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SL74HC158D

Quad 2-Input Data Selectors/Multiplexers High-Performance Silicon-Gate CMOS

System Logic Semiconductor 

SL74HC158

Quad 2-Input Data Selectors/Multiplexers

High-Performance Silicon-Gate CMOS

The SL74HC158 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

SL74HC158N Plastic

SL74HC158D SOIC

TA = -55° to 125° C for all packages

LOGIC DIAGRAM

PIN ASSIGNMENT

PIN 16 =VCC

PIN 8 = GND

FUNCTION TABLE

Inputs

Outputs

Output

Enable

Select

Y0-Y3

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

SLS

System Logic

Semiconductor

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