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Counters - Technical MCQs

Q1:

Which of the following groups of logic devices would be the minimum required for a MOD-64 synchronous counter?

A Five flip-flops, three AND gates

B Seven flip-flops, five AND gates

C Four flip-flops, ten AND gates

D Six flip-flops, four AND gates

ANS:D - Six flip-flops, four AND gates

With N FLIPFLOP maximum states possible in counter is 2^n states no of states is called modulus count =2^6 so 6ffs.