CD74AC238集成電路（IC）的信號開關(guān)多路復(fù)用器解碼器規(guī)格書PDF中文資料

CD74AC238屬于集成電路（IC）的信號開關(guān)多路復(fù)用器解碼器。由德州儀器制造生產(chǎn)的CD74AC238信號開關(guān)，多路復(fù)用器，解碼器邏輯型信號開關(guān)、多路復(fù)用器和編碼器 IC 可用于對以數(shù)字格式表示數(shù)據(jù)的電信號進行路由和選擇。這些器件與設(shè)計用于模擬信號的類似產(chǎn)品有所不同，它們保留的信息表示為兩個電狀態(tài)之一，而不是兩個外部界限內(nèi)的無窮變化量。

1 Features

? AC types feature 1.5V to 5.5V operation and

balanced noise immunity at 30% of the supply

voltage

? Speed of bipolar F, AS, and S, with significantly

reduced power consumption

? Designed specifically for high-speed memory

decoders and data-transmission systems

? Incorporates three enable inputs to simplify

cascading and/or data reception

? Balanced propagation delays

? ±24mA output drive current

– Fanout to 15 F devices

? SCR-latchup-resistant CMOS process and circuit

design

? Exceeds 2kV ESD protection per MIL-STD-883,

method 3015

2 Description

The CD74AC238 decoder/demultiplexer is designed

for high-performance memory-decoding and datarouting

applications that require very short

propagation-delay times. In high-performance

memory systems, this decoder can be used to

minimize the effects of system decoding.