Decoding the 74154 Datasheet A Deep Dive
The 74154 is a 4-line to 16-line decoder/demultiplexer IC. In simpler terms, it takes a 4-bit binary input and activates one of 16 unique output lines corresponding to that input. Think of it like a sophisticated switchboard where a specific combination of four signals tells it which of the 16 output channels to connect. This capability is incredibly useful in a variety of digital systems for tasks such as:- Address decoding in memory systems
- Selecting specific devices or functions in a complex circuit
- Generating unique control signals
- Multiplexing data to different destinations
| Feature | Description |
|---|---|
| Input Lines | 4 Binary Inputs (A, B, C, D) |
| Output Lines | 16 Active-Low Outputs (0 through 15) |
| Enable Inputs | Two Active-Low Enable Inputs (G1, G2) |