MC74HC157A

http://onsemi.com

2

2

5

11

14

3

6

10

13

4

7

9

12

1

15

A0

A1

A2

A3

B0

B1

B2

B3

Y0

Y1

Y2

Y3

SELECT

OUTPUT

ENABLE

DATA

OUTPUTS

NIBBLE

A INPUTS

NIBBLE

B INPUTS

PIN 8 = GND

FUNCTION TABLE

Inputs

Output

Outputs

Enable

Select

Y0 − Y3

X = don’t care

A0 − A3, B0 − B3 = the levels of the

respective Data−Word Inputs.

H

L

L

X

L

H

L

A0 −A3

B0 −B3

Figure 1. Pin Assignment

13

14

15

16

9

10

11

12

5

4

3

2

1

8

7

6

SELECT

Y0

B0

A0

Y1

B1

A1

GND

Y3

B3

A3

OUTPUT

ENABLE

B2

A2

Y2

Figure 2. Logic Diagram

ORDERING INFORMATION

Device

Package

MC74HC157AN

PDIP−16

500 Units / Rail

MC74HC157ANG

PDIP−16

(Pb−Free)

500 Units / Rail

MC74HC157AD

SOIC−16

48 Units / Rail

MC74HC157ADG

SOIC−16

(Pb−Free)

48 Units / Rail

MC74HC157ADR2

SOIC−16

2500 Units / Reel

MC74HC157ADR2G

SOIC−16

(Pb−Free)

2500 Units / Reel

MC74HC157ADTR2

TSSOP−16*

2500 Units / Reel

MC74HC157ADTR2G

TSSOP−16*

2500 Units / Reel

MC74HC157AFEL

SOEIAJ−16

2000 Units / Reel

MC74HC157AFELG

SOEIAJ−16

(Pb−Free)

2000 Units / Reel

†For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging

Specifications Brochure, BRD8011/D.

*This package is inherently Pb−Free.