IDT74FCT861A中文资料

MILITARY AND COMMERCIAL TEMPERATURE RANGESAPRIL 1994©1994 Integrated Device Technology, Inc.7.23DSC-4620/3The IDT logo is a registered trademark of Integrated Device Technology, Inc.FAST is a trademark of National Semiconductor Co.•Equivalent to AMD’s Am29861-64 bipolar registers in pinout/function, speed and output drive over full tempera-ture and voltage supply extremes•IDT54/74FCT861A/863A equivalent to FAST ™ speed •IDT54/74FCT861B/863B 25% faster than FAST •High-speed symmetrical bidirectional transceivers •I OL = 48mA (commercial) and 32mA (military)•Clamp diodes on all inputs for ringing suppression •CMOS power levels (1mW typ. static)•TTL input and output level compatible •CMOS output level compatible•Substantially lower input current levels than AMD’s bipolar Am29800 Series (5µA max.)•Product available in Radiation Tolerant and Radiation Enhanced versions•Military product compliant to MIL-STD-883, Class BThe IDT54/74FCT800 series is built using an advanced dual metal CMOS technology.The IDT54/74FCT860 series bus transceivers provide high-performance bus interface buffering for wide data/address paths or buses carrying parity. The IDT54/74FCT863 9-bit transceivers have NAND-ed output enables for maximum control flexibility.All of the IDT54/74FCT800 high-performance interface family are designed for high-capacitance load drive capability while providing low-capacitance bus loading at both inputs and outputs. All inputs have clamp diodes and all outputs are designed for low-capacitance bus loading in the high- im-pedance state.FUNCTIONAL BLOCK DIAGRAMSIDT54/74FCT861IDT54/74FCT86312610 drw 01HIGH-PERFORMANCE CMOS BUS TRANSCEIVERSMILITARY AND COMMERCIAL TEMPERATURE RANGES7.232PIN CONFIGURATIONSIDT54/74FCT861 10-BIT TRANSCEIVERSGNDOER R 0R 1Vcc T 0R 2R 3R 4R 5R 6T 1T 2T 3T 4T 5T 6T 7R 7R 8T 8122OET 1DIP/CERPACK/SOICTOP VIEW 2610 drw 02N NC T 2T 3T 4T 5T 6T 7G N R TO E R O E T O E T LOGIC SYMBOLSLCC TOP VIEWGNDR 0R 1Vcc T 0R 2R 3R 4R 5R 6T 1T 2T 3T 4T 5T 6T 7R 7R 8R 9T 8T 9LCC TOP VIEWDIP/CERPACK/SOICTOP VIEWN C NC T 2T 3T 4T 5T 6T 7G N R R T T O E TIDT54/74FCT863 9-BIT TRANSCEIVERSIDT54/74FCT863IDT54/74FCT861OET OER OERHIGH-PERFORMANCE CMOS BUS TRANSCEIVERSMILITARY AND COMMERCIAL TEMPERATURE RANGES7.2332610 tbl 01NOTE:2610 tbl 041.This parameter is guaranteed by characterization but not tested.(1)2610 tbl 031.Stresses greater than those listed under ABSOLUTE MAXIMUMRATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability. No terminal voltage may exceed V CC by +0.5V unless otherwise noted.2.Inputs and V CC terminals only.3.Outputs and I/O terminals only.FUNCTION TABLE (1)2610 tbl 021.H = HIGH, L = LOW, Z = High Impedance, X = Don’t Care, N/A = NotApplicable.DC ELECTRICAL CHARACTERISTICS OVER OPERATING RANGEFollowing Conditions Apply Unless Otherwise Specified: V LC = 0.2V, V H C = V CC – 0.2V2610 tbl 051.For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.2.Typical values are at V CC = 5.0V, +25°C ambient and maximum loading.3.Not more than one output should be shorted at one time. Duration of the short circuit test should not exceed one second.4.This parameter is guaranteed but not tested.5.These are maximum I OL values per output, for 10 outputs turned on simultaneously. Total maximum I OL (all outputs) is 480mA for commercial and 320mAfor military. Derate I OL for number of outputs exceeding 10 turned on simultaneously.7.234POWER SUPPLY CHARACTERISTICSV LC = 0.2V; V HC = V CC – 0.2V2610 tbl 061.For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device type.2.Typical values are at V CC = 5.0V, +25°C ambient.3.Per TTL driven input (V IN = 3.4V); all other inputs at V CC or GND.4.This parameter is not directly testable, but is derived for use in Total Power Supply calculations.5.Values for these conditions are examples of the I CC formula. These limits are guaranteed but not tested.6.I C = I QUIESCENT +I INPUTS + I DYNAMICI C = I CC + ∆I CC D H N T + I CCD(f CP/2 + f i N i)I CC = Quiescent Current∆I CC = Power Supply Current for a TTL High Input (V IN = 3.4V)D H = Duty Cycle for TTL Inputs HighN T = Number of TTL Inputs at D HI CCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)f CP = Clock Frequency for Register Devices (Zero for Non-Register Devices)f i = Input FrequencyN i = Number of Inputs at f iAll currents are in milliamps and all frequencies are in megahertz.7.2352610 tbl 071.See test circuits and waveforms.2.Minimum limits are guaranteed but not tested on Propagation Delays.3.This condition guaranteed but not tested.7.2367.2377.0V3V 1.5V 0V3V 1.5V 0V 3V 1.5V 0V 3V 1.5V0V DATA INPUTPRESET CLEAR ETC.1.5V1.5VSAME PHASE INPUT TRANSITION3V 1.5V 0V 1.5V V OH OUTPUTOPPOSITE PHASE INPUT TRANSITION3V 1.5V 0VV OL3V 1.5V 0V 3.5V0VV OLENABLEDISABLEV OH PRESET CLEARCLOCK ENABLEETC.TEST CIRCUITS AND WAVEFORMS TEST CIRCUITS FOR ALL OUTPUTSSET-UP, HOLD AND RELEASE TIMESPULSE WIDTHSWITCH POSITIONTest Switch Open Drain Disable Low Closed Enable Low All Other TestsOpenDEFINITIONS:2610 tbl 08C L =Load capacitance: includes jig and probe capacitance.R T =Termination resistance: should be equal to Z OUT of the PulseGenerator.ENABLE AND DISABLE TIMESPROPAGATION DELAY2610 drw 03NOTES:1.Diagram shown for input Control Enable-LOW and input Control Disable-HIGH2.Pulse Generator for All Pulses: Rate ≤ 1.0MHz; t F ≤ 2.5ns; t R ≤ 2.5ns7.238ORDERING INFORMATIONXXXXXXX X Blank B CommercialMIL-STD-883, Class B P D E L SO Plastic DIP CERDIP CERPACKLeadless Chip Carrier Small Outline IC-55°C to +125°C 0° to +70°C2610 drw 045474FCT IDT 861A 863A 861B 863B 10-Bit Non-inverting Transceiver 9-Bit Non-inverting Transceiver。