WIZ550S2E

Overview

The WIZ550S2E is a serial-to-Ethernet module based on the W5500 hardwired TCP/IP controller and an LPC11E36FHN33 MCU. It supports RS232 and RS422/485 interfaces via a 2.54mm header. The device operates on DC +3.3V with a typical current consumption of 140mA. It features an integrated RJ45 connector with a transformer, hardware trigger input, factory reset capability, and status LED outputs. The operating temperature range is -40°C to 85°C.

Feature Summary

• Integrates W5500 Ethernet controller for direct TCP/IP connectivity
• Supports RS232 and RS422/485 serial communication protocols
• Includes hardware trigger and factory reset inputs for system control
• Provides status output pins for operational monitoring

Applications

• Industrial automation systems requiring serial-to-Ethernet conversion
• Remote monitoring devices in harsh environments
• Embedded IoT gateways connecting legacy serial equipment to networks

Procurement Notes

Verify the specific revision number (e.g., 1.1) against the latest datasheet before procurement, as schematic and part list details may vary between revisions. Confirm that the LPC11E36FHN33 MCU availability aligns with long-term production plans. Ensure the +3.3V power supply meets the 140mA typical current requirement during peak operation to maintain stable performance within the specified industrial temperature range.

Selection Notes

Select this module when a complete serial-to-Ethernet solution with integrated TCP/IP stack is required without external protocol processing. It is suitable for designs needing RS485 or RS232 compatibility with standard UART signals. Consider the 2.54mm header interface for easy integration into custom carrier boards. Verify that the host system can provide the necessary GPIO signals for hardware trigger and reset functions if these features are utilized in the application design.

Part Context

This component belongs to the WIZ550 series of serial device servers manufactured by WIZnet. It utilizes the company's proprietary hardwired TCP/IP technology embedded in the W5500 chip. The module simplifies network integration for microcontroller-based systems by handling Ethernet protocols internally, reducing the computational load on the main processor compared to software-based stack implementations.

Replacement Considerations

The WIZ550S2E-S1 is a pin-compatible variant within the same product family. Verify interface compatibility and firmware differences before substitution. Other W5500-based modules may require significant schematic and layout changes due to different pinouts or power requirements.