WIZ830MJ

Overview

The WIZ830MJ is a plugin network module manufactured by WIZnet Co., Ltd. It integrates the W5100 TCP/IP hardware chip and a MAG-JACK (RJ45 connector with transformer). The device supports 10/100Base-TX Ethernet standards, including half-duplex and full-duplex modes, with automatic negotiation and auto-cross detection capabilities compliant with IEEE 802.3 and 802.3u. It features an embedded hardware protocol stack supporting TCP, IPv4, UDP, ICMP, ARP, PPPoE, and IGMP, alongside MAC layer protocols. The module provides four independent hardware sockets for simultaneous connections and interfaces via SPI or direct/indirect bus access.

Feature Summary

• Integrates W5100 TCP/IP controller and MAG-JACK into a single plug-in component
• Supports 10/100Base-TX speeds with automatic duplex and crossover detection
• Includes built-in hardware protocol stack for rapid application development

Applications

• Embedded systems requiring fast internet connectivity
• Industrial automation controllers
• Smart home devices

Procurement Notes

Verify the specific manufacturer datasheet to confirm pinout compatibility and voltage levels before integration. Ensure the host microcontroller supports the required SPI or parallel bus interface timing. Check RoHS compliance status if environmental regulations apply to the final assembly.

Selection Notes

Select this module when a complete Ethernet solution with integrated PHY and magnetics is required to minimize board space. It is suitable for designs needing four simultaneous hardware socket connections without external protocol stack overhead. Consider the LQFP-100 based W5100 chip requirements for thermal management in enclosed enclosures.

Part Context

This module belongs to the WIZnet WIZ8xxIO series of plugin network modules. These components are designed to simplify Ethernet integration by combining the controller, PHY, and magnetic isolation into one unit. The series allows developers to add network capabilities to microcontrollers without designing complex analog front-end circuits.

Replacement Considerations

The WIZ811MJ is a similar module within the same product family offering comparable integration. Verify that any substitute maintains support for the 10/100Base-TX standard and compatible interface protocols.