الوصف
The 74LS139 (such as the Renesas HD74LS139P) is a high-speed, dual, independent 2-to-4 line decoder/demultiplexer in a 16-pin DIP package, featuring Schottky-clamped inputs for high performance in memory and data routing applications. It provides two separate decoders, each with two binary select inputs and four mutually exclusive, active-low outputs
Features
- Dual Functionality: Contains two independent 2-to-4 line decoders/demultiplexers in one package.
- Schottky Clamped: Inputs are clamped with high-performance Schottky diodes to suppress line ringing and simplify system design.
- High Speed: Designed for high-speed applications like memory decoders and data transmission systems.
- Active-Low Outputs: All four outputs for each decoder are active-low.
- Demultiplexing Capability: The active-low enable input can be used as a data line for demultiplexing applications.
- Standard TTL Design: Operates on standard TTL switching voltages.
- DIP Package: The HD74LS139P comes in a standard 16-pin Dual In-line Package (DIP)