IN74HC158AD Просмотр технического описания (PDF) - Integral Corp.

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IN74HC158AD

QUAD 2-INPUT DATA SELECTORS/MULTIPLEXERS

Integral Corp. 

IN74HC158A

QUAD 2-INPUT DATA SELECTORS/MULTIPLEXERS

High-Performance Silicon-Gate CMOS

The IN74HC158A is identical in pinout to the LS/ALS158. The

device inputs are compatible with standard CMOS outputs; with

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

This device routes 2 nibbles (A or B) to a single port (Y) as

determined by the Select input. The data is presented at the

outputs in invertered form. A high level on the Output Enable input

sets all four Y outputs to a high level.

• 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

IN74HC158AN Plastic

IN74HC158AD SOIC

TA = -55° to 125° C for all

packages

LOGIC DIAGRAM

PIN ASSIGNMENT

PIN 16 =VCC

PIN 8 = GND

FUNCTION TABLE

Inputs

Outputs

Output

Select Y0-Y3

Enable

H

X

H

L

L

A0 − A3

L

H

B0 − B3

X=don’t care

A0-A3,B0-B3=the levels of the

respective Data-Word Inputs

1

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