Datasheet > 74AHC138

74AHC138

更新时间： 2024-11-04 12:52:39

品牌	Logo	应用领域
美台 - DIODES		解码器解复用器
页数	文件大小	规格书
10页	307K
描述
3-TO-8 LINE DECODER DEMULTIPLEXER

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74AHC138 数据手册

74AHC138

3-TO-8 LINE DECODER DEMULTIPLEXER

Description

Pin Assignments

The 74AHC138 is an advanced high speed CMOS device.

The device accepts a three bit binary weighted address on input

pins A0, A1 and A2 and when enabled will produce one active low

output with the remaining seven being high.

There are two active LOW enable inputs E1 and E2, and one active

HIGH enable input E3. The disabled device state results in all

outputs being high. The enable state occurs with E 1 and E 2

asserted low and E3 asserted high.

The multiple enable lines allow for the parallel expansion of

decoders to create 4-to-16 line versions with no additional parts and

5-to-32 versions with the addition of a single inverter.

Applications

Features

•

Memory chip select decoding

•

Wide Supply Voltage Range from 2.0 V to 5.5 V

Sinks or sources 8mA at Vcc = 4.5V

CMOS low power consumption

Demultiplexing

Single line peripheral control

Allow simple serial bit streams from a microcontroller to control

as many peripheral lines as needed.

Schmitt Trigger Action at All Inputs

Inputs accept up to 5.5 V

ESD Protection Tested per JESD 22

Exceeds 200-V Machine Model (A115-A)

Exceeds 2000-V Human Body Model (A114-A)

Exceeds 1000-V Charged Device Model (C101C)

Latch-Up Exceeds 250mA per JESD 78, Class II

SO16 Available in “Green” Molding Compound

(no Br, Sb)

•

Lead-Free Finish; RoHS Compliant (Notes 1 & 2)

Notes:

1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.

2. See http://www.diodes.com for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green" and Lead-free.

3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl)

and < 1000 ppm antimony compounds.

Click for Ordering Information

1 of 10

www.diodes.com

June 2013

74AHC138

Document number: DS35482 Rev. 2 - 2

12 3 4 5 6 7...10

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与74AHC138相关器件

型号	品牌	获取价格	描述	数据表
74AHC138BQ	NEXPERIA	获取价格	3-to-8 line decoder/demultiplexer; invertingProduction
74AHC138BQ-Q100	NEXPERIA	获取价格	Automotive product qualification in accordance with AEC-Q100
74AHC138D	NXP	获取价格	3-to-8 line decoder/demultiplexer; inverting
74AHC138D	NEXPERIA	获取价格	3-to-8 line decoder/demultiplexer; invertingProduction
74AHC138D-Q100	NEXPERIA	获取价格	Automotive product qualification in accordance with AEC-Q100
74AHC138PW	NXP	获取价格	3-to-8 line decoder/demultiplexer; inverting
74AHC138PW	NEXPERIA	获取价格	3-to-8 line decoder/demultiplexer; invertingProduction
74AHC138PW,118	NXP	获取价格	74AHC(T)138 - 3-to-8 line decoder/demultiplexer; inverting TSSOP 16-Pin
74AHC138PWDH	NXP	获取价格	3-to-8 line decoder/demultiplexer; inverting
74AHC138PW-Q100	NEXPERIA	获取价格	Automotive product qualification in accordance with AEC-Q100