74ACT16623 Datasheet, PDF (1/7 Pages) Texas Instruments – 16-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

54ACT16623, 74ACT16623
16-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCAS152A – JANUARY 1991 – REVISED APRIL 1996
D Members of the Texas Instruments
Widebus ™ Family
D Inputs are TTL-Voltage Compatible
D Flow-Through Architecture Optimizes
PCB Layout
D Distributed V_CC and GND Pin Configuration
Minimizes High-Speed Switching Noise
D EPIC™ (Enhanced-Performance Implanted
CMOS) 1-µm Process
D Package Options Include 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
Pin Spacings
description
The ’ACT16623 are 16-bit transceivers designed
for asynchronous two-way communication between
data buses. The control-function implementation
allows for maximum flexibility in timing.
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 output-enable (OEBA and OEAB)
inputs. The output-enable inputs can be used to
disable the device so that the buses are effectively
isolated.
54ACT16623 . . . WD PACKAGE
75ACT16623 . . . DL PACKAGE
(TOP VIEW)
1OEAB 1
1B1 2
1B2 3
GND 4
1B3 5
1B4 6
V_CC 7
1B5 8
1B6 9
GND 10
1B7 11
1B8 12
2B1 13
2B2 14
GND 15
2B3 16
2B4 17
V_CC 18
2B5 19
2B6 20
GND 21
2B7 22
2B8 23
2OEAB 24
48 1OEBA
47 1A1
46 1A2
45 GND
44 1A3
43 1A4
42 V_CC
41 1A5
40 1A6
39 GND
38 1A7
37 1A8
36 2A1
35 2A2
34 GND
33 2A3
32 2A4
31 V_CC
30 2A5
29 2A6
28 GND
27 2A7
26 2A8
25 2OEBA
The dual-enable configuration gives the bus transceiver the capability to store data by simultaneously enabling
OEBA and OEAB. Each output reinforces its input in this transceiver configuration. When both control inputs
are enabled and all other data sources to the two sets of bus lines are at high impedance, the bus lines remain
at their last states.
The 74ACT16623 is packaged in TI’s shrink small-outline package, which provides twice the functionality of
standard small-outline packages in the same printed-circuit-board area.
The 54ACT16623 is characterized for operation over the full military temperature range of –55°C to 125°C. The
74ACT16623 is characterized for operation from –40°C to 85°C.
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.
UNLESS 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.
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Copyright © 1996, Texas Instruments Incorporated
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