counter and shift registers

Discussion in 'Homework Help' started by vead, Jun 27, 2014.

  1. vead

    Thread Starter Active Member

    Nov 24, 2011
    621
    8
    i have read text book and I want to confirm my doubt



    shift register

    look the serial in serial out shift register using Jk flip flop


    http://www.allaboutcircuits.com/vol_4/chpt_12/2.html

    output of one filp flop is input for another flip flop

    Type JK FFs cascaded Q to J, Q' to K with clocks


    up counter


    look at counter with jk flip flop


    output of each flip flop is connected to the clock of next flip flop

    http://www.allaboutcircuits.com/vol_4/chpt_11/2.html

    output of each flip flop is connected to the clock of next flip flop



    when we design circuit using flip flop
    If output of one filp flop is input for another flip flop then it can be shift register


    if output of each flip flop is connected to the clock of next flip flop


    is it correct difference ?




     
  2. tshuck

    Well-Known Member

    Oct 18, 2012
    3,531
    675
    This is only true for ripple counters, which, in most cases, are considered poor design.

    To be a shift register, it must be connected in such a way as to perform a shift operation.
     
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