ST STM32F051x4 STM32F051x6 STM32F051x8 Low- medium-density advanced ARM -based 32-bit MCU with 16 to 64 Kbytes Flash timers ADC DAC comm. interfaces handbook Datasheet STM32F051x4 STM32F051x6 STM32F051x8 are low-cost, low-power 32-bit ARM Cortex-M0 MCUs with integrated 16~64 KB Flash, multiple timers, ADC, DAC and communication interfaces.