Excitation table For RS Flip-flop
Excitation Table basically tells about the excitation which is required by flip flop to go from current state to next state.
Sl no. |
Qn |
Qn+1 |
S |
R |
---|---|---|---|---|
1 |
0 |
0 |
0 |
X |
2 |
0 |
1 |
1 |
0 |
3 |
1 |
0 |
0 |
1 |
4 |
1 |
1 |
X |
0 |
Here, Qn is the current state, Qn+1 is the next state outputs and S, R are the set and reset inputs respectively.
RS Flip Flop
The RS flip-flop is used to store binary information (i.e. 0 or 1). It consists of two inputs, SET and RESET. In RS flip-flop ‘R’ Stands for RESET and ‘S’ stands for SET. The flip-flop keeps its present state even when one or both inputs are deactivated. The flip-flop enters the ‘0’ state when the RESET input is activated, and the ‘1’ state when the SET input is activated.