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555 timer calculator
Calculate the frequency, period, and duty cycle for a 555 timer circuit in Astable or Monostable mode.
Mode:
Astable
Monostable
R1 (kΩ):
R2 (kΩ):
C1 (µF):
Vcc
GND
555
8
4
1
5
7
6
2
3
C2
RL
R1 (1k)
R2 (330k)
C1 (2.2µF)