MAX3232 Module RS232 to TTL Converter Adaptor Board

From the shop's description

The Serial Port Mini RS232 to TTL Converter Adaptor Module Board MAX3232 is a professional module for projects requiring PC/Laptop RS232 interface to 5V TTL logic. This module converts signals between RS232 voltage levels and TTL voltage levels. It is bi-directional, where TTL signals are converted to RS232 levels and RS232 levels are converted to TTL levels. It is ideal for use in pc interfacing, microcontroller based projects, robotics, or for experimental and educational purposes. Features: High speed, replaceable MAX3232 based. The device fitted supports up to 120kbps Works with PCs or Laptops Supports microcontroller UARTs – 5V TTL signal levels. Single DC supply: wide input range for 4201 or 5V for 4202 and 4203 Low current status LED(s) Very low power consumption Optional onboard PSU for internal/external use for a quick start out of the box. Power can be routed to pin 9 (if required) on the RS232 connector – useful for specific applications. Specifications: Chip Model MAX3232CSE. Protocol RS232 Operating Voltage 3~5V. Max. Baud Rate No more than 120kbps. Operation Full Duplex Receiver Hysteresis 300mV. Transceiver 2 (1 TTL -> RS232 + 1 TTL <- RS232) Operating Temperature -40°C ~ 85°C Dimensions in mm (LxWxH) 15.5 x 9.3 x 3.5 Pin-outs : – (0V) +(VCC 3.0~5.5V) TTL-TXD TTL-RXD -(0V) +(VCC 3.0~5.5V) RS232-RX RS232-TX