
SN54ABT162827A, SN74ABT162827A
20BIT BUFFERS/DRIVERS
WITH 3STATE OUTPUTS
SCBS248F JULY 1993 REVISED JUNE 2004
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Members of the Texas Instruments
Widebus
Family
D Output Ports Have Equivalent 25- Series
Resistors, So No External Resistors Are
Required
D High-Impedance State During Power Up
and Power Down
D Typical VOLP (Output Ground Bounce)
<1 V at VCC = 5 V, TA = 25°C
D Distributed VCC and GND Pins Minimize
High-Speed Switching Noise
D Ioff and Power-Up 3-State Support Hot
Insertion
D Flow-Through Architecture Optimizes PCB
Layout
D Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
D ESD Protection Exceeds JESD 22
2000-V Human-Body Model (A114-A)
200-V Machine Model (A115-A)
description/ordering information
The ’ABT162827A devices are noninverting
20-bit buffers composed of two 10-bit buffers with
separate output-enable signals. For either 10-bit
buffer, the two output-enable (1OE1 and 1OE2, or
2OE1 and 2OE2) inputs must both be low for the
corresponding Y outputs to be active. If either
output-enable input is high, the outputs of that
10-bit buffer are in the high-impedance state.
The outputs, which are designed to source or sink
up to 12 mA, include equivalent 25-
series
resistors to reduce overshoot and undershoot.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
SSOP DL
Tube
SN74ABT162827ADL
ABT162827A
40
°C to 85°C
SSOP DL
Tape and reel
SN74ABT162827ADLR
ABT162827A
40 C to 85 C
TSSOP DGG
Tape and reel
SN74ABT162827ADGGR
ABT162827A
55
°C to 125°C
CFP WD
Tube
SNJ54ABT162827AWD
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
SN54ABT162827A . . . WD PACKAGE
SN74ABT162827A . . . DGG OR DL PACKAGE
(TOP VIEW)
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1OE1
1Y1
1Y2
GND
1Y3
1Y4
VCC
1Y5
1Y6
1Y7
GND
1Y8
1Y9
1Y10
2Y1
2Y2
2Y3
GND
2Y4
2Y5
2Y6
VCC
2Y7
2Y8
GND
2Y9
2Y10
2OE1
1OE2
1A1
1A2
GND
1A3
1A4
VCC
1A5
1A6
1A7
GND
1A8
1A9
1A10
2A1
2A2
2A3
GND
2A4
2A5
2A6
VCC
2A7
2A8
GND
2A9
2A10
2OE2
Copyright
2004, 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.
Widebus is a trademark of Texas Instruments.
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.