STMicroelectronics X-STM32MP-IGTW1 Expansion Board

STMicroelectronics X-STM32MP-IGTW1 Expansion Board is designed for industrial IoT gateway applications and supports key factory automation serial communication protocols, including CAN bus and ModBus RTU. This board features a power supply ranging from 12V to 24V and interfaces with the STM32MP microprocessor via a 40-pin GPIO connector, utilizing I²C, UART, FDCAN, and GPIO connections. The board is compatible with the STM32MP257F-DK connector layout. The ST4E1240 is a high-speed RS-485 transceiver that supports data rates up to 20Mbps and operates from a 3V to 5.5V supply voltage range.

The ST3232C is a dual RS-232 transceiver operating from 3V to 5.5V, supporting data rates up to 400kbps. The M41T83 is a Real-Time Clock (RTC) with a built-in battery backup, providing accurate timekeeping for embedded systems. The STSAFE-A110 is a secure element on the board that provides hardware-based authentication and cryptographic services, ensuring data integrity and confidentiality. Typical applications include remote monitoring and control and factory automation.

Features

ST4E1240 high-speed RS-485 transceiver IC
ST3232 RS-232 transceiver IC
M41T83 on board Real-Time Clock (RTC) with built-in battery backup
STSAFE-A110 for authentication, state-of-the-art security for peripherals and IoT devices
High-speed CAN transceiver
M24C32-R, EEPROM for automatic GPIO setup and driver setup

L6983: DC-DC converter used to step down an input voltage (Vin) from 12V to 4V to 5V
L6983: DC-DC converter used to further step down the 5V output from the L6983N50QTR to 3.3V
Signalizing LEDs and switches for user interface
Compatible with STM32MP257F-DK’s GPIO connector