What is the function of Max232?

The MAX232 is an integrated circuit that converts signals between RS-232 and TTL/CMOS voltage levels. RS-232 is a widely used standard for serial communication between computers and peripheral devices. It uses voltage levels of +12 V and -12 V, which can be hazardous to sensitive electronic components. TTL and CMOS are logic families that use voltage levels of 0 V and 5 V, respectively.

The MAX232 converts the RS-232 voltage levels to TTL/CMOS levels, and vice versa. This allows computers and peripheral devices to communicate with each other, even if they use different voltage levels.

The MAX232 also provides other features, such as:

* Signal inversion: The MAX232 can invert the polarity of the RS-232 signals. This allows it to be used with both non-inverting and inverting RS-232 devices.

* Baud rate generation: The MAX232 can generate standard baud rates from 300 bps to 19.2 kbps.

* Driver enable/disable: The MAX232 can enable or disable the RS-232 drivers. This can be used to turn the RS-232 port on or off.

The MAX232 is a widely used, versatile integrated circuit that is essential for serial communication between computers and peripheral devices.