Technical
Core ArchitectureARM
Data Bus Width16 b
Frequency55 MHz
HS Code8542.31.0025
Interface2-Wire, I2C, I2S, IrDA, Parallel, SPI, UART, USART, USB
Max Frequency48 MHz
Max Operating Temperature85 °C
Max Supply Voltage1.95 V
Memory Size256 kB
Memory TypeFLASH
Min Operating Temperature-40 °C
Min Supply Voltage1.65 V
Number of I2C Channels1
Number of I/Os88
Number of Programmable I/O88
Number of PWM Channels4
Number of SPI Channels1
Number of Timers/Counters3
Number of UART Channels2
Operating Supply Voltage3.6 V
Oscillator TypeInternal
PeripheralsBrown-out Detect/Reset, POR, PWM, WDT
RAM Size32 kB
Schedule B8542310000
Watchdog TimerYes