Talk:XOR gate

message: This page should show a transistor implementation of an xor gate. Fresheneesz 02:08, 19 October 2006 (UTC)
replies: text: Agreed.  Although whether TTL or CMOS would be better, I'm not sure.  I'd prefer CMOS because MOSFETs are easier to understand than bipolar transistors, but more people are familiar with bipolars... 87.75.164.162 21:09, 19 October 2006 (UTC)
thread_title:  Implementation 

message: That last edit was foolish.  Exclusive or is not universally defined to give parity.  Its definition is disputed. --ToobMug 16:38, 22 April 2007 (UTC)
thread_title:  Three inputs revisited

message: I agree with ypg1988: this article should explain the use of XOR in cyptography.
Also, in case anyone feels like making another one of those diagrams, here's another way to make XOR logic out of other types of gates:
>>====OR--------------\
...\\...................................---AND----->
....\\===AND----NOT---/
how does xor gate function with cmos?  —Preceding unsigned comment added by 41.204.170.69 (talk) 10:11, 16 October 2009 (UTC)
thread_title:  Cryptography 

message: Should we not mention the minimal three gate XOR gate?  The inputs may be connected to a pair of AND gates with one inverting input each, and the outputs of those combined via an OR gate.  The AND gate with an inverting input may not be a widely recognised gate but inverting an input in CMOS (and and most other logic families) is a simple re-wiring job, free in terms of components and area. Crispmuncher (talk) 21:57, 25 June 2010 (UTC)
replies: text: Your wish is my command ;) - by using a bit of boolean logic:   (A + B) \cdot ( \overline A + \overline B ) \equiv (A + B) \cdot   \overline {(A \cdot B)}  I have added a three standard gate solution using an AND, a NAND and a OR gate. I have also made a circuit diagram for it and added it to the article. --Crystallizedcarbon (talk) 22:09, 4 September 2014 (UTC)
thread_title:  Minimal implementation 

message: Is this really a practical solution to a real problem?  Oli Filth(talk|contribs) 19:22, 7 April 2013 (UTC)
replies: text: As this is unsourced (and my half-arsed web search didn't reveal anything), I've removed this for now.  Feel free to restore with a source.  Oli Filth(talk|contribs) 18:47, 19 May 2013 (UTC)
replies: text:  I've restored with a reference to the paper . Calcyman (talk) 12:21, 17 April 2019 (UTC)
replies: text: Hello  I have removed it as there is no indication that it is a practical application or that its use is extended. As far as I know, all modern circuits allow multiple metal layers so it seems that it could be more of an academic exercise than a real common application for XOR gates. --Crystallizedcarbon (talk) 18:45, 24 April 2019 (UTC)
thread_title:  Signal crossing 

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thread_title:  External links modified