The ATMEGA3209-MFR is an AVR microcontroller manufactured by Microchip. It is housed in a quad flat no-lead package (QFN48) and features a 32kbyte Flash memory, 4kbyte SRAM and 256byte EEPROM memory. The microcontroller is optimized for low-power applications, with several power distribution options. In addition, the ATMEGA3209-MFR has a wide range of peripheral features including three serial communication modules, one 2-wire serial interface, 16-bit timer/counter, 32-bit timer counter, an 8-bit analog-to-digital converter, two USARTs, an I2C/SPI peripheral, and four byte-wide ports. It is highly versatile and suited for many embedded applications.