The Arm Cortex-M89+ MCU is a microcontroller unit (MCU) developed by Arm Holdings, a British semiconductor and software design company. It belongs to the Cortex-M series, known for its energy efficiency and performance in embedded systems. The Cortex-M89+ is designed for industries such as industrial automation, consumer electronics, and IoT devices, offering features like real-time processing, low power consumption, and enhanced security. Arm Holdings provides the IP core, which is licensed to various manufacturers worldwide for integration into their custom chips.