

MCQOPTIONS
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1. |
A 4 bit modulo-16 ripple counter uses JK flip-flops. If the propagation delay of each flip-flop is 50 nsec, the maximum clock frequency that can be used is equal to __________ |
A. | 20 MHz |
B. | 10 MHz |
C. | 5 MHz |
D. | 4 MHz |
Answer» D. 4 MHz | |