Multiplexers

Example: A 2:1 Mux

1) Z = SIn1 + S'Ino

2) Two alternative forms

for the truth table

functional truth table

logical truth table

• General concept

  • 2n data inputs
  • n control inputs (called "selects")
  • 1 output

• Connect one of 2n inputs to the single output

  • Select inputs “address” the input to be connected to the output

Previous slide

Next slide

Back to first slide

View graphic version