General description

The 74LV138 is a low-voltage Si-gate CMOS device that is pin and function compatible with 74HC138 and 74HCT138. The 74LV138 is a 3-to-8 line decoder/demultiplexer. It accepts three binary weighted address inputs (A0, A1 and A2) and, when enabled, provides eight mutually exclusive active LOW outputs (Y0 to Y7).

Features

■ Wide operating voltage: 1.0 V to 5.5 V

■ Optimized for low voltage applications: 1.0 V to 3.6 V

■ Accepts TTL input levels between VCC = 2.7 V and VCC = 3.6 V

■ Typical output ground bounce < 0.8 V at VCC = 3.3 V and Tamb = 25 °C

■ Typical HIGH-level output voltage (VOH) undershoot: > 2 V at VCC = 3.3 V and Tamb = 25 °C

■ Demultiplexing capability

■ Multiple input enable for easy expansion

■ Ideal for memory chip select decoding

■ Active LOW mutually exclusive outputs

■ ESD protection:

◆ HBM JESD22-A114E exceeds 2000 V

◆ MM JESD22-A115-A exceeds 200 V

■ Multiple package options

■ Specified from −40 °C to +85 °C and from −40 °C to +125 °C

74LV138PW属于集成电路（IC） > 信号开关，多路复用器，解码器。恩智浦半导体公司制造生产的74LV138PW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。