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SL74HC244N

Octal 3-State Noninverting Buffer/Line Driver/Line Receiver

System Logic Semiconductor 

SL74HC244

Octal 3-State Noninverting

Buffer/Line Driver/Line Receiver

High-Performance Silicon-Gate CMOS

The SL74HC244 is identical in pinout to the LS/ALS244. The device

inputs are compatible with standard CMOS outputs; with pullup

resistors, they are compatible with LS/ALSTTL outputs.

This octal noninverting buffer/line driver/line receiver is designed

to be used with 3-state memory address drivers, clock drivers, and

other bus-oriented systems. The device has noninverting outputs and

two active-low output enables.

• Outputs Directly Interface to CMOS, NMOS, and TTL

• Operating Voltage Range: 2.0 to 6.0 V

• Low Input Current: 1.0 µA

• High Noise Immunity Characteristic of CMOS Devices

ORDERING INFORMATION

SL74HC244N Plastic

SL74HC244D SOIC

TA = -55° to 125° C for all packages

LOGIC DIAGRAM

PIN ASSIGNMENT

PIN 20=VCC

PIN 10 = GND

SLS

System Logic

Semiconductor

FUNCTION TABLE

Inputs

Enable A,

A,B

Enable B

L

L

L

H

H

X

X=don’t care

Z = high impedance

Outputs

YA,YB

L

H

Z

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