STM32G070CBx Microcontrollers STMicroelectronics STM32G070CBx Microcontrollers are based on high-performance Arm® Cortex®-M0+ 32-bit RISC core operating at 64MHz frequency. These MCUs incorporate a Memory Protection Unit (MPU), high-speed embedded memories, Direct Memory Access (DMA), an extensive range of system functions, enhanced I/Os, and peripherals. The STM32G070CBx devices operate at -40°C to 85°C temperature range and 2V to 3.6V supply voltage range. These microcontrollers feature CRC calculation units, communication interfaces, and calendar RTC with alarm and periodic wakeup from Stop/Standby.