SN54ABTH16460, SN74ABTH16460

4-TO-1 MULTIPLEXED/DEMULTIPLEXED TRANSCEIVERS

WITH 3-STATE OUTPUTS

SCBS207F – OCTOBER 1992 – REVISED MAY 1997

1

POST OFFICE BOX 655303

Widebus

™ Family

Significantly Reduces Power Dissipation

JEDEC Standard JESD-17

and Power Down

Minimizes High-Speed Switching Noise

Layout

Need for External Pullup/Pulldown

Resistors

Shrink Small-Outline (DL) and Thin Shrink

Small-Outline (DGG) Packages and 380-mil

Fine-Pitch Ceramic Flat (WD) Package

Using 25-mil Center-to-Center Spacings

description

The ’ABTH16460 are 4-bit to 1-bit multiplexed

registered transceivers used in applications

where four separate data paths must be

multiplexed onto or demultiplexed from a single

data

path.

Typical

applications

include

multiplexing and/or demultiplexing of address and

data

information

in

microprocessor

or

bus-interface applications. These devices also

are useful in memory-interleaving applications.

Five 4-bit I/O ports (1A–4A, 1B1–4, 2B1–4, 3B1–4, and 4B1–4) are available for address and/or data transfer.

The output-enable (OEB, OEB1–OEB4, and OEA) inputs control the bus-transceiver functions. These control

signals also allow 4-bit or 16-bit control, depending on the OEB level.

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.

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.

SN54ABTH16460 . . . WD PACKAGE

SN74ABTH16460 . . . DGG OR DL PACKAGE

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LEAB1

LEAB2

LEBA

GND

LEB1

LEB2

CLKBA

OEB

CLKAB

GND

1A

2A

CE_SEL0

CE_SEL1

3A

4A

GND

CLKENAB

CLKENB

CLKENBA

LEB3

LEB4

GND

OEA

LEAB3

LEAB4

OEB1

OEB2

SEL0

GND

1B1

1B2

1B3

1B4

2B1

GND

2B2

2B3

2B4

3B1

3B2

3B3

GND

3B4

4B1

4B2

4B3

4B4

GND

SEL1

OEB3

OEB4