STM32F030F4P6 TSSOP-20 ARM Microcontroller-MCU

CRC calculation unit
4 to the 32MHz Crystal oscillator
32kHz Oscillator for RTC with calibration
Internal 8MHz RC with x6 PLL option
Internal 40kHz RC oscillator
0 to 3.6V Conversion range
2.4 to 3.6V Separate analogue supply
Independent and system watchdog timers
SysTick timer