A MOD-16 ripple counter using J-K flip-flop has a current state 1001. How many…
2025
A MOD-16 ripple counter using J-K flip-flop has a current state 1001. How many clock pulses are required to get the state 0000?
- A.
8
- B.
7
- C.
6
- D.
5
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Correct answer: B
A MOD-16 counter counts from 0 to 15. The current state is 1001 (binary) which equals 9 in decimal.
To reach the maximum count (15) from 9, it takes 6 clock pulses (15 - 9 = 6). The next pulse causes an overflow, resetting the counter to 0000.
Total pulses required = 6 + 1 = 7.