1. General description

The 74LVC157A is a quad 2-input multiplexer. The device features select (S) and enable E inputs.

A HIGH on S selects data source 1, a LOW data source 0. A HIGH on E forces all the outputs (1Y

to 4Y) LOW. Inputs can be driven from either 3.3 V or 5 V devices. This feature allows the use of

these devices as translators in mixed 3.3 V and 5 V applications.

Schmitt-trigger action at all inputs makes the circuit tolerant of slower input rise and fall times.

2. Features and benefits

• Overvoltage tolerant inputs to 5.5 V

• Wide supply voltage range from 1.2 V to 3.6 V

• CMOS low power consumption

• Direct interface with TTL levels

• Complies with JEDEC standard:

• • JESD8-7A (1.65 V to 1.95 V)

• JESD8-5A (2.3 V to 2.7 V)

• JESD8-C/JESD36 (2.7 V to 3.6 V)

• ESD protection:

• HBM JESD22-A114F exceeds 2000 V

• MM JESD22-A115-B exceeds 200 V

• CDM JESD22-C101E exceeds 1000 V

• Multiple package options

• Specified from -40 °C to +85 °C and -40 °C to +125 °C

74LVC157A属于集成电路（IC） > 信号开关，多路复用器，解码器。安世半导体(中国)有限公司制造生产的74LVC157A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。