Can I use a JK Flip Flop as an SR Latch?

Discussion in 'General Electronics Chat' started by franklinmknight, Feb 16, 2010.

  1. franklinmknight

    Thread Starter New Member

    Jan 3, 2010
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    So I'm working on a keypad lock that a buddy of mine wanted me to do for him and I designed it so that I could use what materials I had laying around. Once I began working I noticed that I lacked a SR latch. However, I do have a JK flip flop. Would it be possible to substitute? The JK flip flop in question is the MC14027BCP. Thanks in advance.
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
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  3. MikeML

    AAC Fanatic!

    Oct 2, 2009
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    Sure, just ground J, K, and Clk, and the then use PRE and CLR as the Set and Reset, respectively.
     
  4. count_volta

    Active Member

    Feb 4, 2009
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    Keypad lock eh, neato. We had to design something of the sort for an exam along with 8 other problems in 1:15. :D Needless to say, almost nobody succeeded. If given enough time you can build anything, but 1:15 come on now.
     
  5. franklinmknight

    Thread Starter New Member

    Jan 3, 2010
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    Thanks. I must say this forum is incredibly helpful. Anyways, now that I know that it will work might I get one of you helpful lads to look over this schematic for me? I've yet to test it, so I might as well go ahead and post it so I know I won't be wasting my time. Mind you my schematic rendering skills are not the best. :)

    The transistor is just one I chose by the way. The program didn't have the ones I've got lying around.
     
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