Technical
Core ArchitectureAVR
Data Bus Width8 b
Frequency20 MHz
HS Code8542.31.0015
InterfaceI2C, IrDA, SPI, UART, USART, USB
Max Frequency32 MHz
Max Operating Temperature85 °C
Max Supply Voltage3.6 V
Memory Size7 kB
Memory TypeFLASH, OTP
Min Operating Temperature-40 °C
Min Supply Voltage1.6 V
Number of ADC Channels8
Number of I2C Channels1
Number of I/Os22
Number of Programmable I/O53
Number of PWM Channels10
Number of SPI Channels3
Number of Timers/Counters3
Number of UART Channels2
Number of USB Channels1
Oscillator TypeExternal
PeripheralsBrown-out Detect/Reset, DMA, LCD, POR, PWM, WDT
RAM Size8 kB
Schedule B8542310000
Watchdog TimerYes