The number of flip-flops required to design a modulo -272 counter is
2015
The number of flip-flops required to design a modulo -272 counter is
- A.
8
- B.
9
- C.
27
- D.
11
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Correct answer: B
Answer: 9 flip-flops.
Reasoning:
To implement a modulo-N counter you need the smallest integer n such that 2^n ≥ N.
Compute powers of two around 272: 2^8 = 256 which is less than 272, and 2^9 = 512 which is greater than or equal to 272.
Therefore the minimum n that satisfies 2^n ≥ 272 is n = 9, so 9 flip-flops are required.