Computer Science · Digital Electronics
In a 4-bit asynchronous binary ripple counter, each D flip-flop is negative edge-triggered and exhibits a propagation delay of 10 nanoseconds. What is the maximum allowable frequency for the input clock to ensure reliable counter operation without timing failures due to cumulative propagation delay?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 150 MHz
- 225 MHz✓
- 380 MHz
- 440 MHz
Correct answer
25 MHz
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