Electrical Engineering › Section T · Combinational logic › Topic T.4
Multiplexers, demultiplexers, and parity
Digital systems constantly route data: many sources share one wire, one wire feeds many destinations, and every transfer risks a flipped bit. Multiplexers, demultiplexers and parity circuits handle all three.
In this topic
- The multiplexer: a digital selector switch
- Multiplexer chips and expansion
- The multiplexer as a function generator
- Worked example: a vote circuit from a 4-input mux
- Demultiplexers
- Parity
- Worked example: generating and checking parity
- Glitches and strobing
- Common mistakes to avoid
- Key takeaways
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