Atmel's ATMega328P 8-Bit Processor in 32 pin TQFP package. It's like the ATmega168-20AU, with double the flash space. 32K of program space. 25 I/O lines, 8 of which are channels for the 10-bit ADC. Runs up to 20MHz with external crystal. Package can be programmed in circuit. 1.8V to 5V operating voltage!
OBS: Denna är inte förprogrammerad med Arduino bootloader, utan är helt tom.