The Arm Cortex-M354+ MCU is a microcontroller unit (MCU) based on the ARM Cortex-M series, designed by ARM Holdings, a British semiconductor and software design company. ARM Holdings is headquartered in Cambridge, UK, and is a subsidiary of SoftBank Group. The Cortex-M series serves various industries, including industrial automation, consumer electronics, automotive, and IoT (Internet of Things). The Cortex-M354+ MCU is tailored for high-performance embedded applications, offering features like low power consumption, real-time processing, and robust security. It is widely used in devices such as sensors, motor controls, and smart home systems. ARM licenses its designs to manufacturers like STMicroelectronics, NXP, and Texas Instruments, who produce the actual MCUs.