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Quick Overview

3 in 1 chip for the Internet connectivity
Hardwired TCP/IP + MAC + PHY
High Speed SPI Interface


Hardware TCP/IP Performance and Ease of Use to Low-Cost ‘IoT’ Applications

Product Description

The W5500 chip is a Hardwired TCP/IP embedded Ethernet controller that enables easier internet connection for embedded systems using SPI (Serial Peripheral Interface). W5500 suits users in need of stable internet connectivity best, using a single chip to implement TCP/IP Stack, 10/100 Ethernet MAC and PHY. Hardwired TCP/IP stack supports TCP, UDP, IPv4, ICMP, ARP, IGMP and PPPoE..


  • 48LQFP lead-free package (7x7mm, 0.5mm pitch)
  • Hardwired TCP/IP protocols: TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE
  • Unattackable hardware engine for preventing network attacks such as flooding, spoofing, injection
  • Host Interface: SPI (up to 80MHz, mode 0, 3)
  • 8 Independent hardware socket
  • Internal 32Kbytes memory for TCP/IP packet processing
  • 10BaseT / 100Base TX Auto Negotiable Ethernet PHY Embedded
  • 3.3V Operation with 5V I/O signal tolerance
  • LED outputs (full/half duplex, link speed, active)
  • Reduced heat dissipation (W5500: 40℃ / other chips : 60-70℃)
  • More efficient power operation: power down & wake-on LAN over UDP


Related Links

W5500 Data sheet

W5500 Application notes

W5500 Linux Driver

W5500 and ioShield-A: a what's old is new again

Minimal HTTP server with W5500

More references for W5500 in the WIZnetMuseumLogo WIZnetMuseum

Additional Information

Delivery Time No
Dimension 7 x 7 mm
Ethernet I/F MDI (PHY)
Operating Temperature -40°C to +85°C
Operating Voltage No
Functions No
Auto Negotiation Yes
Processing Structure No
Network sockets count 8
internal DPRAM buffer memory 32 kB
Package No
pin count No
auto MDIX No
Wake on Lan Yes
Power Down Mode Yes
typ. Power Consumption 132 mA
SPI (max. speed) 85 MHz
PHY chip internal
pin pitch No
Ethernet Speed No
parallel memory bus No
Manufacturer No

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