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Universal logic gates

  • 28-02-2014 01:21AM
    #1
    techintraining
    Registered Users, Registered Users 2 Posts: 35 ✭


    Can anybody tell me what the step by step truth table is For this? :confused:
    Tagged:


Comments

  • #2
    maki
    Registered Users, Registered Users 2 Posts: 774 ✭✭✭maki


    techintraining wrote: »
    Can anybody tell me what the step by step truth table is For this? :confused:

    The first gate is your standard NOR gate, so I'll assume you'll know or be able to find truth tables for that. X and Y will be the result from the first gate, so either both 0 or both 1.
    If they're both 0, F is 1, or if they're both 1, F is 0.


  • #3
    PrzemoF
    Registered Users, Registered Users 2 Posts: 1,929 ✭✭✭PrzemoF


    Make a table with columns A, B, X, Y, F

    Put all 4 combinations into A and B and analyse step-by-step.

    NOR gate is an OR gate + NOT gate

    https://en.wikipedia.org/wiki/NOR_logic#NOT_gate


  • #4
    ZENER
    Registered Users, Registered Users 2 Posts: 6,167 ✭✭✭ZENER


    The circuit shown is logically an OR gate as in NOT a NOR gate.

    A B X Y F
    0 0 1 1 0
    0 1 0 0 1
    1 0 0 0 1
    1 1 0 0 1

    Ken


  • #5
    techintraining
    Registered Users, Registered Users 2 Posts: 35 ✭techintraining


    thanks lads


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