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Exclusive nor gate logic

by fcbarcelona
Tags: exclusive, gate, logic
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fcbarcelona
#1
Apr4-13, 02:10 AM
P: 2
hi,,
i m a bit confused in XNOR gate logic for MORE THAN 2 INPUTS..
is this logic correct "even function of 0's"..
need help in this regard,thanks in advance..
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johnbbahm
#2
Apr4-13, 08:02 AM
P: 141
I had never seen one, but found this.
http://answers.yahoo.com/question/in...4234255AA9fbB2
mfb
#3
Apr4-13, 08:21 AM
Mentor
P: 11,617
I don't think they found the right answer there.

The generalization of an XOR gate is the Parity - it is 1 if there is an odd number of "1" inputs.
XNOR is an inversed XOR - it is 1 if there is an even number of "1" inputs.

It can be written as NOT(A XOR B XOR C XOR D) - and as interesting feature, the order of operations (and inputs) does not matter.

fcbarcelona
#4
Apr4-13, 10:19 AM
P: 2
Exclusive nor gate logic

so it is even function of 1's... ??


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