W5200

Overview

The W5200 is an embedded Ethernet controller integrating a full hardware TCP/IP protocol stack, MAC, and PHY. It supports 10BASE-T and 100BASE-TX standards with data rates of 10 Mb/s and 100 Mb/s. The device operates on a 3.3V supply voltage (2.97V to 3.63V) with 5V tolerant I/Os. It features eight independent sockets and 32KB of internal TX/RX buffer memory. Connectivity is provided via SPI interface alongside MDI/MDI-X ports. The component is housed in a QFN-48 package and functions within a temperature range of -55°C to +85°C.

Feature Summary

• Integrates a complete hardware TCP/IP protocol stack including TCP, UDP, IPv4, ICMP, ARP, IGMP, and PPPoE to offload processing from the host MCU.
• Supports eight simultaneous independent socket connections for concurrent network communication tasks.
• Includes an embedded 10/100Mbps Ethernet PHY with automatic duplex mode negotiation and auto-polarity correction capabilities.

Applications

• Compact smart home devices requiring reduced PCB footprint
• Small sensor networking modules
• Industrial control systems with space constraints

Procurement Notes

Verify current availability status as the component is marked NRND. Confirm specific ordering suffixes for packaging variations such as reel quantities. Ensure compatibility with existing design layouts before procurement due to potential lifecycle changes.

Selection Notes

Select this model when project requirements demand a balance between performance and physical size. It serves as an optimized successor to larger packages, offering doubled socket capacity compared to earlier generations while maintaining a compact form factor suitable for dense circuit designs.

Part Context

The W5200 represents an evolution in WIZnet's hardwired TCP/IP controller lineup, positioned between legacy large-footprint controllers and newer high-performance variants. It addresses the need for smaller enclosures in IoT applications without sacrificing multi-socket concurrency or protocol support.

Replacement Considerations

Consider the W5500 for projects requiring lower power consumption and improved PHY compatibility. The W5100 may be used if larger package footprints are acceptable and cost reduction is prioritized over socket count.