74ACT11245

OCTAL BUS TRANSCEIVER

WITH 3-STATE OUTPUTS

SCAS031C – JULY 1987 – REVISED APRIL 1996

1

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

D 3-State Outputs Drive Bus Lines Directly

D Inputs Are TTL-Voltage Compatible

D Flow-Through Architecture Optimizes

PCB Layout

D Center-Pin VCC and GND Configurations

Minimize High-Speed Switching Noise

D EPICt (Enhanced-Performance Implanted

CMOS) 1-

mm Process

D 500-mA Typical Latch-Up Immunity at

125

°C

D Package Options Include Plastic

Small-Outline (DW), Shrink Small-Outline

(DB), and Thin Shrink Small-Outline (PW)

Packages, and Standard Plastic 300-mil

DIPs (NT)

description

The octal bus transceiver is designed for asynchronous two-way communication between data buses. The

control-function implementation minimizes external timing requirements.

The device allows 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 direction-control (DIR) input. The output-enable (OE) input can be used to disable the

device so that the buses are effectively isolated.

The 74ACT11245 is characterized for operation from –40

°C to 85°C.

FUNCTION TABLE

OUTPUT

ENABLE

OE

DIRECTION

CONTROL

DIR

OUTPUT

L

L

B data to A bus

L

H

A data to B bus

H

X

Isolation

Copyright

© 1996, Texas Instruments Incorporated

PRODUCTION DATA information is 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 is a trademark of Texas Instruments Incorporated.

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A1

A2

A3

A4

GND

GND

GND

GND

A5

A6

A7

A8

DIR

B1

B2

B3

B4

VCC

VCC

B5

B6

B7

B8

OE

DB, DW, NT, OR PW PACKAGE

(TOP VIEW)