Technical
Ambient Temperature Range High85 °C
Core ArchitectureARM
Data Bus Width32 b
Frequency55 MHz
HS Code8542.31.0025
InterfaceI2C, SPI, UART, USART, USB
Max Frequency55 MHz
Max Operating Temperature85 °C
Max Supply Voltage3.6 V
Memory Size512 kB
Memory TypeFLASH
Min Operating Temperature-40 °C
Min Supply Voltage1.65 V
Number of A/D Converters1
Number of ADC Channels8
Number of I2C Channels1
Number of I/Os32
Number of Programmable I/O32
Number of PWM Channels4
Number of SPI Channels1
Number of Timers/Counters3
Number of UART Channels1
Number of USB Channels1
Oscillator TypeInternal
PeripheralsBrown-out Detect/Reset, DMA, POR, PWM, WDT
RAM Size64 kB
Schedule B8542310000
Watchdog TimerYes