Core processor: AVR

Core size: 8-bit

Speed: 16MHz

Connectivity: I2C, SPI, UART/USART

Peripherals: under-voltage detection/reset, POR, PWM, WDT

Number of I/O: 23

Program storage capacity: 8KB (4K x 16)

Program memory type: Flash

EEPROM capacity: 512 x 8

RAM capacity: 1K x 8

Voltage-power supply (Vcc/Vdd): 2.7 V ~ 5.5 V

Data converter: A/D 8x10b

Oscillator type: internal

Working temperature: -40°C ~ 85°C (TA)

Package/Shell: 32-TQFP

Supplier device package: 32-TQFP (7x7)