Maxim MAXREFDES62 RS-485 Communications Micro PLC Card

Maxim MAXREFDES62 RS-485 Communications Micro PLC Card features two RS-485 transceivers (one full duplex and one half duplex) with isolated power and data. 

This reference design integrates one half-duplex RS-485 transceiver (MAX14783E); one full-duplex RS-485 transceiver (MAX14789E); 600VRMS data isolation (MAX14850); a STM32F1 microcontroller; a FTDI USB-UART bridge; and isolated/regulated +3.3V power rails (MAX17498C / MAX17515). 

The entire system typically operates at less than 500mW and fits into a space roughly the size of a credit card. While targeted for industrial and micro PLC applications, it can be used in any application that requires high RS-485 data rates and ESD protection.

Features

• High-speed RS-485 communication
• Isolated power and data
• Micro PLC form factor
• Extended Protection with TVS on RS-485 Lines
• Device drivers
• Example C source code
• Test data

Datasheet