3 Input Majority Logic Circuit

  • #1
I want to implement a three input majority logic (when at least two of its inputs are 1, the output will be logic 1) by using only 2-input NAND gates. It is required to find the most simple one, with the lowest number of NAND gates, I could construct one with 6 NAND gates, but does anybody know a much simpler way for this? Or six gates is the simplest one? Any help is appreciated...
 

Answers and Replies

  • #2
1,762
59
Is this homework?
 
  • #3
Actually, it is like a homework; it is a part of pre-laboratory which should be designed before coming to lab.. And it will be implemented on lab.
 
  • #4
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Using only 2 input nand gates I can't find a solution with less than 6 either.
 
  • #5
4,662
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Can you use 2-input open collector NAND gates (SN7401's) and resistor OR-ing?
 

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