SN54ABT162825, SN74ABT162825

18-BIT BUFFERS/DRIVERS

WITH 3-STATE OUTPUTS

SCBS474C – JUNE 1994 – REVISED MAY 1997

1

POST OFFICE BOX 655303

Widebus

™ Family

Resistors, So No External Resistors Are

Required

Significantly Reduces Power Dissipation

and Power Down

Minimizes High-Speed Switching Noise

Layout

Shrink Small-Outline (DL) Package and

380-mil Fine-Pitch Ceramic Flat (WD)

Package Using 25-mil Center-to-Center

Spacings

description

The ’ABT162825 are 18-bit buffers and line

drivers designed specifically to improve both the

performance and density of 3-state memory

address drivers, clock drivers, and bus-oriented

receivers

and

transmitters.

These

devices

provide true data, and can be used as two 9-bit

buffers or one 18-bit buffer.

The 3-state control gate is a 2-input AND gate with

active-low inputs so that if either output-enable

(OE1 or OE2) input is high, all nine affected

outputs are in the high-impedance state.

The outputs, which are designed to source or sink up to 12 mA, include equivalent 25-

Ω series resistors to

reduce overshoot and undershoot.

the minimum value of the resistor is determined by the current-sinking capability of the driver.

The SN54ABT162825 is characterized for operation over the full military temperature range of –55

°C to 125°C.

The SN74ABT162825 is characterized for operation from –40

°C to 85°C.

Copyright

© 1997, 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 and EPIC-

ΙΙB are trademarks of Texas Instruments Incorporated.

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.

SN54ABT162825 . . . WD PACKAGE

SN74ABT162825 . . . DL PACKAGE

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1OE1

1Y1

1Y2

GND

1Y3

1Y4

1Y5

1Y6

1Y7

GND

1Y8

1Y9

GND

GND

2Y1

2Y2

GND

2Y3

2Y4

2Y5

2Y6

2Y7

GND

2Y8

2Y9

2OE1

1OE2

1A1

1A2

GND

1A3

1A4

1A5

1A6

1A7

GND

1A8

1A9

GND

GND

2A1

2A2

GND

2A3

2A4

2A5

2A6

2A7

GND

2A8

2A9

2OE2