DM74ALS251中文资料3-STATE 1-of-8 Line Data Selector/Multiplexer数据手册ONSEMI规格书

描述 Description

General Description
This Data Selector/Multiplexer contains full on-chip decoding to select one-of-eight data sources as a result of a unique three-bit binary code at the Select inputs. Two complementary outputs provide both inverting and non-inverting buffer operation. An Output Control input is provided which, when at the high level, places both outputs in the high impedance OFF-State. In order to prevent bus access conflicts, output disable times are shorter than output enable times. The Select input buffers incorporate internal overlap features to ensure that select input changes do not cause invalid output transients.

特性 Features

■ Advanced oxide-isolated, ion-implanted Schottky TTL process
■ Switching performance is guaranteed over full temperature and VCC supply range
■ Pin and functional compatible with LS family counterpart
■ Improved output transient handling capability
■ Output control circuitry incorporates power-up 3-STATE feature

简介

DM74ALS251属于集成电路（IC）的信号开关多路复用器解码器。由制造生产的DM74ALS251信号开关，多路复用器，解码器逻辑型信号开关、多路复用器和编码器 IC 可用于对以数字格式表示数据的电信号进行路由和选择。这些器件与设计用于模拟信号的类似产品有所不同，它们保留的信息表示为两个电状态之一，而不是两个外部界限内的无穷变化量。