STM32F030x4 Value-line ARM-based 32-bit MCU with 16 to 64-KB Flash, timers, ADC, communication interfaces, 2.4-3.6 V operation
nrf51822pdf AlowpowerARMCortex-M032bitCPUisembeddedinallnRF51seriesdevices.TheARMCortex-M0hasa16bitinstructionsetwith32bitextensions(Thumb-2technology)thatdeliver
STM32F031xx.pdf Value-line ARM-based 32-bit MCU with 16 to 64-KB Flash, timers, ADC, communication interfaces, 2.4-3.6 V operation