Question: In the following circuit, the XOR gate has a delay in the range of 2 to 16 ns. The D flip-flop has a propagation delay

In the following circuit, the XOR gate has a delay in the range of 2 to 16 ns. The D flip-flop has a propagation delay from clock to Q in the range 12 to 24 ns. The setup time is 8 ns, and the hold time is 4 ns.

X - CLK -

(a) What is the minimum clock period for proper operation of the circuit?
(b) What are the earliest and latest times after the rising clock edge at which X is allowed to change and still have proper synchronous operation? (Assume minimum clock period from (a).)

X - CLK -

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