A primary advantage of using J- K flip- flops in asynchronous counter circuits is their ability to:
A) toggle on the clock if the J- K inputs are held HIGH.
B) toggle on the clock if the PRESET and CLEAR inputs are held LOW.
C) toggle on the clock if the PRESET and CLEAR inputs are held HIGH.
D) toggle on the clock if the J- K inputs are held LOW.

Question

Quizplus · Accepted Answer

J-K flip-flops can toggle their state (switch from 0 to 1 or from 1 to 0) on each clock pulse when both the J and K inputs are held high. This feature is utilized in designing counters and other sequential logic circuits.

A Primary Advantage of Using J- K Flip- Flops in Asynchronous