According to a query from Knowledge, in a microcontroller system, a driver chip is a device used to drive a peripheral to realize the control and data transfer of the peripheral through the interface with the peripheral. In a microcontroller system, the driver chip is usually controlled by the microcontroller, and the working state of the peripheral is controlled through the instructions issued by the microcontroller. In some complex applications, multiple driver chips are required to work together to realize the control and data transmission of multiple peripherals. Therefore, in the microcontroller system, the driver chip is one of the essential devices, they can make the microcontroller better play its control and data processing capabilities, to achieve more complex and efficient applications.