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MC74AC652

Octal Transceiver/Register with 3-State Outputs (Non-Inverting)

ON Semiconductor 

MC74AC652, MC74ACT652

Octal Transceiver/Register

with 3-State Outputs

(Non-Inverting)

The MC74AC/ACT652 consists of registered bus transceiver

circuits, with outputs, D−type flip−flops and control circuitry

providing multiplexed transmission of data directly from the input bus

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

loaded into the respective registers on the LOW−to−HIGH transition

of the appropriate clock pin (CAB or CBA). The four fundamental

data handling functions available are illustrated in Figures 1 to 4.

Features

• Independent Registers for A and B Buses

• Multiplexed Real−Time and Stored Data Transfers

• Choice of True and Inverting Data Paths

• 3−State Outputs

• 300 mil Slim Dual−in−Line Package

• Outputs Source/Sink 24 mA

• ′ACT652 Has TTL Compatible Inputs

• These are Pb−Free Devices

REAL TIME TRANSFER

A‐BUS TO B‐BUS

A‐BUS

REG

REG

B‐BUS

Figure 1.

STORAGE

FROM BUS TO REGISTER

A‐BUS

REG

REG

B‐BUS

Figure 3.

REAL TIME TRANSFER

B‐BUS TO A‐BUS

A‐BUS

REG

REG

B‐BUS

Figure 2.

TRANSFER

FROM REGISTER TO BUS

A‐BUS

REG

REG

B‐BUS

Figure 4.

www.onsemi.com

MARKING DIAGRAMS

24

1

SO−24

DW SUFFIX

CASE 751E

AC652

AWLYYWWG

ACT652

AWLYYWWG

A = Assembly Location

WL = Wafer Lot

YY = Year

WW = Work Week

G = Pb−Free Package

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 9 of this data sheet.

© Semiconductor Components Industries, LLC, 2015

1

March, 2015 − Rev. 7

Publication Order Number:

MC74AC652/D

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