Datasheet > SNJ54ALS139W

SNJ54ALS139W

更新时间： 2024-11-20 23:03:19

品牌	Logo	应用领域
德州仪器 - TI		解码器解复用器
页数	文件大小	规格书
13页	485K
描述
DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS

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SNJ54ALS139W 数据手册

SN54ALS139, SN74ALS139

DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS

SDAS204A – APRIL 1982 – REVISED DECEMBER 1994

SN54ALS139 . . . J PACKAGE

SN74ALS139 . . . D OR N PACKAGE

(TOP VIEW)

• Designed Specifically for High-Speed

Memory Decoders and Data Transmission

Systems

• Incorporate Two Enable Inputs to Simplify

1Y0

1Y1

1Y2

1Y3

GND

Cascading and/or Data Reception

• Package Options Include Plastic

Small-Outline (D) Packages, Ceramic Chip

Carriers (FK), and Standard Plastic (N) and

Ceramic (J) 300-mil DIPs

2Y0

2Y1

2Y2

2Y3

description

The ′ALS139 are dual 2-line to 4-line

decoders/demultiplexers designed for use in

high-performance memory-decoding or data-

routing applications requiring very short

propagation delay times. In high-performance

memory systems, these devices can minimize the

effects of system decoding. When employed with

high-speed memories utilizing a fast-enable

circuit, the delay times of these decoders and the

enable time of the memory are usually less than

the typical access time of the memory. Therefore,

the effective system delay introduced by the

Schottky-clamped system decoder is negligible.

SN54ALS139 . . . FK PACKAGE

(TOP VIEW)

20 19

18 2A

1Y0

2Y0

2Y1

1Y1

1Y2

9 10 11 12 13

The ′ALS139 comprise two individual 2-line to

4-line decoders in a single package. The

active-low enable (G) input can be used as a data

line in demultiplexing applications. These

NC – No internal connection

decoders/demultiplexers feature fully buffered inputs, each of which represents only one normalized load to its

driving circuit. All inputs are clamped with high-performance Schottky diodes to suppress line ringing and

simplify system design.

The SN54ALS139 is characterized for operation over the full military temperature range of –55°C to 125°C. The

SN74ALS139 is characterized for operation from 0°C to 70°C.

FUNCTION TABLE

INPUTS

OUTPUTS

SELECT

ENABLE

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.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...13

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与SNJ54ALS139W相关器件

型号	品牌	获取价格	描述	数据表
SNJ54ALS151FK	TI	获取价格	1-OF-8 DATA SELECTORS/MULTIPLEXERS
SNJ54ALS151J	TI	获取价格	1-OF-8 DATA SELECTORS/MULTIPLEXERS
SNJ54ALS151J-00	TI	获取价格	ALS SERIES, 8 LINE TO 1 LINE MULTIPLEXER, COMPLEMENTARY OUTPUT, CDIP16
SNJ54ALS151W	TI	获取价格	1-OF-8 DATA SELECTORS/MULTIPLEXERS
SNJ54ALS153J	TI	获取价格	双路 4 选 1 数据选择器/多路复用器 \| J \| 16 \| -55 to 125
SNJ54ALS153W	TI	获取价格	双路 4 选 1 数据选择器/多路复用器 \| W \| 16 \| -55 to 125
SNJ54ALS157AFK	TI	获取价格	QUADRUPLE 1-OF-2 DATA SELECTORS/MULTIPLEXERS
SNJ54ALS157AJ	TI	获取价格	QUADRUPLE 1-OF-2 DATA SELECTORS/MULTIPLEXERS
SNJ54ALS157AW	TI	获取价格	QUADRUPLE 1-OF-2 DATA SELECTORS/MULTIPLEXERS
SNJ54ALS157J-00	TI	获取价格	ALS SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, CDIP16

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