- CPU type: 8-bit AVR
- Performance: 20 MIPS at 20 MHz
- Flash memory: 32 kB
- SRAM: 2kB
- EEPROM: 1 kB
- Pin count: 28
- Maximum operating frequency: 20 MHz
- Number of touch channels: 16
- Hardware QTouch Acquisition: No
- Maximum I/O pins: 23
- External interrupts: 2
ATMEL ATmega 328P IC
ATMEL ATmega 328P IC