The Arm Cortex-M323+ MCU is a microcontroller unit developed by Arm Holdings, a British semiconductor and software design company. It belongs to the Cortex-M series, which is widely used in embedded systems for industrial, automotive, and consumer electronics applications. The Cortex-M323+ MCU is optimized for low-power, high-performance computing, serving industries such as IoT, automation, and smart devices. Arm Holdings provides the IP core, which is then licensed to various manufacturers for integration into their own chips.