555 Timer Calculator.

555 Timer Astable Mode:

An astable 555 timer circuit, also known as a free-running multivibrator or oscillator, continuously switches between two states, generating a square wave output, between low (0V) and high (+Vs), without requiring an external trigger.

A great description of the 555 Timer is here...

Please Input the component values for the two Resistors and the Capacitor.

R1 (Ω): R2 (Ω): C (µF): Calculate

555 Timer Monostable Mode:

A monostable (one-shot) mode configuration, the 555 timer IC generates a single, predetermined-duration pulse upon receiving a trigger signal, then returns to its stable state, making it useful for applications like timers and pulse generation


Please input the component values for the two Resistors and the Capacitor.