Question

Internal propagation delay of asynchronous counter is removed by ____________

(a) Ripple counter

(b) Ring counter

(c) Modulus counter

(d) Synchronous counter

The question was asked by my college director while I was bunking the class.

I'd like to ask this question from Asynchronous Counter topic in portion Counters of Digital Circuits

Answer 1

Correct answer is (d) Synchronous counter

The explanation is: Propagation delay refers to the amount of time taken in producing an output when the input is altered. Internal propagation delay of asynchronous counter is removed by synchronous counter because clock input is given to each flip-flop individually in synchronous counter.