multiplexer

Discussion in 'Homework Help' started by arvind, Nov 4, 2004.

  1. arvind

    Thread Starter Member

    Nov 4, 2004
    18
    0
    :rolleyes: :rolleyes: :rolleyes: :rolleyes:
    hi,
    can someone tell me about multiplexers. esp i want to know about 8 to 1 multiplexer, its output boolean function
     
  2. bobo

    New Member

    Nov 1, 2004
    2
    0
    A digital multiplexer allows you to select between several inputs.
    An 8 to 1 MUX uses 3 selection inputs to allow a selection between [000] (or logic 0), and [111] (or logic 7). The three select inputs A, B, and C are gated with the 8 data input lines, D0 through D7 such that only the line that corresponds to the selected input is passed out. Therefore the boolean truth table for the 8 to 1 MUX is:

    C B A OUT
    0 0 0 D0
    0 0 1 D1
    0 1 0 D2
    0 1 1 D3
    1 0 0 D4
    1 0 1 D5
    1 1 0 D6
    1 1 1 D7
     
  3. arvind

    Thread Starter Member

    Nov 4, 2004
    18
    0
    hi bobo,
    thnx very much
    my best
    arvind
    :) :) :) :) :) :) :D :D :D :D :D :D :D :rolleyes: :rolleyes: :rolleyes: :rolleyes: :rolleyes:
     
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