Technical
Core ArchitectureARM
Data Bus Width32 b
Frequency64 MHz
Interface2-Wire, I2C, I2S, MMC, SPI, UART, USART, USB
Max Frequency64 MHz
Max Operating Temperature85 °C
Max Supply Voltage3.6 V
Memory Size64 kB
Memory TypeFLASH
Min Operating Temperature-40 °C
Min Supply Voltage1.62 V
Number of I/Os34
Number of Programmable I/O34
Number of Timers/Counters3
Operating Supply Voltage3.3 V
Oscillator TypeInternal
PeripheralsBrown-out Detect/Reset, DMA, POR, PWM, WDT
RAM Size16 kB
Watchdog TimerYes