Question: SR flip-flop to JK flip flop
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Step 1: General model to convert flip-flop.

Step 2: Present state next state table of J-K f/f with excitation table of S-R f/f.

Qn Jn Kn Qn + 1 Sn Rn
0 0 0 0 0 x
0 0 1 0 0 x
0 1 0 1 1 0
0 1 1 1 1 0
1 0 1 0 0 1
1 1 1 0 0 1
1 1 0 1 x 0
1 0 0 1 x 0

Step 3: simplifying logic expressions for Sn and Rn.

$\therefore S_n = J_n Q_n$

$\therefore R_n = K_n Q_n$

Step 4: Circuit diagram.

renu • 16 views