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Active - Low/High

  1. Oct 23, 2006 #1
    Hi,

    if i have an active low IC, a 0 is needed to enable the chip.

    lets say i have a 4 to 16 line demultiplexer... if the hex is 3, i will get an output of a 0 because A3A2A1A0 = 0011. now, the rest of the outputs will be "1". if I wanted to construct some more logic after that, a "1" is still considered a higih and a "0" is still considered a low right?
     
  2. jcsd
  3. Oct 23, 2006 #2

    berkeman

    User Avatar

    Staff: Mentor

    Yes. High is still high, and low is still low. It's the True and False aspect of the logic that changes for active low versus active high.
     
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