Let k = 2ⁿ. A circuit is built by giving the output of an n-bit binary counter…
2025
Let k = 2ⁿ. A circuit is built by giving the output of an n-bit binary counter as input to an n-to-2ⁿ bit decoder. This circuit is equivalent to a
- A.
K-bit binary up counter
- B.
K-bit binary down counter
- C.
K-bit Ring counter
- D.
K-bit Johnson counter
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Correct answer: C
An n-bit binary counter cycles through 2^n distinct states sequentially. When connected to an n-to-2^n decoder, each counter state activates exactly one of the K=2^n outputs in sequence. This produces a rotating one-hot pattern across K output lines, which is the defining behavior of a K-bit ring counter.