4x1 Multiplexer
A 4x1 multiplexer (or mux) is a device that selects one of several analog or digital input signals and forwards the selected input into a single line.
4x1 Multiplexer symbol
4x1 Multiplexer circuits
4x1 Multiplexer truth table
| S1 | S0 | Q |
|---|---|---|
| 0 | 0 | D0 |
| 0 | 1 | D1 |
| 1 | 0 | D2 |
| 1 | 1 | D3 |