The Arm Cortex-M397+ MCU is a microcontroller unit (MCU) series developed by Arm Holdings, a British semiconductor and software design company. These MCUs are widely used in embedded systems across industries such as automotive, industrial automation, consumer electronics, and IoT. The Cortex-M397+ series is known for its high performance, energy efficiency, and real-time processing capabilities, making it ideal for applications requiring robust computing power and low power consumption. Arm licenses its designs to various manufacturers, enabling them to produce customized chips for diverse industrial and commercial needs.