74ALS139 Description
The 74ALS139 is a dual 1-of-4 decoder/demultiplexer. This device has two independent decoders, each accepting two binary weighted inputs (A0n, A1n) and providing four mutually exclusive active-Low outputs (Q0n Q3n). Each decoder has an active-Low enable (E).
74ALS139 Key Features
- Demultiplexing capability
- Two independent 1-of-4 decoders
- Multi-function capability