how to design 3 input xor/xnor gate?

[W_Heisenberg]

Hi,

anyone knows the trick to design transistor circuit for xor and xnor gate?

say 3 input xor, 4 input xor?

 

[andre_luis]

Differently from AND or OR logic with which only 1 input determine the output value, XOR logic depends on all inputs to determine output.
Hence it is a little hard to define a simplest way without nesting 2-XOR gates to another.

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[BradtheRad]

I guess another term for this is a gate that detects when there is not a unanimous vote? (A unanimous vote being either all 1's or all 0's.)

This webpage has a collection of logic gates assembled from discrete devices, including a couple of XOR gates.

https://www.4qdtec.com/dlc.html

 

[andre_luis]

Take a look on this interesting link which give 2 approach to design a multi-input XOR gate:

https://mindhunter74.wordpress.com/2011/04/25/xor-the-interesting-gate/#more-673

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[W_Heisenberg]

Take a look on this interesting link which give 2 approach to design a multi-input XOR gate:

https://mindhunter74.wordpress.com/2011/04/25/xor-the-interesting-gate/#more-673

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thanks for the help