Question

One of the major drawbacks to the use of asynchronous counters is that ____________

(a) Low-frequency applications are limited because of internal propagation delays

(b) High-frequency applications are limited because of internal propagation delays

(c) Asynchronous counters do not have major drawbacks and are suitable for use in high- and low-frequency counting applications

(d) Asynchronous counters do not have propagation delays, which limits their use in high-frequency applications

I got this question in examination.

This question is from Asynchronous Counter in division Counters of Digital Circuits

Answer 1

Right answer is (b) High-frequency applications are limited because of internal propagation delays

To elaborate: One of the major drawbacks to the use of asynchronous counters is that High-frequency applications are limited because of internal propagation delays. Propagation delay refers to the amount of time taken in producing an output when the input is altered.