N74456D中文资料Buffers / drivers数据手册恩XP规格书

描述 Description

DESCRIPTION
The 74F455 and 74F456 are octal buffers and line drivers with parity generation/checking designed to be employed as memory address drivers, clock drivers and bus-oriented transmitters/receivers. These parts include parity generator/checker to improve PC board density.FEATURES
•High impedance NPN base inputs for reduced loading (40µA in High and Low states)
•74F456 combines 74F244 and 74F280A functions in one package
•74F456 is a center pin version of the 74F656A
•74F456 Non-Inverting
•3-State outputs sink 64mA and source 15mA
•24-pin plastic Slim DIP (300 mil) package
•Broadside pinout simplifies PC board layout

特性 Features

•High impedance NPN base inputs for reduced loading (40µA in High and Low states)
•74F456 combines 74F244 and 74F280A functions in one package
•74F456 is a center pin version of the 74F656A
•74F456 Non-Inverting
•3-State outputs sink 64mA and source 15mA
•24-pin plastic Slim DIP (300 mil) package
•Broadside pinout simplifies PC board layout