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Latching address data with D flipflops

Discussion in 'Electronic Design' started by Bruce Varley, Sep 12, 2007.

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  1. Bruce Varley

    Bruce Varley Guest

    Hi, The usual arrangement for latching high order address bits with
    microcontrollers is to use a latch, like an HC373. Is there any specific
    reason why D flipflops, clocked from the trailing edge of the address strobe
    signal, wouldn't do the job? TIA
     
  2. With D flipflops clocked at the trailing edge, you have the valid
    address on the bus only at the end of the address strobe, whereas with
    the latch you have it from the beginning. That can be important for some
    cases.

    Vladimir Vassilevsky
    DSP and Mixed Signal Design Consultant
    http://www.abvolt.com
     
  3. Bob

    Bob Guest

    Just off the top of my head, aren't '373s D-type latches?

    Bob
     
  4. John Fields

    John Fields Guest

     
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