The Arm Cortex-M313+ MCU is a microcontroller unit (MCU) based on ARM's Cortex-M3 architecture, designed by ARM Holdings, a British semiconductor and software design company. ARM, founded in the UK and now a subsidiary of SoftBank Group, licenses its processor designs to various manufacturers for use in embedded systems. The Cortex-M313+ MCU serves industries such as industrial automation, IoT, automotive, and consumer electronics, offering high performance, low power consumption, and real-time capabilities. It is commonly used in applications like motor control, sensors, and smart devices. Major manufacturers like STMicroelectronics, NXP, and Texas Instruments produce MCUs based on this architecture.