User Manual
CD74AC138/CD74AC238 are 3-to-8-line decoders/demultiplexers that utilize the Harris Advanced CMOS Logic technology. Both circuits have three binary select inputs (A0, A1, and A2). If the device is enabled, these inputs determine which one of the eight normally HIGH outputs of the AC/ACT138 will go LOW or which on of the normally LOW outputs of the AC/ACT238 will go HIGH.
Datasheet
CD54ACT138 and CD74ACT138 are 3-line to 8-line decoders/demultiplexers designed for high-performance memory decoding and data routing applications. They have short propagation delay times and reduced power consumption, and can be used to minimize the effects of system decoding. They incorporate three enable inputs to simplify cascading and/or data reception. They feature balanced propagation delays and SCR-Latchup-resistant CMOS process and circuit design. They support a fanout of up to 15 F devices and exceed 2kV ESD protection.
