AVR® microcontrollers are built using a modified Harvard Architecture. Learn how this structure works and what you need to know about registers, timers, power-saving strategies, and more.  These features will help you to get the best performance out of your device and examples are provided to assist you on your journey.  Our broad portfolio of uniquely configurable MCUs allows you to start designing quickly using our award-winning integrated development environments with production-ready code generation tools and best-in-class rapid prototyping hardware.