Datasheet > SN54AHC138_02

SN54AHC138_02

更新时间： 2024-11-04 05:18:23

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
9页	135K
描述
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS

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SN54AHC138_02 数据手册

SN54AHC138, SN74AHC138

3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS

SCLS258J – DECEMBER 1995 – REVISED FEBRUARY 2002

SN54AHC138 . . . J OR W PACKAGE

SN74AHC138 . . . D, DB, DGV, N, NS, OR PW PACKAGE

(TOP VIEW)

Operating Range 2-V to 5.5-V V

Designed Specifically for High-Speed

Memory Decoders and Data-Transmission

Systems

15 Y0

Incorporate Three Enable Inputs to Simplify

Cascading and/or Data Reception

G2A

G2B

Latch-Up Performance Exceeds 250 mA Per

JESD 17

ESD Protection Exceeds JESD 22

– 2000-V Human-Body Model (A114-A)

– 200-V Machine Model (A115-A)

GND

– 1000-V Charged-Device Model (C101)

SN54AHC138 . . . FK PACKAGE

(TOP VIEW)

description

The ’AHC138 decoders/demultiplexers are

designed for high-performance memory-decoding

and data-routing applications that require very

1 20 19

G2A

short

propagation-delay

times.

17 Y2

high-performance memory systems, these

decoders can be used to 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

thetypicalaccesstimeofthememory. Thismeans

that the effective system delay introduced by the

decoders is negligible.

G2B

9 10 11 12 13

NC – No internal connection

The conditions at the binary-select inputs and the three enable inputs select one of eight output lines. Two

active-low and one active-high enable inputs reduce the need for external gates or inverters when expanding.

A 24-line decoder can be implemented without external inverters, and a 32-line decoder requires only one

inverter. An enable input can be used as a data input for demultiplexing applications.

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.

On products compliant to MIL-PRF-38535, all parameters are tested

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

unless otherwise noted. On all other products, production

testing of all parameters.

processing does not necessarily include testing of all parameters.

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

12 3 4 5 6 7...9

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与SN54AHC138_02相关器件

型号	品牌	获取价格	描述	数据表
SN54AHC138_15	TI	获取价格	3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
SN54AHC138FK	TI	获取价格	3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
SN54AHC138FKR	TI	获取价格	AHC SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CQCC20, CERAMIC, LCC-20
SN54AHC138J	TI	获取价格	3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
SN54AHC138W	TI	获取价格	3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
SN54AHC138WR	TI	获取价格	AHC SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, CDFP16, CERAMIC, FP-16
SN54AHC139	TI	获取价格	DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SN54AHC139_07	TI	获取价格	DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SN54AHC139FK	TI	获取价格	DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SN54AHC139J	TI	获取价格	DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS

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