WIZnet W5100


In stock

SKU: 1490025
  1. Supports 4 independent sockets simultaneously
  2. 0.18 µm CMOS technology
  3. 3.3V operation with 5V I/O signal tolerance
  4. Small 80 Pin LQFP Package
  5. Support Serial Peripheral Interface(SPI MODE 0, 3)

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Brand: WIZnet
Category: USB Interface Module, Electronics Components on Sale

The WIZnet 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 16ytes internal buffer as its data communication memory.

By using WIZnet 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.

Note: for more technical details go through Datasheet in the attachment section


  1. Un-attackable hardware network engine for preventing network attacks such as flooding, spoofing, injection
  2. 4 Independent hardware socket
  3. Internal 16Kbytes memory for TCP/IP packet processing
  4. 10BaseT / 100Base TX Ethernet PHY Embedded
  5. 3.3V Operation with 5V I/O signal tolerance
  6. LED outputs (TX, RX, full/half duplex, Collision, link, speed

Package Includes:

1 x WIZnet W5100

Hardwired TCP/IP protocols


Host Interface

Direct/Indirect Bus & Serial Peripheral Interface (SPI MODE 0, 3)

Shipping Weight 0.003 kg
Shipping Dimensions 9 × 7 × 1 cm
6 Months Warranty

This item is covered with a supplier warranty of 6 months from the time of delivery against manufacturing defects only. This is a quality product from the original manufacturer. Only manufacturing defects are covered under this warranty. Reimbursement or replacement will be done against manufacturing defects.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China