MCU (Microcontroller Unit) is a microcontroller, also known as a single-chip microcomputer, which is a microcomputer that integrates the core functions of a computer. MCU integrates the central processing unit (CPU), memory (such as ROM and RAM), input and output interface (I/O), timer and other functional modules on a single chip to form a complete control system. Industrial MCU (Microcontroller Unit) is a single-chip microcomputer designed for industrial control and automation applications and is widely used in the field of industrial control.