Transistor logic gates, 74 Series, A HC T, gate logic, xor gate - tatanh1983/conchodom GitHub Wiki

A logic gate implements a Boolean function and thus performs a logical operation on one or several logic inputs in order to produce a single logic output. A logic gate often uses diodes or transistors that act like electronic switches

https://www.futureelectronics.com/c/semiconductors/logic--74-series--a-hc-t/products