onsemi Signal Switches, Multiplexers, Decoders MC74HCT138ANG

The MC74HCT138ANG is a 1-of-8 decoder/demultiplexer that features high-performance silicon-gate CMOS technology. It is designed to decode a three-bit address into one of eight active outputs and is compatible with TTL and NMOS input levels. The device includes three chip select inputs, allowing for flexible demultiplexing and cascading functions. It operates within a voltage range of 4.5 to 5.5 V and has a low input current of 1.0 µA, making it suitable for low-power applications. This decoder can drive up to 10 LSTTL loads and directly interfaces with CMOS, NMOS, and TTL outputs. The chip complexity is equivalent to 30.5 gates, and it complies with JEDEC Standard No. 7A. The MC74HCT138ANG is available in various package options, including Pb-free versions, which may be relevant for engineers concerned with environmental regulations.