Technical
Core ArchitectureARM
Data Bus Width32 b
Frequency50 MHz
InterfaceI2C, IrDA, SPI, UART, USART
Max Frequency50 MHz
Max Operating Temperature85 °C
Max Supply Voltage3.6 V
Memory Size256 kB
Memory TypeFLASH
Min Operating Temperature-40 °C
Min Supply Voltage3 V
Number of ADC Channels0
Number of Bits0
Number of I/Os56
Number of Programmable I/O56
Number of Timers/Counters5
Number of UART Channels2
Operating Supply Voltage3.3 V
Oscillator TypeInternal
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
RAM Size32 kB
Watchdog TimerYes