for other purposes, writte n permissi on and remun erati on shall be obta ined from the pers on concerned and the releva ntobligee. DXDE转载或引用本文内容必须是以新闻性或资料性公共免费信息为使用目地地合理、善意引用，不得对本文内容原意进行曲解、修改，并自负版权等法律责任.RTCeReproducti on or quotatio n of the content of this articlemust be reas on able and good-faith citati on for the use of n ewsor in formative public free in formatio n. It shall notmisinterpret or modify the original intention of the contentof this article, and shall bear legal liability such as copyright. 5PCZV。

TI DS90UB954-Q1 FPD-Link III 双路解串器数据表说明书

I2CProduct Folder Order Now Technical Documents Tools &SoftwareSupport &CommunityDS90UB954-Q1ZHCSGT3B –AUGUST 2017–REVISED DECEMBER 2018DS90UB954-Q1双路4.16Gbps FPD-Link III 解串器集线器：适用于2MP/60fps 摄像头和雷达1特性•符合面向汽车应用的AEC-Q100标准–器件温度2级：-40℃至+105℃的环境工作温度范围•双路解串器集线器可以通过FPD-Link III 接口聚合一个或两个有源传感器•同轴电缆供电(PoC)兼容收发器•符合MIPI DPHY 版本1.2/CSI-2版本1.3标准–CSI-2输出端口–支持1、2、3、4个数据通道–CSI-2数据速率可扩展：每个数据通道支持400Mbps/800Mbps/1.5Gbps/1.6Gbps –可编程数据类型–四个虚拟通道–ECC 和CRC 生成•超低数据和控制路径延迟•支持单端同轴或屏蔽双绞线(STP)电缆•自适应接收均衡•具有快速模式增强版（高达1Mbps ）的I2C •用于摄像头同步和诊断的灵活GPIO •与DS90UB935-Q1、DS90UB953-Q1、DS90UB933-Q1和DS90UB913A-Q1串行器兼容•线路故障检测和高级诊断•符合ISO 10605和IEC 61000-4-2ESD 标准2应用•汽车ADAS–后视摄像头(RVC)–环视系统(SVS)–摄像头监控系统(CMS)–前视摄像头(FC)–驾驶员监控系统(DMS)–卫星雷达、飞行时间(ToF)和激光雷达传感器模块•安全和监控•工业和医疗成像3说明DS90UB954-Q1是一款多功能双路解串器集线器，可通过FPD-Link III 接口从一个或两个独立源接收串行传感器数据。

与DS90UB953-Q1串行器配合使用时，DS90UB954-Q1从成像仪接收数据，支持2MP/60fps 和4MP/30fps 摄像头以及卫星雷达和其他传感器（如ToF 和激光雷达）。

(电子行业企业管理)电子时钟设计DS可调闹钟程序清单

（电子行业企业管理）电子时钟设计DS可调闹钟程序清单电子技术实验报告基于51单片机的电子时钟设计学院：电气工程学院专业：电子信息工程班级：学生姓名：学号：指导教师：2012年6月1 日南华大学摘要随着单片机技术的飞速发展，在其推动下，现代的电子产品几乎渗透到了社会的各个领域，有力地推动了社会生产力的发展和社会信息化程度的提高，同时也使现代电子产品性能进一步提高。

