What is the difference between 8086 microcontroller and 89C51 microcontroller

8086 belongs to the micro process unit (MPU) and is a microprocessor.

And 8051 is a single-chip microcomputer.

It belongs to the micro controller unit (MCU). The former is equivalent to the human brain, that is, the CPU of the computer, which is the core component of information processing, but if you want to form a complete set of von Roymann structure, you need to add various controllers, such as the 8255 parallel port.

Extension, 8253 timer, 8259 interrupt control, etc. Plus these controllers constitute the earliest industrial control unit - single-board computer, but the latter is developed on the basis of the former, which is to integrate the central processing unit and various controllers on a chip, so it is called a single-chip microcomputer...

8086 is a 16-bit chip, which is a processor, not a microcontroller.

The first generation of IBM commercial computers used this CPU

The 89C51 is an 8-bit microcontroller.

All are 8-bit machines, the instruction set is different 8086 internal no peripherals (io driver, memory, timer, etc.), the main function is in io bus control and memory control, 8051 integrates a variety of peripherals, is a complete system, can complete the control function alone The overall feeling is that 8051 is a control system, and 8086 is the key component responsible for control and calculation in the system.

The 8086 is a 16-bit microprocessor of the Inter series, with 10,000 transistors on the chip, manufactured using HMOS technology, with a single ruler orange and a +5V power supply, and a clock frequency of 5MHz 10MHz.

A microprocessor is a monolithic microcomputer (including CPU, RAM, ROM, various registers, I-O port, serial port, etc.).

2. CPU is a super-large-scale integrated circuit, which is the core and control unit of a computer. Its main function is to interpret computer instructions and process data in computer software.

3. The processor mainly includes combinators (arithmetic logic unit, ALU, arithmetic logic unit) and cache memory and the bus (bus) that realizes the connection between them. Together with internal memory and input and output (IO) devices, it is known as the three core components of electronic computers.

1) Program memory (ROM): the capacity of 8051 is 4KB, the capacity of 8052 is 8KB;

2) Data memory (RAM): the capacity of 8051 is 128B, and the capacity of 8052 is 256B;

3) Programmable timing counters: 2 for 8051, 3 for 8052;

4) Interrupt sources: 8051 has 5, 8052 has 6.

All microcontrollers compatible with the Intel8031 command system are collectively referred to as 51 microcontrollers. The 8051 microcontroller is one of the basic models of the 51 series, and the rest are also , which differ only in the on-chip program memory. The 52 series is enhanced, that is, on the basis of the 51 series, the 8052 is one of them, and the rest are .