(a) The MOD number of a counter is equal to the number of complete states that a
ID: 2315292 • Letter: #
Question
(a) The MOD number of a counter is equal to the number of complete states that a counter goes through before it recycles back to its starting state. To construct a ripple counter with a MOD number X, it requires a minimum number of N FFs such that 2N ? X. What is the maximum MOD # of a counter constructed with 6 flip-flops? (b) Counters with a MOD number larger than 16 can be created by cascading 4-bit binary counters. The MOD number is equal to the product of the individual MOD numbers. For example, a MOD 80 counter can be implemented as shown in the following figure (general block diagram, all of the wiring is not shown).
Explanation / Answer
a.Max mod=2^N=64 mod counter
b.for 16mod counter 4-flipflops is required for above 16mod we use cascade four bit flip-flops that gives the better result..,
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