SN54ABT16863_08 Datasheet, PDF (1/9 Pages) Texas Instruments – 18-BIT BUS TRANSCEIVERS WITH 3-STATE OUTPUTS

SN54ABT16863, SN74ABT16863
18-BIT BUS TRANSCEIVERS
WITH 3-STATE OUTPUTS
SCBS225C – JUNE 1992 – REVISED MAY 1997
D Members of the Texas Instruments
Widebus ™ Family
D State-of-the-Art EPIC-ΙΙB™ BiCMOS Design
Significantly Reduces Power Dissipation
D Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
D Typical V_OLP (Output Ground Bounce) < 1 V
at V_CC = 5 V, T_A = 25°C
D High-Impedance State During Power Up
and Power Down
D Distributed V_CC and GND Pin Configuration
Minimizes High-Speed Switching Noise
D Flow-Through Architecture Optimizes PCB
Layout
D High-Drive Outputs (–32-mA I_OH, 64-mA I_OL)
D Package Options Include Plastic 300-mil
Shrink Small-Outline (DL) Package and
380-mil Fine-Pitch Ceramic Flat (WD)
Package Using 25-mil Center-to-Center
Spacings
description
The ’ABT16863 are 18-bit noninverting
transceivers designed for asynchronous
communication between data buses. The
control-function implementation minimizes
external timing requirements.
The ’ABT16863 can be used as two 9-bit
transceivers or one 18-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 (OEAB or OEBA)
inputs.
SN54ABT16863 . . . WD PACKAGE
SN74ABT16863 . . . DL PACKAGE
(TOP VIEW)
1OEAB 1
1B1 2
1B2 3
GND 4
1B3 5
1B4 6
V_CC 7
1B5 8
1B6 9
1B7 10
GND 11
1B8 12
1B9 13
GND 14
GND 15
2B1 16
2B2 17
GND 18
2B3 19
2B4 20
2B5 21
V_CC 22
2B6 23
2B7 24
GND 25
2B8 26
2B9 27
2OEAB 28
56 1OEBA
55 1A1
54 1A2
53 GND
52 1A3
51 1A4
50 V_CC
49 1A5
48 1A6
47 1A7
46 GND
45 1A8
44 1A9
43 GND
42 GND
41 2A1
40 2A2
39 GND
38 2A3
37 2A4
36 2A5
35 V_CC
34 2A6
33 2A7
32 GND
31 2A8
30 2A9
29 2OEBA
When V_CC is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down.
However, to ensure the high-impedance state above 2.1 V, OE should be tied to V_CC through a pullup resistor;
the minimum value of the resistor is determined by the current-sinking capability of the driver.
The SN54ABT16863 is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74ABT16863 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.
Widebus and EPIC-ΙΙB 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 © 1997, Texas Instruments Incorporated
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