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electronics and communication engineering digital electronics
1. A 4 bit synchronous counter has flip flops having propagation delay of 50 ns each and AND gates having propagation delay of 20 ns each. The maximum frequency of clock pulses can be
(A): 14.3 MHz
(B): 20 MHz
(C): 5 MHz
(D): 50 MHz
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By: guest on 01 Jun 2017 11.53 pm
Maximum delay = 50 + 20 = 70 x 10-9 s. Hence .
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