ACT16640

54ACT16640 TI | Alldatasheet

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54ACT16640, 74ACT16640 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCAS173A - JULY 1990 - REVISED APRIL 1996 1POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 /C0068Members of the Texas Instruments Widebus  Family /C0068Inputs Are TTL-Voltage Compatible /C0068Flow-Through Architecture Optimizes PCB Layout /C0068Distributed VCC and GND Pin Configuration Minimizes High-Speed Switching Noise /C0068EPIC  (Enhanced-Performance Implanted CMOS) 1-mm Process /C0068500-mA Typical Latch-Up Immunity at 125°C /C0068Packaged in Plastic 300-mil Shrink Small-Outline (DL) Packages Using 25-mil Center-to-Center Pin Spacings and 380-mil Fine-Pitch Ceramic Flat (WD) Packages Using 25-mil Center-to-Center Spacings

description

The ’ACT16640 are inverting 16-bit transceivers designed for asynchronous communication between data buses. These devices can be used as two 8-bit transceivers or one 16-bit transceiver. They allow data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (1DIR and 2DIR) inputs. The output-enable (1OE and 2OE) inputs can be used to disable the device so that the buses are effectively isolated. The 74ACT16640 is packaged in TI’s shrink small-outline package, which provides twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area. The 54ACT16640 is characterized for operation over the full military temperature range of –55°C to 125°C. The 74ACT16640 is characterized for operation from –40°C to 85°C. FUNCTION TABLE (each section) INPUTS OPERATION OE DIR OPERATION L L B data to A bus L HA data to B bus H X Isolation Copyright  1996, Texas Instruments IncorporatedUNLESS OTHERWISE NOTED this document contains PRODUCTION DATA information current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. EPIC and Widebus are trademarks of Texas Instruments Incorporated. 1DIR 1B1 1B2 GND 1B3 1B4 V CC 1B5 1B6 GND 1B7 1B8 2B1 2B2 GND 2B3 2B4 V CC 2B5 2B6 GND 2B7 2B8 2DIR 1OE 1A1 1A2 GND 1A3 1A4 V CC 1A5 1A6 GND 1A7 1A8 2A1 2A2 GND 2A3 2A4 V CC 2A5 2A6 GND 2A7 2A8 2OE 54ACT16640 . . . WD PACKAGE 74ACT16640 . . . DL PACKAGE (TOP VIEW)

54ACT16640, 74ACT16640 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCAS173A - JULY 1990 - REVISED APRIL 1996

2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

logic symbol† 1A2 1A3 1A4 1A5 1A6 1A7 1A8 2A2 2A3 2A4 2A5 2A6 2A7 2A8 1OE 1A1 1B1 1B6 1B7 1B8 1B2 1B3 1B4 1B5 2A1 2B1 2B6 2B7 2B8 2B2 2B3 2B4 2B5

3 EN2 [AB]

3 EN1 [BA]

6 EN5 [AB]

6 EN4 [BA]

† This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. logic diagram (positive logic) 1OE 1DIR 1A1 1B1 247 To Seven Other Channels 2OE 2DIR 2A1 2B11336 To Seven Other Channels

54ACT16640, 74ACT16640 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCAS173A - JULY 1990 - REVISED APRIL 1996 3POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 absolute maximum ratings over operating free-air temperature range (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 under “recommended operating conditions” is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed. 2. The maximum package power dissipation is calculated using a junction temperature of 150/C0095C and a board trace length of 750 mils. recommended operating conditions (see Note 3) 54ACT16640 74ACT16640 UNIT MIN NOM MAX MIN NOM MAX UNIT VCC Supply voltage 4.5 5 5.5 4.5 5 5.5 V VIH High-level input voltage 2 2 V VIL Low-level input voltage 0.8 0.8 V VI Input voltage 0 VCC 0 VCC V VO Output voltage 0 VCC 0 VCC V IOH High-level output current –24 –24 mA IOL Low-level output current 24 24 mA Dt/Dv Input transition rise or fall rate 0 10 0 10 ns/V TA Operating free-air temperature –55 125 –40 85 °C NOTE 3: Unused pins (input or I/O) must be held high or low to prevent them from floating. PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice.

54ACT16640, 74ACT16640 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS SCAS173A - JULY 1990 - REVISED APRIL 1996

4 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

electrical characteristics over recommended operating free-air temperature range (unless otherwise noted) PARAMETER TEST CONDITIONS VCC TA = 25°C 54ACT16640 74ACT16640 UNITPARAMETER TEST CONDITIONS VCC MIN TYP MAX MIN MAX MIN MAX UNIT IOH =5 0 mA 4.5 V 4.4 4.4 4.4 IOH = –50 mA 5.5 V 5.4 5.4 5.4 VOH IOH =2 4 m A 4.5 V 3.94 3.8 3.8 V IOH = –24 mA 5.5 V 4.94 4.8 4.8 IOH = –75 mA† 5.5 V 3.85 3.85 IOL =5 0mA 4.5 V 0.1 0.1 0.1 IOL = 50 mA 5.5 V 0.1 0.1 0.1 VOL IOL =2 4 m A 4.5 V 0.36 0.44 0.44 V IOL = 24 mA 5.5 V 0.36 0.44 0.44 IOL = 75 mA† 5.5 V 1.65 1.65 II Control inputsVI = VCC or GND 5.5 V ±1 ±1 ±1 mA IOZ ‡ A or B ports VO = VCC or GND 5.5 V ±0.5 ±5 ±5 mA ICC VI = VCC or GND, IO = 0 5.5 V 8 80 80 mA DICC § One input at 3.4 V, Other inputs at VCC or GND 5.5 V 0.9 1 1 mA C i Control inputsVI = VCC or GND 5 V 4.5 pF C io A or B ports VO = VCC or GND 5 V 16 pF † Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms. ‡ For I/O ports, the parameter IOZ includes the input leakage current. § This is the increase in supply current for each input that is at one of the specified TTL voltage levels rather than 0 V or VCC . switching characteristics over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1) PARAMETER FROM TO TA = 25°C 54ACT16640 74ACT16640 UNITPARAMETER (INPUT) (OUTPUT) MIN TYP MAX MIN MAX MIN MAX UNIT tPLH Ao rB Bo rA ns tPHL A or B B or A ns tPZH OE Ao rB ns tPZL OE A or B ns tPHZ OE Ao rB ns tPLZ OE A or B ns operating characteristics, VCC = 5 V, TA = 25°C PARAMETER TEST CONDITIONS TYP UNIT C d Power dissipation capacitanceper transceiver Outputs enabled C L =5 0pF f=1M H z pFC pd Pow er dissipation capacitance per transceiver Outputs disabled C L = 50 pF, f = 1 MH z pF PRODUCT PREVIEW information concerns products in the formative or design phase of development. Characteristic data and other specifications are design goals. Texas Instruments reserves the right to change or discontinue these products without notice.

500 W tPLH /tPHL

NOTES: A. C L includes probe and jig capacitance. B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control. Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control. C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 1 MHz, ZO = 50 W , tr = 3 ns, tf = 3 ns. D. The outputs are measured one at a time with one input transition per measurement. Figure 1. Load Circuit and Voltage Waveforms

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