IC/Module: MAX232N Dual EIA-232 Drivers/Receivers
The integrated MAX232N is a dual EIA-232 driver/receiver that operates from a single 5-V power supply and converts a serial signal from TTL to RS232C standard and vice versa through a built-in voltage generator. The two RS232 drivers interface standard logic level to RS232 levels while the two receivers interface RS232 levels to standard logic levels.
Two Connectors
The MAX232 Board features two connectors: a female connector DB9 and a 6-pin connector. While the former enables connection with devices that use RS232 standard (typically a PC), the latter allows for connection with microcontroller pins intended for serial communication (USART).