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74AHCT138S16 PDF预览

74AHCT138S16

更新时间： 2024-11-20 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
9页 255K
描述
3 TO 8 LINE DECODER DEMULTIPLEXER

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74AHCT138S16 数据手册

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74AHCT138  
3 TO 8 LINE DECODER DEMULTIPLEXER  
Description  
Pin Assignments  
The 74AHCT138 is an advanced 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 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 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  
Supply Voltage Range from 4.5V to 5.5V  
Sinks or Sources 8mA at VCC = 4.5V  
Applications  
CMOS Low Power Consumption  
Memory chip select decoding  
Schmitt Trigger Action at All Inputs  
Demultiplexing  
Inputs Accept up to 6.0V  
Single line peripheral control  
ESD Protection Tested per JESD 22  
Allow simple serial bit streams from a microcontroller to control as  
many peripheral lines as needed  
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 9  
www.diodes.com  
June 2013  
© Diodes Incorporated  
74AHCT138  
Document number: DS35483 Rev. 2 - 2  
1234567...9

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