SN74ALS156D集成电路（IC）的信号开关多路复用器解码器规格书PDF中文资料

SN74ALS156D属于集成电路（IC）的信号开关多路复用器解码器。由德州仪器制造生产的SN74ALS156D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。

Applications:

− Dual 2-Line to 4-Line Decoder

− Dual 1-Line to 4-Line Demultiplexer

− 3-Line to 8-Line Decoder

− 1-Line to 8-Line Demultiplexer

Individual Strobes Simplify Cascading for

Decoding or Demultiplexing Larger Words

Package Options Include Plastic

Small-Outline (D) Packages and Standard

Plastic (N) 300-mil DIPs

description

One of the main applications of the SN74ALS156 is as a dual 1-line to 4-line decoder/demultiplexer with

individual strobes (G) and common binary-address inputs in a single 16-pin package. When both sections are

enabled, the common binary-address inputs sequentially select and route associated input data to the

appropriate output of each section. The individual strobes permit enabling or disabling each of the 4-bit sections,

as desired.

Data applied to input 1C is inverted at its outputs and data applied at input 2C is not inverted through its outputs.

The inverter following the 1C data input permits use of the SN74ALS156 as a 3-line to 8-line demultiplexer

without external gating. All inputs are clamped with high-performance Schottky diodes to suppress line ringing

and simplify system design.

The SN74ALS156 is characterized for operation from 0°C to 70°C.