# 555 timer

You can use the 555 timer part as a one-shot timer (monostable) or as an oscillator (astable):

- In a one-shot timer, a trigger pulse causes the output to change state for a set time before returning back to its original state.
- An oscillator produces a continuous stream of pulses.

Part parameters:

- Supply voltage: 4.5 V to 16 V
- Maximum output low voltage: 2.5 V (Conditions: Supply voltage=15 V, Output low current=200 mA)
- Minimum output high voltage: 12.5 V (Conditions: Supply voltage=15 V, Output high current=200 mA)
- Power supply current: 10 mA (Condition: Supply voltage=15 V)
- Maximum power dissipation: 600 mW

## See also:

- 555 timer - pin functions
- Using electronics parts