NOR GATE FLIP-FLOP

Timing Diagram Exercise

There are many types of flip-flops. They can be made up from Nor or Nand gates. The truth table and connections are shown for the Nor gate flip flop.

R	S	Q	_ Q
0	0	memory	memory
1	0	0	1
0	1	1	0
1	1	0	0

 

 

 

 

 

        

 

Memory means that the flip flop remembers its output. When R and S are 0, Q can be 1 or 0 depending on its value before R and S became 0. A timing diagram demonstrates how this happens.

 

 

Determine the output for the following waveforms