The Arm Cortex-M345+ MCU is a microcontroller unit (MCU) based on the Arm Cortex-M architecture, developed by Arm Holdings, a British semiconductor and software design company. Arm Holdings, headquartered in Cambridge, UK, is a subsidiary of SoftBank Group. The Cortex-M345+ is designed for embedded and IoT applications, serving industries such as industrial automation, consumer electronics, automotive, and smart devices. It features low power consumption, high performance, and enhanced security, making it suitable for real-time control systems and connected devices. Key products in this series include microcontrollers with integrated peripherals, DSP capabilities, and machine learning acceleration.