Conversion of S-R Flip-Flop into D Flip-Flop

Prerequisite -

1. S-R Flip-Flop :

S-R flip-flop is similar to S-R latch expect clock signal and two AND gates. The circuit responds to the positive edge of clock pulse to the inputs S and R.

2. D Flip-Flop :

D Flip-Flop is a modified SR flip-flop which has an additional inverter. It prevents the inputs from becoming the same value.

Conversion of S-R Flip-Flop into D Flip-Flop :

• Step-1: We construct the characteristic table of D flip-flop and excitation table of S-R flip-flop.

• Step-2: Using the K-map we find the Boolean expression of S and R in terms of D.
  

  S = D
  R = D' 

• Step-3: We construct the circuit diagram of the conversion of S-R flip-flop into D flip-flop. 👁 Image