Help With my HW please...This involes 74190 and 74191 integrated counters

Discussion in 'Homework Help' started by rkobasketball, Mar 15, 2010.

  1. rkobasketball

    Thread Starter New Member

    Mar 13, 2010
    5
    0
    1. What is the difference between the 190 and 191?
    2. Which edge causes the count to advance?
    3. What level must be applied to the up-down pin to make it count up? Down?
    4. Is the load control synchronous?
    5. What are the P0 - P3 inputs used for?
    Thanks SOOOO MUCH
    :)
     
  2. LoganFife

    New Member

    Feb 7, 2010
    13
    0
    Last edited: Mar 15, 2010
  3. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
    loganfife is correct. This does appear to be a class assignment that is an exercise in interpreting a manufacturer's datasheet. As such you should be able to quickly find the answers to the questions you have been given by referring to the manufacturer's datasheet.

    hgmjr
     
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