In 2008, Microchip introduced its next generation AVR, the XMEGA. Based on all the benefits of the AVR microcontroller, the AVR XMEGA further improves all recognized features of AVR. Even on a highly integrated MCU like XMEGA, low leakage allows for 100 nA in sleep modes with full SRAM retention and wake-up interrupt from all I/O pins. This is 10-100 times lower than comparable MCUs. True 1.6V operation means that all functions including analog modules and memory programming works down to 1.6V and XMEGA can run directly from a 1.8V power supply with +/-10% variation. Other low power features include Watchdog timer and accurate brown-out detection that combined only uses 1µA. Performance enhancements in the XMEGA result in: the fast and efficient AVR CPU ensure that up to 32 MIPS is available for application processing, and the 4 channel DMA controllers allowing for up to 4x256 mbps data transfer to occur simultaneously. This offloads the CPU by reducing its need to handle data transfer, leaving the CPU free for more data processing, or to sleep and save power. The event system allows peripherals to work and communicate without involving the CPU or DMA. It reduces the need for interrupts and CPU intervention and enables 100% predictable and latency-free peripheral signaling. The peripherals added around the CPU, DMA and event system include: high speed and high resolution Analog to Digital and Digital converters, with flexible configuration options, hardware crypto engine for easy implementation of fast and secure communication and bootloaders. A reach feature set include multiple 16-bit Timer/Counter, USART, SPI, I²C compatible TWI modules, Analog Comparator and more.