Excitation Table and Characteristic Equation
The excitation table and state diagram for the SR master-slave flip-flop are presented in Figs. 6.22a and b.
Note that the columns S, R, and Q denote the conditions on the flip-flop signals before the clock pulse is applied.
The Q* column denotes the flip-flop output after the clock pulse has been applied.
The state diagrams of the simple SR latch and the master-slave SR latch are identical. The difference between them is that the latch changes states immediately when S or R changes, whereas all flip-flop state changes are triggered by clock pulses.