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How to make a flip flop using 555 ic ?

Discussion in 'Homework Help' started by sajo.joseph.3333, Jan 23, 2016.

  1. sajo.joseph.3333

    sajo.joseph.3333 New Member

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    Hi,
    Somebody please help me with my home work. I need to design a flip flop using 555 ic.
     
  2. lijoppans

    lijoppans New Member

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    Hi,
    That is just a tricky question to confuse you. A flip flop is same as a bistable multivibrator. Usually a bistable multivibrator is called as flip flop when it is used in digital circuits.
    You can easily design a bistable multivibrator using 555 by make use of its RESET pin. Just connect 2 button switches to TRIGGER and RESET pins along with pull up resistors. When you make the trigger pin LOW, the output of 555 becomes HIGH and when you make the reset pin LOW, the output becomes LOW.
    You may refer these links for more information :
    Bistable Multivibrator
    Bistable Multivibrator using 555 Timer
     
  3. alec_t

    alec_t Well-Known Member Most Helpful Member

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    The question is even trickier because the term 'flip-flop' is used loosely and there are monostable, bistable, and astable forms. Check out Wikipedia.
    Since this is 'Homework help' and not 'Homework done for you', what are your best efforts so far with this problem?
     
  4. dave

    Dave New Member

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  5. Les Jones

    Les Jones Well-Known Member

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    You need to ask for a better definition of the question. I think you could make a set / reset flipflop but not s D type flipflop. As alec said we will only help you with the answer not give you the answer.

    Les.
     

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