Multiplexers and Multiplexing
What is a Multiplexer?
A multiplexer (MUX) is a digital circuit that selects one of several input signals and forwards it to a single output is used to share a single communication channel among multiple devices.
Types of Multiplexers
- 2-to-1 line multiplexer
- 4-to-1 line multiplexer
- 8-to-1 line multiplexer
- 16-to-1 line multiplexer
Multiplexer Truth Table
| S1 | S0 | I0 | I1 | I2 | I3 | Output |
|---|---|---|---|---|---|---|
| 0 | 0 | 1 | X | X | X | 1 |
| 0 | 1 | X | 1 | X | X | 1 |
| 1 | 0 | X | X | 1 | X | 1 |
| 1 | 1 | X | X | X | 1 | 1 |
Applications
- Telecommunication systems
- Computer networks
- Data transmission and reception
- Digital signal processing
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