Datasheet > 74HCT138T16

74HCT138T16

更新时间： 2024-11-30 12:27:51

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	246K
描述
3 TO 8 LINE DECODER DEMULTIPLEXER

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74HCT138T16 数据手册

74HCT138

3 TO 8 LINE DECODER DEMULTIPLEXER

Description

Pin Assignments

The 74HCT138 is a high speed CMOS device that is designed to be

pin compatable with 74LS low power Schottky types.

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 remaing 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 E1 and E2 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.

Features

Applications

•

Wide Supply Voltage Range from 4.5V to 5.5V

Sinks or sources 8mA at V_CC= 4.5V

•

Memory chip select decoding

Demultiplexing

CMOS low power consumption

Single line peripheral control

Schmitt Trigger Action at All Inputs

Allow simple serial bit streams from a microcontroller to control as

many peripheral lines as needed.

Inputs accept up to 6.0V

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

Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)

Halogen and Antimony Free. “Green” Device (Note 3)



•



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

<1000ppm antimony compounds.

Click here for ordering information, located at the end of datasheet

1 of 10

www.diodes.com

June 2013

74HCT138

Document number: DS35489 Rev. 3 - 2

12 3 4 5 6 7...10

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