Need help understanding nand gates

Discussion in 'Homework Help' started by nyasha, Apr 14, 2009.

  1. nyasha

    Thread Starter Active Member

    Mar 23, 2009
    90
    1
    Guys l need your help l got a final tomorrow. What l don't understand is how did the instructor simplify the second circuit with nand gates, l mean the one with the function G


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    Guys don't worry l figured it out. He used demorgan's law
     
    Last edited: Apr 14, 2009
  2. Engr1001

    New Member

    Apr 15, 2009
    3
    0
    I logic there are some identities

    A nand B equals A/ or B/

    A nand B
    0 0 = 1
    1 0 = 1
    0 1 = 1
    1 1 = 0

    This truth table is the same as A/ or B/

    Once you apply this to the output gate the inversions cancel each other out to yield the results desired.
     
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