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IN74AC240DW

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

IK Semicon Co., Ltd 

TECHNICAL DATA

Octal 3-State Inverting Buffer/Line

Driver/Line Receiver

High-Speed Silicon-Gate CMOS

IN74AC240

The IN74AC240 is identical in pinout to the LS/ALS240,

HC/HCT240. The device inputs are compatible with standard CMOS

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

outputs.

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.

• 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

LOGIC DIAGRAM

ORDERING INFORMATION

IN74AC240N Plastic

IN74AC240DW SOIC

TA = -40° to 85° C for all packages

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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