Digital Electronics

Q1: As the number of flip flops are increased, the total propagation delay of

A ripple counter increases but that of synchronous counter remains the same

B both ripple and synchronous counters increase

C both ripple and synchronous counters remain the same

D ripple counter remains the same but that of synchronous counter increases

ANS:A - ripple counter increases but that of synchronous counter remains the same

In ripple counter the clock pulses are applied to one flip- flop only. Hence as the number of flip-flops increases the delay increases. In synchronous counter clock pulses to all flip-flops are applied simultaneously.



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