Datasheet > SN74HC138QPWRG4Q1

SN74HC138QPWRG4Q1

更新时间： 2024-01-07 00:18:38

品牌	Logo	应用领域
德州仪器 - TI		/
页数	文件大小	规格书
14页	814K
描述
3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS

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SN74HC138-Q1

3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS

SCLS533A − AUGUST 2003 − REVISED SEPTEMBER 2008

D OR PW PACKAGE

(TOP VIEW)

Qualified for Automotive Applications

ESD Protection Exceeds 2000 V Per

MIL-STD-883, Method 3015; Exceeds 200 V

Using Machine Model (C = 200 pF, R = 0)

V_CC

Targeted Specifically for High-Speed

Memory Decoders and Data-Transmission

Systems

G2A

G2B

GND

12 Y3

2-V to 6-V V Operation

Outputs Can Drive Up To 10 LSTTL Loads

Low Power Consumption, 80-µA Max I

Typical t = 15 ns

4-mA Output Drive at 5 V

Low Input Current of 1 µA Max

Incorporate Three Enable Inputs to Simplify

Cascading and/or Data Reception

description/ordering information

The SN74HC138 is designed to be used in high-performance memory-decoding or data-routing applications

requiring very short propagation delay times. In high-performance memory systems, this decoder 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 this decoder and the enable time of the memory usually are less than the typical access

time of the memory. This means that the effective system delay introduced by the decoders is negligible.

The conditions at the binary-select inputs at 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.

{

ORDERING INFORMATION

ORDERABLE

PART NUMBER

TOP-SIDE

MARKING

‡

PACKAGE

SOIC − D

Tape and reel

SN74HC138QDRQ1

SN74HC138QPWRQ1

HC138Q1

−40°C to 125°C

TSSOP − PW

†

‡

For the most current package and ordering information, see the Package Option Addendum at the end of this

document, or see the TI web site at www.ti.com.

Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.

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.

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...14

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SN74HC138QPWRG4Q1 替代型号

型号	品牌	替代类型	描述	数据表
SN74HC139PWR	TI	类似代替	DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SN74LVC138APW	TI	类似代替	3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
SN74HC138PWR	TI	类似代替	3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS

与SN74HC138QPWRG4Q1相关器件

型号	品牌	获取价格	描述	数据表
SN74HC138QPWRQ1	TI	获取价格	3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS
SN74HC139	TI	获取价格	DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SN74HC139D	TI	获取价格	DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SN74HC139DBR	TI	获取价格	DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SN74HC139DBRE4	TI	获取价格	DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SN74HC139DBRG4	TI	获取价格	DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SN74HC139DE4	TI	获取价格	DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SN74HC139DG4	TI	获取价格	DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SN74HC139DR	TI	获取价格	DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS
SN74HC139DRE4	TI	获取价格	DUAL 2-LINE TO 4-LINE DECODERS/DEMULTIPLEXERS

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