not 1개

xor 4개

그외 2개


[링크 : http://www.instructables.com/id/Logic-Gates-with-NPN-transistors/]

[링크 : http://hyperphysics.phy-astr.gsu.edu/hbase/Electronic/trangate.html#c2]

[링크 : http://www.electronics-tutorials.ws/logic/logic_4.html]

Posted by 구차니

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