Multiplexers/selectors

3 – Combinational Logic Implementation

© 1996 Gaetano Borriello

• Multiplexers/selectors: general concept

  • 2n data inputs, n control inputs (called "selects"), 1 output
  • used to connect 2n points to a single point
  • control signal pattern forms binary index of input connected to output

31

two alternative forms

for a 2:1 Mux truth table

functional form

logical form

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