51 How to build the minimum system of microcontroller

51 The minimum system of a microcontroller usually includes the following parts:

1. 51 MCU itself: that is, the chip of the 51 MCU. There are different models of 51 MCU to choose from.

2. External memory: It can be ROM or EPROM, used to store program code.

3. External crystal oscillator: used to provide clock signals to the 51 microcontroller and control the operating frequency of the 51 microcontroller.

4. Power supply: 51 microcontroller needs power supply to work. Common power supply solutions include using a separate power supply or connecting to the computer via USB.

5. Connection lines: including data lines, address lines and control lines, etc., used to connect the 51 microcontroller and external devices.

6. External devices: They can be LEDs, buttons, displays, etc., used to interact with the 51 microcontroller.

Build 51 monolithic