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Arduino ATmega Absolute Maximum Ratings
0001 Jun 1
One minute read

Arduino ATmega Absolute Maximum Ratings

Voltage on any Pin except RESET with respect to Ground      -0.5V to VCC+0.5V
Voltage on RESET with respect to Ground                     -0.5V to +13.0V
Maximum Operating Voltage                                   6.0V
DC Current per I/O Pin                                      40.0 mA 
DC Current VCC and GND Pins                                 200.0 mA
  • the leakage current from a digital signal pin should be pretty low. like 0.001mA or something like that
  • max current is 500mA over USB. Arduino board draws (at most) 50mA. So that leaves ~450mA on the 5V pin for your project


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