Arduino Pins

Respected Brothers,

Can any one tell me please how much current an arduino mega 2560 provide,in mili amps or mirco amps. Because I am trying to implement LED dot matrix and I m just confused on current limitation .
That the current that arduino provide is sufficient to drive an led or not ?
regards,

800 milliamp between the mega and anything you have connected, if you supply 7.5V to the barrel jack connector.
If you have 9-12V, the regulator will overheat at a lower current.

Usman_Rashid:
Respected Brothers,

Can any one tell me please how much current an arduino mega 2560 provide,in mili amps or mirco amps. Because I am trying to implement LED dot matrix and I m just confused on current limitation .
That the current that arduino provide is sufficient to drive an led or not ?

On the I/O pins? On the regulated 5V connection? Where?