SN74HCT157DR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

SN74HCT157DR属于集成电路（IC）的信号开关多路复用器解码器。由美国德州仪器公司制造生产的SN74HCT157DR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。

Operating Voltage Range of 4.5 V to 5.5 V

High-Current Outputs Drive Up To 15

LSTTL Loads

Typical tpd = 15 ns

Low Power Consumption, 80-μA Max ICC

±6-mA Output Drive at 5 V

Low Input Current of 1 μA Max

Inputs Are TTL-Voltage Compatible

Buffered Inputs and Outputs

description/ordering information

These data selectors/multiplexers contain inverters and drivers to supply full data selection to the four output

gates. A separate strobe (G) input is provided. A 4-bit word is selected from one of two sources and is routed

to the four outputs.