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The WIZ550io is a compact Ethernet module integrating the W5500 TCP/IP hardwired chip with an embedded PHY and MAG-JACK. It supports 10/100 Mbps speeds via SPI interface, providing eight independent hardware sockets for simultaneous connections. The module operates within a voltage range of 2.97V to 3.63V, drawing up to 132 mA. Designed for surface mount installation in LQFP-48 form factor internally, it functions reliably across temperatures from -40°C to 85°C. This all-in-one solution eliminates complex PCB design requirements for transformers and RJ45 connectors.
Verify component authenticity through authorized distributors. Confirm RoHS compliance and lead-free status during acquisition. Ensure supply chain stability as the product lifecycle is active. Check specific revision markings against official datasheets to guarantee functional equivalence.
Choose this module when hardware compatibility with existing W5100S or W6100 designs is required. Select for applications demanding reduced PCB complexity compared to discrete chip solutions. Opt for this integrated approach when minimizing design effort for Ethernet integration is prioritized over custom PHY selection.
This module belongs to WIZnet's io-series, which combines iEthernet chips with MAG-JACKs. It serves as a drop-in replacement for previous generations like W5100S-io. The series targets developers seeking rapid internet-enabled system prototyping without managing separate MAC, PHY, and transformer components.
W5100S-io and W6100-io are confirmed hardware-compatible substitutes within the same product family. Verify pinout consistency before swapping. No other cross-model replacements are publicly documented.