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74ACT652

Transceiver/Register

Fairchild Semiconductor 

August 1999

Revised September 2000

74ACT652

Transceiver/Register

General Description

The ACT652 consists of bus transceiver circuits with D-

type flip-flops, and control circuitry arranged for multiplexed

transmission of data directly from the input bus or from

internal registers. Data on the A or B bus will be clocked

into the registers as the appropriate clock pin goes to the

HIGH logic level. Output Enable pins (OEAB, OEBA) are

provided to control the transceiver function.

Features

s Independent registers for A and B buses

s Multiplexed real-time and stored data

s Outputs source/sink 24 mA

s TTL-compatible inputs

Ordering Code:

Order Number Package Number

Package Description

74ACT652SC

M24B

24-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-013, 0.300 Wide

74ACT652MTC

MTC24

24-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm Wide

74ACT652SPC

N24C

24-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide

Device also available in Tape and Reel. Specify by appending suffix letter “X” to the ordering code.

Logic Symbols

Connection Diagram

IEEE/IEC

Pin Descriptions

Pin Names

A0–A7, B0–B7

CPAB, CPBA

SAB, SBA

OEAB, OEBA

Description

A and B Inputs/3-STATE Outputs

Clock Inputs

Select Inputs

Output Enable Inputs

FACT is a trademark of Fairchild Semiconductor Corporation.

© 2000 Fairchild Semiconductor Corporation DS500310

www.fairchildsemi.com

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