74ACT11139

DUAL 2LINE TO 4LINE DECODER/DEMULTIPLEXER

SCAS175A − SEPTEMBER 1991 − REVISED APRIL 1996

1

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

POST OFFICE BOX 1443

• HOUSTON, TEXAS 77251−1443

D Inputs Are TTL-Voltage Compatible

D Designed Specifically for High-Speed

Memory Decoders and Data Transmission

Systems

D Incorporates Two Enable Inputs to Simplify

Cascading and/or Data Reception

D Fully Synchronous Operation for Counting

D Center-Pin VCC and GND Configurations

Minimize High-Speed Switching Noise

D EPIC  (Enhanced-Performance Implanted

CMOS) 1-

µm Process

D 500-mA Typical Latch-Up Immunity at

125

°C

D Package Options Include Plastic

Small-Outline (D) and Thin Shrink

Small-Outline (PW) Packages, and

Standard Plastic 300-mil DIPs (N)

description

The 74ACT11139 is designed for use in high-performance memory-decoding or data-routing applications that

require very short propagation delay times. In high-performance memory systems, this decoder is used to

minimize the effects of system decoding.

The 74ACT11139 is composed of two individual 2-line to 4-line decoders in a single package. The active-low

enables (1G or 2G) can be used as data lines in demultiplexing applications. This decoder/demultiplexer

features fully buffered inputs, each of which represents only one normalized load to its driving circuit.

The 74ACT11139 is characterized for operation from −40

°C to 85°C.

FUNCTION TABLE

INPUTS

OUTPUTS

G

B

A

Y0

Y1

Y2

Y3

H

X

X

H

H

H

H

L

LLL

HHH

L

LH

H

LH

H

L

HLH

HLH

L

H

H

H

H

H

L

Copyright

 1996, 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.

EPIC is a trademark of Texas Instruments Incorporated.

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

1Y1

1Y2

1Y3

GND

2Y0

2Y1

2Y2

2Y3

1Y0

1A

1B

1G

VCC

2G

2A

2B

D, N, OR PW PACKAGE

(TOP VIEW)