€4.00 €3.36
Delivery Time
5 - 7 d
3 in 1 chip for the Internet connectivity Hardwired TCP/IP + MAC + PHY SPI Interface (Mode 0) and indirect parallel bus

Product Description

All-in-One Ethernet Controller

The W5100 chip is a Hardwired TCP/IP embedded Ethernet controller that enables easier Internet connection for embedded systems. W5100 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, which has been proven through various applications over many years. W5100 uses a 16 kBytes internal buffer as its data communication memory. By using W5100, users can implement the Ethernet application they need by using a simple socket program instead of handling a complex Ethernet Controller. It is possible to use 4 independent hardware sockets simultaneously. Bus (Direct & Indirect) & SPI (Serial Peripheral Interface) are provided for easy integration with the external MCU.



  • 80LQFP lead-free package (10x10mm)
  • Hardwired TCP/IP protocols: TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE
  • Un-attackable hardware network engine for preventing network attacks such as flooding, spoofing, injection
  • Host Interface : Direct/Indirect Bus & Serial Peripheral Interface (SPI MODE 0)
  • 4 Independent hardware socket
  • Internal 16Kbytes memory for TCP/IP packet processing
  • 10BaseT / 100Base TX Ethernet PHY Embedded
  • Support Auto-Negotiation (Full & Half Duplex, 10 & 100 Based)
  • Support Auto-MDIX
  • 3.3V Operation with 5V I/O signal tolerance
  • LED outputs (TX, RX, full/half duplex, Collision, link, speed)

Related Links

WIZnet Documentation

W5100 product page on wiznet.io

More Information
Manufacturer WIZnet
Dimension 10 mm x 10 mm
Ethernet I/F PHY
Operating Temperature -40 °C to +85 °C
Operating Voltage 3.3 V / 5 V
Functions 3-in-1, TCP/IP + MAC + PHY
Network sockets count 4
internal DPRAM buffer memory 16 kB
Package LQFP
pin count chip 80
MCU I/F 8 bit (indirect)
Ethernet Speed 10/100
Protocol IPv4
Auto Negotiation Yes
Wake on Lan No
Power Down Mode No
MCU core ARM Cortex M0
Core speed 96 MHz
Write Your Own Review
You're reviewing:W5100
We found other products you might like!