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IN74AC273

Octal D Flip-Flop with Common Clock and Reset

Integral Corp. 

TECHNICAL DATA

Octal D Flip-Flop with

Common Clock and Reset

High-Speed Silicon-Gate CMOS

IN74AC273

The IN74AC273 is identical in pinout to the LS/ALS273,

HC/HCT273. The device inputs are compatible with standard CMOS

outputs; with pullup resistors, they are compatible with LS/ALS

outputs.

This device consists of eight D flip-flops with common Clock and

Reset inputs. Each flip-flop is loaded with a low-to-high transition of

the Clock input. Reset is asynchronous and active low.

• Outputs Directly Interface to CMOS, NMOS, and TTL

• Operating Voltage Range: 2.0 to 6.0 V

• Low Input Current: 1.0 µA; 0.1 µA @ 25°C

• High Noise Immunity Characteristic of CMOS Devices

• Outputs Source/Sink 24 mA

ORDERING INFORMATION

IN74AC273N Plastic

IN74AC273DW SOIC

TA = -40° to 85° C for all

packages

LOGIC DIAGRAM

PIN ASSIGNMENT

PIN 20=VCC

PIN 10 = GND

376

FUNCTION TABLE

Inputs

Reset Clock

D

L

X

X

H

H

H

L

H

L

X

H

X

X = don’t care

Output

Q

L

H

L

no change

no change

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