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+4 votes

in Digital Logic by Boss (11.4k points)
edited by | 282 views
Is A.) the answer?
can you explain please?
Ok, I'll explain
thank you

2 Answers

+2 votes
Best answer

The gate implementation of JK Flip Flop is

And the Truth Tables obtained for JK Flip Flop is

From this we obtain Next State Q (t+1) = J Q' + k' Q

Now from the given Question, we see that the Input of both J & K = X hence substitute X in place of both J &  K and Q1 in place of Q.
You'll find your answer


by Active (1.5k points)
selected by
And one more thing! we have got nothing to do with the D f/f as output Q2 is going back to D flip flop only
+2 votes

it is basically T-flip-flop(j=k=T) so output will be 

                Q                                            T                                       Q(t+1)

0 0 0
0 1 1
1 0 1
1 1 0



by Active (2.8k points)
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