The Microchip ATMXT1664T2-C2U056 is a high performance, 32-bit AVR microcontroller that combines 8-bit enhanced AVR CPU with rich analog peripherals, digital signal processing (DSP) capabilities, and advanced low-power technologies. This microcontroller is built around an 8-bit AVR CPU core, which is specifically designed for low-power applications. It features a rich set of features and peripherals, including an on-chip oscillator, a set of configurable I/O ports, an A/D and D/A convertor, an LCD controller, a system timer, UART, SPI and TWI communication interfaces, and an extensive set of up to 64 KB of Flash program memory and up to 1 KB of Data Memory (RAM). With an extensive set of available peripherals and feature enhancements, this microcontroller can meet the most demanding low-power, low-cost application requirements.