The Arm Cortex-M189+ MCU is a microcontroller unit (MCU) based on the Arm Cortex-M architecture, designed and developed by Arm Holdings, a British semiconductor and software design company. It serves industries such as industrial automation, automotive, consumer electronics, and IoT (Internet of Things). The Cortex-M189+ is part of Arm's Cortex-M series, known for its energy efficiency, real-time performance, and scalability, making it ideal for embedded applications. Key products in this series include microcontrollers for sensor hubs, motor control, and smart devices.