The 32-bit Microchip AVR® UC3 microcontrollers are the most efficient Microchip microcontrollers. They offer low power consumption and very fast communication and CPU. They contain the best Microchip technology and innovations, including a hardware Microchip QTouch® and QMatrix® capacitive button interface. And to top it off, Microchip gives away one of the development environments, completely free of charge.