6.4.3. CMOS XNOR Gate

Try these first

1. 1.

   What output does a XNOR gate provide when both inputs are 0?

   Hint

   Think about what happens when two inputs match.

2. 2.

   When do XNOR gates output 0?

   Hint

   Consider the case of one input being 0 and the other being 1.

3. 3.

   What is the output of an XNOR gate when both inputs are 1?

   • 0
   • 1
   • Undefined

   Hint

   Recall the basic property of the XNOR gate.

4. 4.

   True or False: An XNOR gate can help in error detection.

   • True
   • False

   Hint

   Think about how XNOR can check if two bits are equal.

5. 5.

   Design a digital logic circuit using at least three XNOR gates to compare four binary inputs A, B, C, and D and produce an output showing if all inputs are equal.

   Hint

   Think about how to group pairs of inputs together before final comparison.

6. 6.

   Explain how the XNOR gate could be incorporated into an 8-bit parity generator, detailing the necessary connections.

   Hint

   Consider how error-checking is achieved in each byte transmission.