WIZ105SR

Overview

The WIZ105SR is a serial-to-Ethernet interface module manufactured by WIZnet. It integrates the W5100 Ethernet controller, which features a hardwired TCP/IP protocol stack to offload processing from the host microcontroller. The module provides one RS-232 serial port and connects to an Ethernet network via an RJ-45 interface. It operates on a 5V power supply and supports data rates up to 230 kbps for the serial connection. The device is designed for embedded applications requiring reliable network connectivity.

Feature Summary

• Integrates W5100 chip with hardwired TCP/IP protocol stack
• Converts RS-232 serial signals to TCP/IP packets
• Supports PPPoE connection and authentication configuration
• Includes simple command-based serial configuration

Applications

• Remote equipment management and control
• Industrial data acquisition nodes
• Serial device networking

Procurement Notes

Verify component status before procurement as the WIZ105SR is classified as NRND (Not Recommended for New Designs). Confirm availability through authorized distributors and check for end-of-life notifications or discontinuation schedules prior to finalizing design integration.

Selection Notes

Select this module when utilizing legacy RS-232 devices that require Ethernet connectivity. Ensure the host system can accommodate the 5V operating voltage. Consider newer alternatives if designing new products due to the NRND status of this specific model.

Part Context

WIZnet specializes in full hardware TCP/IP Ethernet controllers. The WIZ105SR belongs to their series of serial device servers, leveraging the company's TOE technology to simplify embedded internet connections without complex software stacks.

Replacement Considerations

Check for WIZ750SR-105 or similar updated modules. Verify pin compatibility and voltage levels (3.3V vs 5V) when substituting.