IC 555 Astable Timer
Online calculator assists in determining the time-out value (delay) of the IC 555 timer
This online calculator assists in determining the time-out value (delay) of the IC 555 timer in an astable mode circuit, based on the given resistance and capacitance values. It enables you to calculate the precise timing parameters for your circuit configuration.
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- T1 = 0.7(R1+R2)*C
- T2 = 0.7*R1*C
- T = 0.7(R1+R2)*C
- F = 1.45 / ((R1+2R2)*C)
- D =0.1-((0.1*R2) / (R1+(2R2)));
where,
- T1 = High Period,
- T2 = Low Period,
- T = Total Period,
- F = Frequency,
- D = Duty,