时间就是金钱、时间就是生命、时间就是胜利……，准确的掌握时间和分配时间对人们来说至关重要，时钟是我们生活中必不可少的工具。

电子钟的设计方法有很多种，但是基于单片机并通过LCD显示的电子时钟具有编程灵活、精确度高、便于携带、显示直观等特点。

利用STC89C52单片机对DS1302时钟芯片进行读写操作并通过1602字符液晶显示实时时钟信息，这样便构成了一个单片机电子时钟。

关键词：单片机，电子时钟，STC89C52，蜂鸣器ABSTRACTWith the rapid development of microcomputer technology in its promotion, modern electronics into almost all areas of society, a strong impetus to the development of social productive forces and social improvement in the level of information, but also to further improve the performance of modern electronic products.Time is a money, time is life, time is victory… Accurate grasp of time and allocation of time is crucial to people, The clock is necessary in our lifetools . Clock Design There are many ways, however, produced by single chip electronic clock is more flexible programming, and easy expansion of electronic capabilities, high accuracy, easy to carry, display visual and so on.In this paper, through the use of STC89C52 microcontroller by DS1302 clock chips for reading and writing operation and through 1602 character liquid crystal display real-time clock information so that forming a single chip electronic clock.Key Words: Microcontroller，STC89C52，Electronic clock，buzzer目录绪论---------------------------------------------------------------1概述---------------------------------------------1研究目的-----------------------------------------1第1章设计要求与方案论证--------------------------------21.1 设计要求-------------------------------------21.2 系统基本方案选择和论证-----------------------21.2.1 单片机芯片的选择方案和论证---------------------21.2.2 显示模块选择方案和论证—————————————---21.2.3 时钟芯片的选择方案和论证-----------------------21.3 电路设计最终方案决定----------------------------------3第2章主要元件介绍-----------------------------------------32.1 STC89C52以及最小系统介绍--------------------32.1.1 STC89C52主要功能及PDIP封装----------------------42.1.2 STC89C52引脚介绍-----------------------------------42.1.3 STC89C52最小系统-----------------------------------42.2 DS1302时钟芯片以及集成时钟模块介绍----------52.2.1 DS1302概述------------------------------------------62.2.2 DS1302引脚介绍-------------------------------------62.2.3 DS1302使用方法-------------------------------------62.2.4 时钟集成模块内部原理图以及实物图--------------82.3 1602字符液晶以及显示模块介绍-----------------92.3.1 1602液晶概述-----------------------------------------92.3.2 1602引脚介绍---------------------------------------102.3.3 1602字符液晶使用方法------------------------------112.3.4 LCD显示模块原理图-----------------------------13第3章系统硬件设计—————————————143.1 电路设计框图--------------------------------143.2 系统硬件概述--------------------------------14第4章系统的软件设计-------------------------------------154.1 程序流程框图--------------------------------15第5章系统测试与总结----------------------------175.1 系统测试------------------------------------175.2 总结----------------------------------------17致谢--------------------------------------------------------------18参考文献-------------------------------------18源程序清单-----------------------------------18附录-----------------------------------------35南华大学绪论概述时间，对人们来说是非常宝贵的，准确的掌握时间和分配时间对人们来说至关重要。

DS1923中文资料

Standard speed, VPUP > 4.5V
tMSP
Standard speed
Overdrive speed
65 71.5
8
75
75
µs
9
2 of 52
PARAMETER IO Pin, 1-Wire Write
SYMBOL
Write-0 Low Time (Note 1)
tW0L
Write-1 Low Time (Notes 1, 13)
DS1923: 带 8kB 数据记录存储器的 Hygrochron 温度/湿度记录器 iButton
CONDITIONS
MIN TYP MAX UNITS
Standard speed
60
Overdrive speed, VPUP > 4.5V (Note 11)
6
Overdrive speed (Note 11)
-20°C to +85°C, 0%RH to 100%RH
(See Safe Operating Range Chart)
Storage Temperature and Humidity Range
-40°C to +85°C, 0%RH to 100%RH
(See Safe Operating Range Chart)
DS1923 ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
(VPUP = 3.0V to 5.25V, TA = -20°C to +85°C)
CONDITIONS
MIN TYP MAX UNITS
IO Pin General Data

数字电路的仿真设计与实验——74LS92设计59进制计数

数字电路的仿真设计与实验——74LS92设计59进制计数一、实验目的1. 理解74LS192芯片的功能及其在计数器设计中的应用。

2. 掌握如何使用数字逻辑仿真软件进行电路设计和仿真。

3. 学习如何根据需求设计特定进制的计数器。

4. 增强对数字电路设计的实际操作能力和问题解决能力。

二、预习要求1. 数字逻辑基础：了解数字电路的基本概念，包括逻辑门、触发器等。

2. 计数器的工作原理：熟悉不同类型计数器的工作机制，特别是同步计数器。

3. 74LS192芯片资料：阅读74LS192的数据手册，了解其功能、引脚配置及工作模式。

4. 仿真软件操作：熟悉所选数字逻辑仿真软件的基本操作和电路搭建方法。

5. 进制转换：复习不同进制之间的转换方法，特别是十进制与任意进制之间的转换。

三、实验仪器与设备四、实验内容1、用192串行进位法构成59进制计数器DCD_HEX_ORANGE五、注意事项1. 仔细检查电路连接：确保所有连接正确无误，避免短路或开路的情况发生。

2. 逐步验证电路：在完成整个电路设计之前，先对各个模块进行单独测试，确保每个部分都能正常工作。

3. 观察波形和输出：使用虚拟仪器观察计数器的输出波形和状态，以验证计数器是否按照预期工作。

4. 记录实验数据：在实验过程中，记录关键数据和观察结果，以便后续分析和报告撰写。

5. 安全第一：虽然在仿真环境中进行实验，但仍需遵守实验室的安全规程，保持专注和谨慎。

六、思考与感悟1. 理论与实践相结合：通过将理论知识应用于实际电路设计中，我更加深刻地理解了计数器的工作原理和设计方法。

2. 细节决定成败：在电路设计中，每一个小的细节都可能影响最终的结果。

因此，细心和耐心是成功的关键。

3. 创新思维：在设计59进制计数器的过程中，我尝试了不同的设计方案，这让我意识到创新思维在解决问题时的重要性。