PPT Slide

3 – Combinational Logic Implementation

© 1996 Gaetano Borriello

Demultiplexers as general-purpose logic

• A n:2n decoder can implement any function of n variables

  • with the variables used as control inputs
  • the enable inputs tied to 1 and
  • the appropriate minterms summed to form the function

39

demultiplexer generates appropriate

minterm based on control signals

(it "decodes" control signals)

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