Technical
Core ArchitectureAVR
Data Bus Width32 b
Frequency20 MHz
InterfaceEthernet, I2C, SPI, UART, USART, USB
Max Frequency66 MHz
Max Operating Temperature85 °C
Max Supply Voltage3.6 V
Memory Size7 kB
Memory TypeFLASH, OTP
Min Operating Temperature-40 °C
Min Supply Voltage1.65 V
Number of I/Os20
Number of Programmable I/O69
Number of Timers/Counters10
Operating Supply Voltage3.3 V
Oscillator TypeInternal
PeripheralsBrown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
RAM Size64 kB
Watchdog TimerYes