Digital Logic Fundamentals Unit 3 – Exclusive-OR/NOR Gates
Exercise 2 – Dynamic Response of XOR/XNOR Gates
EXERCISE OBJECTIVE
When you have completed this exercise, you will be able to demonstrate the output response of
XOR and XNOR gates to a square wave input. You will verify your results by observing circuit
waveforms with an oscilloscope.
EXERCISE DISCUSSION
- A two-input XOR or XNOR gate cannot be disabled by one input pulled high or low.
- The level present at one input of a two-input XOR/XNOR gate controls the input/output
phase relationship of the gate. - A two-input XOR gate generates a complement if one of its inputs is is pulled high.
- A two-input XNOR gate generates a complement if one of its inputs is pulled low.