WIZ750SR-232

Overview

The WIZ750SR-232 is a serial-to-Ethernet module based on the WIZnet W7500P chip, which integrates an ARM Cortex-M0 core and embedded PHY. It supports RS-232 communication with a maximum baud rate of 230 kbps. The device operates within a temperature range of 0°C to 80°C and requires a 5V power supply. It features a hardwired TCP/IP stack supporting TCP, UDP, IPv4, ICMP, ARP, IGMP, and PPPoE protocols. The module is software and hardware compatible with the WIZ107/108SR series.

Feature Summary

• Integrates a hardwired TCP/IP SoC with an ARM Cortex-M0 core and embedded Ethernet PHY for simplified network implementation.
• Provides direct conversion between RS-232 serial data and Ethernet packets without requiring complex driver development.
• Supports standard industrial network protocols including TCP, UDP, IPv4, ICMP, ARP, IGMP, and PPPoE.

Applications

• Industrial automation systems requiring serial device connectivity over Ethernet networks.
• Remote monitoring applications where legacy RS-232 equipment must be integrated into IP-based infrastructure.
• Data acquisition systems utilizing the WIZ750SR evaluation board for prototype development.

Procurement Notes

Verify the specific revision level against the manufacturer's documentation to ensure compatibility with existing firmware or integration requirements. Confirm that the RS-232 interface version matches the target system's physical connector specifications. Check for any updated RoHS compliance certifications prior to final procurement decisions.

Selection Notes

Select this model when a dedicated RS-232 interface is required rather than TTL or RS-485 variants. Ensure the application environment stays within the specified 0°C to 80°C operating temperature range. Consider the WIZ750SR-EVB if hardware testing and GPIO expansion capabilities are needed during the design phase.

Part Context

This component belongs to the WIZ750SR family of serial-to-Ethernet modules manufactured by WIZnet Inc. It serves as a drop-in replacement for the older WIZ107 and WIZ108SR models, offering backward compatibility while leveraging the newer W7500P processor architecture for improved performance and integration.

Replacement Considerations

Publicly confirmed substitutes include the WIZ107SR and WIZ108SR models due to documented software and hardware compatibility. Verify pinout and voltage levels before swapping these units in existing designs.