Microcontroller Unit (Microcontroller Unit; MCU (Single Chip Microcomputer), also known as a single chip microcomputer, is a Central Process Unit (Central Process Unit; CPU) frequency and specifications to be appropriately reduced,
And the memory (memory), counter (Timer), USB, A\/D conversion, UART, PLC, DMA and other peripheral interfaces, and even LCD driver circuits are integrated on a single chip to form a chip-level computer, for different applications to do different combination control.
Such as mobile phones, PC peripherals, remote controls, to automotive electronics, industrial stepper motors, robot arm control, etc., can be seen in the MCU figure.
It can also be considered as a general term for 51 single chip microcomputer, ARM, DSP and such chips.