Difficulty: Easy
Correct Answer: Correct
Explanation:
Introduction / Context:
Raw counter outputs are often in binary or Gray form and may not directly drive displays or control lines. Decoding maps counter states to meaningful outputs, such as segment drives for digits or enable lines for time-division multiplexing. This question asks whether decoding is a general step in using counters.
Given Data / Assumptions:
Concept / Approach:
Decoding means transforming the counter’s encoded state into a set of control or display signals. For example, a 4-bit binary count can be decoded to 10 active-low lines to drive digits 0–9, or to seven-segment patterns using a BCD-to-7-segment decoder. Decoding is not mandatory in every application but is common practice for interpreting the count state.
Step-by-Step Solution:
Verification / Alternative check:
Standard digital design texts show counters paired with decoders for timing sequences, scanning keyboards, or driving displays.
Why Other Options Are Wrong:
Limiting the statement to synchronous or ripple counters is unnecessary; both commonly use decoding. “Incorrect” ignores widespread usage patterns.
Common Pitfalls:
Overlooking hazards when decoding ripple-counter outputs (glitches) and forgetting to register decoded signals in high-speed contexts.
Final Answer:
Correct
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