JK Latches

Discussion in 'Homework Help' started by Volt, May 5, 2009.

  1. Volt

    Thread Starter Member

    Nov 28, 2008
    24
    0
    Hello,

    On a JK flip flop the output Q is high (1) when J = 1 and K = 0

    When J = 1 and K= 0 the output toggles...

    Does this mean when the toggle occurs does this then mean that Q is high when J = 1 and K= 0?

    ...or does it just toggle until the next pulse from the clock is reached and then it returns back to it's standard function?

    Sorry if that doesn't make sense but my problem is pretty hard to write using words!

    Any help would be appreciated!

    Thanks
     
  2. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    Take a look here in the AAC ebook section on JK Flip/Flops.

    hgmjr
     
  3. mik3

    Senior Member

    Feb 4, 2008
    4,846
    63
    The outputs of a JK FF toggle when a clock pulse arrives and if both J and K are high (1).
     
  4. Volt

    Thread Starter Member

    Nov 28, 2008
    24
    0
    Thanks for your help but I am still a little unclear, when the output does toggle (when J and K are both 1) does that mean that the output Q will only be high when k =1 and j=0 until the next toggle? or until the next clock pulse?
     
  5. vvkannan

    Active Member

    Aug 9, 2008
    138
    11
    Toggle means the switching of the ouput Q from high to low or low to high.
    If Q is 0 and now you give a clock pulse with j and k being 1 it goes to high or Q goes to 0 if it was 1 before the clock pulse was applied.

    I am not clear about your question.could you try framing it better?

    This might help you

    http://hyperphysics.phy-astr.gsu.edu/Hbase/Electronic/jkflipflop.html
     
  6. Volt

    Thread Starter Member

    Nov 28, 2008
    24
    0
    Hello, I understand now, I built the circuit on a simulation program and studied the outputs, Thanks for all your help
     
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