Datasheet > 74HC138N,652

74HC138N,652

更新时间： 2025-09-21 19:23:07

品牌	Logo	应用领域
恩智浦 - NXP		/
页数	文件大小	规格书
19页	209K
描述
电流 - 输出高、低:5.2mA;最小工作电压(V):2V;最大工作电压(V):6V;最大输出电流(mA):5.2mA;元器件封装:16-DIP;

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74HC138N,652 数据手册

74HC138; 74HCT138

3-to-8 line decoder/demultiplexer; inverting

Rev. 5 — 26 January 2015

Product data sheet

1. General description

The 74HC138; 74HCT138 decodes three binary weighted address inputs (A0, A1 and A2)

to eight mutually exclusive outputs (Y0 to Y7). The device features three enable inputs

(E1, E2 and E3). Every output will be HIGH unless E1 and E2 are LOW and E3 is HIGH.

This multiple enable function allows easy parallel expansion to a 1-of-32 (5 to 32 lines)

decoder with just four ‘138’ ICs and one inverter. The ‘138’ can be used as an eight output

demultiplexer by using one of the active LOW enable inputs as the data input and the

remaining enable inputs as strobes. Inputs include clamp diodes. This enables the use of

current limiting resistors to interface inputs to voltages in excess of V_CC

2. Features and benefits

 Complies with JEDEC standard no. 7A

 Input levels:

 For 74HC138: CMOS level

 For 74HCT138: TTL level

 Demultiplexing capability

 Multiple input enable for easy expansion

 Ideal for memory chip select decoding

 Active LOW mutually exclusive outputs

 ESD protection:

 HBM JESD22-A114F exceeds 2000 V

 MM JESD22-A115-A exceeds 200 V

 Multiple package options

 Specified from 40 C to +85 C and from 40 C to +125 C

3. Ordering information

Table 1.

Ordering information

Type number

Package

Temperature range Name

Description

Version

74HC138N

40 C to +125 C

DIP16

plastic dual in-line package; 16 leads (300 mil)

SOT38-4

74HCT138N

74HC138D

SO16

plastic small outline package; 16 leads;

body width 3.9 mm

SOT109-1

SOT338-1

74 HCT138D

74HC138DB

74HCT138DB

SSOP16

plastic shrink small outline package; 16 leads;

body width 5.3 mm

12 3 4 5 6 7...19

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74HC138N,652 替代型号

型号	品牌	替代类型	描述	数据表
CD74HC138EE4	TI	功能相似	High-Speed CMOS Logic 3- to 8-Line Decoder/ Demultiplexer Inverting and Noninverting
CD74HC138E	TI	功能相似	High Speed CMOS Logic 3-to-8 Line Decoder/ Demultiplexer Inverting and Non-Inverting
MC74HC138ANG	ONSEMI	功能相似	1−of−8 Decoder/ Demultiplexer

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74HC138PW-Q100,118	NEXPERIA	获取价格	元器件封装:16-TSSOP;
74HC138S16	DIODES	获取价格	3 TO 8 LINE DECODER DEMULTIPLEXER
74HC138S16-13	DIODES	获取价格	3 TO 8 LINE DECODER DEMULTIPLEXER
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