Description: This is Atmel’s high performance, low power 8-bit AVR ATMega328 microcontroller in a pint-sized TQFP package. Yes, you really can solder that.
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What could one expect of this chip? it is the brain of a great many devices and project. if you need a microcontroller that is small, reliable and comes with a great deal of documentation and examples this is pretty much THE microcontroller most grab for.
I use this microcontroller the most for portable projects and clocks thanks to the great control it gives me through its timers and the ability to shut down unused parts to save on power.
There is a but however, tough as great as this chip is it is a bit of an old one. compared to the modern XMega it is just not as powerfull as it used to be.