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Latch Circiut

Discussion in 'Electronic Design' started by Paul Taylor, May 3, 2005.

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  1. Paul Taylor

    Paul Taylor Guest

    Hi all I need a latch circuit that will start up in 0 on its o/p I have tried the basic nor and nand types these all give me a 1 on start, has any one got a good circuits.

    Thanks
     
  2. Dave

    Dave Guest

    I suggest using a R/C circuit to reset the latch until start up power
    is stable.
    Dave
    have tried the basic nor and nand types these all give me a 1 on start,
    has any one got a good circuits.
     
  3. You need to add a reset circuit to whatever kind of latch you want to
    make.



    Best regards,
    Spehro Pefhany
     
  4. John Fields

    John Fields Guest


    ___
    SET>-------A
    Y-----+------------>OUT
    +--B | Vcc
    | NAND | |
    | | [R]
    | A---+ |
    +----Y B-----------+
    C---+ |
    _____ NAND | [C]
    RESET>---------------+ |
    GND
     
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