Conversion of SR FlipFlop into D FlipFlop (original) (raw)

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

Last Updated : 4 Mar, 2025

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.

sr-to-d

Excitation Table

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

K-map

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