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The tool is NE555 frequency online calculator, 555 integrated circuit parameter application calculation.
NE555 frequency online calculator 555 integrated circuit parameter application calculation
Find the output value based on the metacondition
Calculation formula：
T2 (off-time) = 0.693 * R2 * C1 T = 0.693*( (R1 + 2R2) * C1) F = 1/ T = 1.44 / ( (R1 + 2R2) * C1) D = (T1 /(T1+T2))*100
R1: R K M R2: R K M C: uF nF pF
T1 Rising edge = second T2 Falling edge = S T Total week = S Frequency = Hz Duty cycle = % Duty cycle≥50%
Find the resistance value according to the output conditions Duty cycle ≤50%
Evaluated according to output conditions or components Duty cycle ≥50%
