54ACT16864, 74ACT16864

18BIT BUS TRANSCEIVERS

WITH 3STATE OUTPUTS

SCAS244A − JUNE 1992 − REVISED APRIL 1996

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POST OFFICE BOX 655303

POST OFFICE BOX 1443

Widebus

 Family

PCB Layout

Minimizes High-Speed Switching Noise

CMOS) 1-

µm Process

125

°C

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

Spacings

description

The ’ACT16864 are 18-bit inverting transceivers

designed

for

asynchronous

communication

between

data

buses.

The

control-function

implementation

minimizes

external

timing

requirements.

The ’ACT16864 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.

The 74ACT16864 is packaged in TI’s shrink small-outline package, which provides twice the I/O pin count and

functionality of standard small-outline packages in the same printed-circuit-board area.

The 54ACT16864 is characterized for operation over the full military temperature range of −55

°C to 125°C. The

74ACT16864 is characterized for operation from −40

°C to 85°C.

FUNCTION TABLE

(each 9-bit section)

INPUTS

OPERATION

OEAB

OEBA

OPERATION

H

L

B data to A bus

L

HA data to B bus

H

H

Isolation

Copyright

 1996, 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.

EPIC and WIdebus are trademarks of Texas Instruments Incorporated.

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1OEAB

1B1

1B2

GND

1B3

1B4

1B5

1B6

1B7

GND

1B8

1B9

GND

GND

2B1

2B2

GND

2B3

2B4

2B5

2B6

2B7

GND

2B8

2B9

2OEAB

1OEBA

1A1

1A2

GND

1A3

1A4

1A5

1A6

1A7

GND

1A8

1A9

GND

GND

2A1

2A2

GND

2A3

2A4

2A5

2A6

2A7

GND

2A8

2A9

2OEBA

54ACT16864 . . . DW PACKAGE

74ACT16864 . . . DL PACKAGE

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