STM32C0x Arm®Cortex®-M0+ 32-bit MCUs STMicroelectronics STM32C0x Arm® Cortex®-M0+ 32-bit MCUs implement a high-performance Arm Cortex-M0+ 32-bit RISC core, which operates at up to 48MHz frequency. The devices provide a high level of integration, ideal for a wide range of consumer, industrial and appliance applications. Additionally, the MCUs are prepared for Internet of Things (IoT) solutions.