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74ACT11139 Datasheet

  • 74ACT11139

  • DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER

  • 6頁

  • TI

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74ACT11139
DUAL 2-LINE TO 4-LINE DECODER/DEMULTIPLEXER
SCAS175A 鈥?SEPTEMBER 1991 鈥?REVISED APRIL 1996
D
D
D
D
D
D
D
D
Inputs Are TTL-Voltage Compatible
Designed Specifically for High-Speed
Memory Decoders and Data Transmission
Systems
Incorporates Two Enable Inputs to Simplify
Cascading and/or Data Reception
Fully Synchronous Operation for Counting
Center-Pin V
CC
and GND Configurations
Minimize High-Speed Switching Noise
EPIC
鈩?/div>
(Enhanced-Performance Implanted
CMOS) 1-碌m Process
500-mA Typical Latch-Up Immunity at
125擄C
Package Options Include Plastic
Small-Outline (D) and Thin Shrink
Small-Outline (PW) Packages, and
Standard Plastic 300-mil DIPs (N)
D, N, OR PW PACKAGE
(TOP VIEW)
1Y1
1Y2
1Y3
GND
2Y0
2Y1
2Y2
2Y3
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1Y0
1A
1B
1G
V
CC
2G
2A
2B
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 鈥?0擄C to 85擄C.
FUNCTION TABLE
INPUTS
G
H
L
L
L
L
B
X
L
L
H
H
A
X
L
H
L
H
Y0
H
L
H
H
H
OUTPUTS
Y1
H
H
L
H
H
Y2
H
H
H
L
H
Y3
H
H
H
H
L
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.
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.
Copyright
1996, Texas Instruments Incorporated
POST OFFICE BOX 655303
鈥?/div>
DALLAS, TEXAS 75265
1

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