RS232 is a standard interface for serial communication, which specifies the protocol for data transmission through serial circuits. RS232 chip refers to the integrated circuit chip that implements the RS232 standard, which usually includes the function of sending and receiving data. These chips are able to convert data in binary form into level signals that are sent out over serial transmission lines, and are able to receive data from other devices and convert it into a form that computers can recognize. RS232 chip is widely used in computer, communication equipment, industrial automation and other fields, providing a reliable physical interface for data exchange between different devices.
9-pin serial chip, usually connected to serial keyboard mouse printer and other cards