Page 27 - CITS - Electronic Mechanic - TT - 2024
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ELECTRONICS MECHANIC - CITS
Exclusive OR Gate (EX-OR)
It also means In equality detector because it gives output high when both inputs are different.
Exclusive OR gate give output equal to1when the two inputs are exclusively different. This is there as on why it
is also known as in equality gate.
The schematic symbol and truth table of the gate is shown below :
Equal to AX OR B.”The logic expression this gate in terms of AND, OR and NOT operation is
X= Ax or B=A’B+AB’.
Exclusive NOR Gate (EX-NOR)
It also means equality detector because it gives output high when both inputs are same.
Exclusive NOR gate is XOR gate followed by inverter. Thus it is complement of XOR gate. This is there as on
why it is also known as equality gate.
The logic symbol, logic expression, schematic symbol, truth table of the gate is shown below :
X=AB+A’B’
Illustration of EX-NOR gate
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CITS : E & H - Electronics Mechanic - Lesson 5 - 8
