MC74ACT273 ON Semiconductor, MC74ACT273 Datasheet

MC74ACT273

Manufacturer Part Number

MC74ACT273

Description

Octal D Flip-Flop

Manufacturer

ON Semiconductor

Datasheet

1.MC74ACT273.pdf (8 pages)

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MC74AC273, MC74ACT273

Octal D Flip−Flop

flip−flops with individual D inputs and Q outputs. The common

buffered Clock (CP) and Master Reset (MR) inputs load and reset

(clear) all flip−flops simultaneously.

setup time before the LOW−to−HIGH clock transition, is transferred

to the corresponding flip−flop’s Q output.

inputs by a LOW voltage level on the MR input. The device is useful

for applications where the true output only is required and the Clock

and Master Reset are common to all storage elements.

Features

•

*For additional information on our Pb−Free strategy and soldering details, please

December, 2005 − Rev. 6

MODE SELECT-FUNCTION TABLE

H = HIGH Voltage Level

L = LOW Voltage Level

X = Immaterial

download the ON Semiconductor Soldering and Mounting Techniques

Reference Manual, SOLDERRM/D.

Reset (Clear)

Load ′1′

Load ′0′

The MC74AC273/74ACT273 has eight edge-triggered D−type

The register is fully edge-triggered. The state of each D input, one

All outputs will be forced LOW independently of Clock or Data

Ideal Buffer for MOS Microprocessor or Memory

Eight Edge-Triggered D Flip−Flops

Buffered Common Clock

Buffered, Asynchronous Master Reset

See MC74AC377 for Clock Enable Version

See MC74AC373 for Transparent Latch Version

See MC74AC374 for 3-State Version

Outputs Source/Sink 24 mA

′ACT273 Has TTL Compatible Inputs

Pb−Free Packages are Available*

= LOW-to-HIGH Clock Transition

Operating Mode

Pinout: 20−Lead Packages Conductors

(Top View)

Inputs

Outputs

GND

See detailed ordering and shipping information in the package

dimensions section on page 5 of this data sheet.

See general marking information in the device marking

section on page 6 of this data sheet.

DEVICE MARKING INFORMATION

−D

−Q

ORDERING INFORMATION

http://onsemi.com

PIN ASSIGNMENT

Logic Symbol

FUNCTION

Data Inputs

Master Reset

Clock Pulse Input

Data Outputs

Publication Order Number:

SOIC−20WB

SUFFIX DW

CASE 751D

CASE 948E

SOEIAJ−20

TSSOP−20

SUFFIX DT

CASE 738

SUFFIX M

CASE 967

SUFFIX N

PDIP−20

MC74AC273/D

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