描述 Description

The MC74AC253/74ACT253 is a dual 4-input multiplexer with 3-state outputs. Itcan select two bits of data from four sources using common select inputs. Theoutputs may be individually switched to a high impedance state with a HIGH on therespective Output Enable (OE) inputs, allowing the outputs to interface directly withbus oriented systems.

特性 Features

? Multifunctional Capability
? Noninverting 3-State Outputs
? Outputs Source/Sink 24 mA
? ACT253 Has TTL Compatible Inputs
? These devices are available in Pb-free package(s). Specifications herein apply to both standard and Pb-free devices. Please see our website at www.onsemi.com for specific Pb-free orderable part numbers, or contact your local ON Semiconductor sales office or representative.

簡介

MC74ACT253屬于集成電路（IC）的信號開關(guān)多路復(fù)用器解碼器。由制造生產(chǎn)的MC74ACT253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。