Question about arduino and supply current

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hi guys, I just bought a ucam ttl jpeg camera for my arduino and have some very basic questions.

Reading the dataset it says that to power the camera it require 3.0V to 3.6V DC range nominal 3.3V. So I plug it into the 3.3V pin from my arduino mega, setted it up and it worked.

However, im a little confused about the specifications from the datasheet.Namely it says that

Supply Current (ICC) VCC =   3.3V    58(min) 62(typical) 76(max)   mA

But the current draw from the 3.3v pin, according to the website is only 50mA.

So, can someone explain to me why it worked, or am i not understanding things correctly.

 

thanks!