What is a single chip microcomputer?

MCU, English for micro-control unit, means micro-control unit, also known as single chip microcomputer or single chip microcomputer, is a central processing unit (Central Process Unit；; The frequency and specification of CPU are appropriately reduced, and peripheral interfaces such as memory, timer, USB, A/D converter, UART, PLC, DMA and even LCD driver circuit are integrated on a chip to form a chip-level computer, and different combination controls are carried out for different applications.

With the development of upstream and downstream industries and the overall development of electronic information industry, MCU can be found everywhere in various application fields, such as mobile phones, PC peripherals, remote controllers, thermometers, CD players, electric meters, motors, fax machines, automotive electronics, industrial stepping motors, robotic arm control, medical care, AI and so on. , all over the middle, high and low-end fields.

After understanding the basic concept of single chip microcomputer, let's look at the classification of single chip microcomputer. In this paper, single-chip computers are classified according to their uses, data bits processed by basic operations, memory structures, memory types, instruction structures, etc.

According to the purpose, it can be divided into general MCU and special MCU, in which general MCU refers to exploitable resources (ROM, RAM, I/O,? EPROM) and so on are provided to the user's MCU；; Dedicated MCU means that hardware and instructions are designed according to specific purposes, such as core controller of recorder, printer controller, motor controller and so on.

According to the number of data bits processed by its basic operation-according to the width of bus or data register, single chip microcomputer can be divided into 1 bit, 4-bit, 8-bit, 16-bit, 32-bit or even 64-bit.

According to the type of memory, it can be divided into two types: non-on-chip ROM type and on-chip ROM type.

According to the memory structure-MCU can be divided into Harvard structure and von? Von Neumann structure.

According to the instruction structure-according to the instruction structure, it can be divided into CISC (complex instruction set computer) and RISC (reduced instruction set computer microcontroller).

True light technology provides customers with processors such as MCU products with high cost performance. True Light Technology is an authorized agent of well-known MCU brands at home and abroad, such as Epson. With the advance of domestic demand, in 20021year, Zhenguang Technology added cooperative brands in the fields of processors such as MCU and power devices such as high-voltage MOS, and continued to provide customers with more competitive products and services.