4 bit adder -> parrarel adder of 4 bit numbers

Discussion in 'Homework Help' started by snk0, May 21, 2014.

  1. snk0

    Thread Starter New Member

    May 21, 2014
    Hi, electronic circuits are more or less black magic to me. I somehow managed to do the previous tasks I had to do but unfortunately the one I have now is somewhat beyond me:(

    I have to create parrarel adder capable of adding two 4 bit numbers using 4 bit adder. The outcome should be read out from the registry in parrarel method (Im not sure if i translated this correctly)

    4 invert gates
    2 NAND (2 entrances)
    8 EX-OR (2 entrances)
    74164 x2
    74165 x 2
    7483 (one bit adder) x1
    74175 x1
    74198 x 1
    7475 x1
    7495 x1

    I will be insanely greatful for help
  2. absf

    Senior Member

    Dec 29, 2010
    What have you done so far?

    If you look at the datasheet of 7483, it is a 4-bit full adder by itself. ;)

  3. Austin Clark

    Active Member

    Dec 28, 2011
    I think he may be confusing parallel with serial. Based on how he described the output as being "read out".