What is the voltage and current requirement for an Arduino Uno?

[amaresh92]

greetings,

i have an arduino usb 328 and i want to know the supply voltage and current requirement of it.
thanks

 

[MATLABdude]

This one, which, as per the page, takes 5V from either USB or external adapter?
http://www.arduino.cc/en/Main/ArduinoBoardDuemilanove

The micro only draws a few uA of current (unless you're driving current using the microcontroller). The board probably consumes a few mA of current--the vast majority lighting up the power LED.