Are these two circuits equivalent?

Discussion in 'Homework Help' started by rickyjoepr, Dec 2, 2015.

  1. rickyjoepr

    Thread Starter New Member

    Oct 5, 2015
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  2. ScottWang

    Moderator

    Aug 23, 2012
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    Please compress the file to 800x600 or 1024x768 and attach the file to the forum to avoid the picture loss the connection next times, this times I did it for you, thanks.

    And when you take the picture you should from the top view is better.
     
  3. JoeJester

    AAC Fanatic!

    Apr 26, 2005
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    I'd add that take the picture in B&W, or mono, on some phones.
     
    ScottWang likes this.
  4. WBahn

    Moderator

    Mar 31, 2012
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    The signal nomenclature doesn't make any sense in the right hand picture. What is signal AB?

    It looks like you are using two 1-to-2 decoders with enables (at least that's what the s0 line looks like), but then what is the s1 marking for?

    You can make the topology on the right work, but you need to be more careful with the signal assignments.
     
  5. ScottWang

    Moderator

    Aug 23, 2012
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    Take the picture as old photo using the special effect from app of phone.
     
  6. RBR1317

    Active Member

    Nov 13, 2010
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    Should we be concerned that you have doubts about how AB has been implemented differently? Exactly how has AB been implemented differently? What about the presence of the switches S0 & S1 which seem to have no discernible purpose? Do you suspect that the 3→8 decoder will know that it is being driven by a less than pure 2→4 decoder, and the deceitful device will act appropriately? Are you asking for the secret to fool the 3→8 decoder into accepting a mongrel 2→4 decoder?
     
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