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IN74HCT240A

Octal 3-State Inverting Buffer/Line Driver/Line Receiver High-Performance Silicon-Gate CMOS

IK Semicon Co., Ltd 

TECHNICAL DATA

Octal 3-State Inverting Buffer/Line

Driver/Line Receiver

High-Performance Silicon-Gate CMOS

IN74HCT240A

The IN74HCT240A is identical in pinout to the LS/ALS240. The

IN74HCT240A may be used as a level converter for interfacing TTL or

NMOS outputs to High Speed CMOS inputs.

This octal inverting 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 inverting outputs and two active-low

output enables.

• TTL/NMOS Compatible Input Levels

• Outputs Directly Interface to CMOS, NMOS, and TTL

• Operating Voltage Range: 4.5 to 5.5 V

• Low Input Current: 1.0 µA

ORDERING INFORMATION

IN74HCT240AN P lastic

IN74HCT240ADW SOIC

TA = -55° to 125° C for all packages

LOGIC DIAGRAM

PIN ASSIGNMENT

PIN 20=VCC

PIN 10 = GND

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

H

L

Z

Rev. 00

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