CD74ACT157

QUADRUPLE 2LINE TO 1LINE DATA SELECTOR/MULTIPLEXER

SCHS340B − MARCH 2003 - REVISED JUNE 2003

1

POST OFFICE BOX 655303

Significantly Reduced Power Consumption

− Fanout to 15 F Devices

Circuit Design

MIL-STD-883, Method 3015

description/ordering information

The CD74ACT157 features a common strobe (G) input. When the strobe is high, all outputs are low. When the

strobe is low, a 4-bit word is selected from one of two sources and is routed to the four outputs. The device

provides true data.

ORDERING INFORMATION

TA

PACKAGE†

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

PDIP − E

Tube

CD74ACT157E

CD74ACT157E

SOIC − M

Tube

CD74ACT157M

ACT157M

−55

°C to 125°C

SOIC − M

Tape and reel

CD74ACT157M96

ACT157M

−55 C to 125 C

TSSOP − PW

Tube

CD74ACT157PW

HM157

TSSOP − PW

Tape and reel

CD74ACT157PWR

HM157

† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines

are available at www.ti.com/sc/package.

FUNCTION TABLE

INPUTS

OUTPUT

G

A/B

A

B

OUTPUT

Y

H

X

X

X

L

L

LL

X

L

L

LH

X

H

L

HX

L

L

L

H

X

H

H

Copyright

 2003, Texas Instruments Incorporated

PRODUCTION DATA information is current as of publication date.

Products conform to specifications per the terms of Texas Instruments

standard warranty. Production processing does not necessarily include

testing of all parameters.

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

A /B

1A

1B

1Y

2A

2B

2Y

GND

G

4A

4B

4Y

3A

3B

3Y

E, M, OR PW PACKAGE

(TOP VIEW)