Counters

Q1: A 5-bit asynchronous binary counter is made up of five flip-flops, each with a 12 ns propagation delay. The total propagation delay (tp(tot)) is ________.

A 12 ms

B 24 ns

C 48 ns

D 60 ns

ANS:D - 60 ns

No of ff(n)=5 and each propagation delay(t) = 12.

So, T(pd) = n * tt = 5 * 12 = 60ns.



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