Full Adder circuit

Discussion in 'Homework Help' started by ChaosAD, Apr 26, 2004.

  1. ChaosAD

    ChaosAD Thread Starter New Member

    Apr 26, 2004

    I'm a relative newcomer to electronics, I understand you can use a NAND gate inplace of other gates, so you end up with a smaller circuit...how would I go about making a Full Adder circuit using only NAND gates? Any help much appreciated.
  2. haditya

    haditya Senior Member

    Jan 19, 2004
    State College, PA
    one can sure minimize IC count by using NAND/NOR (also known as universal building blocks). The Full Adder can be built by using only NAND gates by constructing an EX-OR gate using NAND gates and the other remaining (AND and OR) gates are similarly replaced by their NAND equivalents.

    hope this helps
  3. Drags

    Drags New Member

    Apr 28, 2004

    I have a question regarding a full adder/substractor. I'm studying for an exam and at the moment I am at the serial and paralel adder. My notes say that we can fasten the serial adder by using the NAND-WIRED-AND wiring (and sth. else, i think it is OR-AND or sth.). Could anybody explain what this could be.

    The picture which is attached looks like this: It has a line on NAND elements, and all the outputs are wired in one point (But it is not a short circuit - that I know). How can this work.?

    Thank you, Drags
  4. electro eto

    electro eto New Member

    Oct 5, 2006
    yea i'm a new comer and i joined related to the fuller adder post. and using the way u explained it i got it out. thanx.
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