How to design a Flip Flop using 555 ?

Discussion in 'Homework Help' started by ligo.george, Jan 10, 2016.

  1. ligo.george

    Thread Starter New Member

    Feb 2, 2013
    19
    2
    Please help me to design a flip flop using 555 timer. It is college assignment.
     
  2. bertus

    Administrator

    Apr 5, 2008
    15,649
    2,348
    Hello,

    When you look at the functional diagram, what would the pins do?

    NE555_functional_diagram.png

    Bertus
     
  3. MrAl

    Well-Known Member

    Jun 17, 2014
    2,440
    492

    Hi there,

    The missing question here is: "What kind of flip flop" ?

    There are several types of flip flops, to name a few:
    RS type, D type, T type, JK type.

    The RS type for example would be simpler to do with a 555 while the T type (toggle flip flop) would be harder to implement. So it would be good if you can tell us or find out yourself if you dont know yet. If "any" type is acceptable then i would recommend doing the RS type, although the T type would be much more interesting and probably gain you some brownie points with the teacher :)
     
  4. MikeML

    AAC Fanatic!

    Oct 2, 2009
    5,450
    1,066
    Google "555 toggle"; it has been posted all over the web, even here at this forum, but Wendy called it a "bi-stable" instead of a toggle flip-flop
     
  5. WBahn

    Moderator

    Mar 31, 2012
    17,788
    4,808
    "Help" implies providing assistance to one that is making an effort to solve a problem. So let's see some of that effort so that we have something to assist with.
     
  6. Sajo Joseph

    New Member

    Nov 17, 2014
    6
    0
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