Monostable Multivibrator Calculator
Calculate pulse width for monostable (one-shot) timer circuits.
Circuit Parameters
555: R should be 1k to 10M Ohms
Pulse Output
110.00 ms
Pulse Width
3.50 V
Output High
9.09 Hz
Max Trigger Rate
Timing Details
Trigger Threshold1.67 V
Recovery Time (approx)11.000 ms
Timing Accuracy+/-1%
Formula
T = 1.1 * R * C
The 555 timer triggers on negative edge (falling below 1/3 Vcc). Output stays high for time T regardless of trigger duration.
Applications
- - Pulse stretching / missing pulse detection
- - Switch debouncing
- - Time delays and timeouts
- - Touch-activated switches
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.