IN74HCT240AN 查看數據表（PDF） - Integral Corp.

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IN74HCT240AN

OCTAL 3-STATE INVERTING BUFFER/LINE DRIVER/LINE RECEIVER

Integral Corp. 

IN74HCT240A

OCTAL 3-STATE INVERTING BUFFER/LINE

DRIVER/LINE RECEIVER

High-Performance Silicon-Gate CMOS

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 Plastic

IN74HCT240ADW SOIC

TA = -55° to 125° C for all

packages

LOGIC DIAGRAM

PIN ASSIGNMENT

PIN 20=VCC

PIN 10 = GND

FUNCTION TABLE

Inputs

Outputs

Enable A, A,B YA,YB

Enable B

L

L

H

L

H

L

H

X

Z

X = don’t care

Z = high impedance

1

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