W5100 In Stock

W5100 Hardwired TCP/IP Ethernet Controller (Classic)

Name: W5100 Hardwired TCP/IP Ethernet Controller (Classic)
Brand: WIZnet
SKU: W5100

The W5100 is WIZnet's classic hardwired TCP/IP Ethernet controller (used on the Arduino Ethernet Shield), integrating 10/100 MAC+PHY, 4 hardware sockets, and a 16KB buffer, with a parallel-bus and SPI host interface in an 80-pin LQFP, 3.3V with 5V-tolerant I/O. The newer W5100S is register/software-compatible with faster SPI in a smaller package.

Type

Hardwired TCP/IP

Hardware Sockets

Internal Buffer

16 KB

Host Interface

Parallel + SPI

Features

Hardwired TCP/IP: TCP/UDP/IPv4/ICMP/ARP/IGMP/PPPoE
4 independent hardware sockets
16 KB internal TX/RX buffer
Integrated 10/100 MAC + PHY
Host interface: parallel bus + SPI
80-pin LQFP, 3.3 V, 5 V-tolerant I/O

Specifications

Type	Hardwired TCP/IP
Hardware Sockets	4
Internal Buffer	16 KB
Host Interface	Parallel + SPI
Ethernet	10/100, integrated MAC+PHY
Package	80-pin LQFP

Applications

Hardwired TCP/IPEthernetW51004 SocketsArduino10/100

Order Info

Stock, pricing, lead time, and samples for W5100 — we reply within one business day.

Request Quote Request datasheet / sample

WIZnet

Korea

Hardwired TCP/IP Ethernet ICs & PoE Modules

View all WIZnet products → Official WIZnet site

W5100 — Frequently Asked Questions

Where can I buy W5100?

JLink Technology is an authorized WIZnet distributor serving Taiwan, Mainland China, and Hong Kong. Submit an RFQ for W5100 and we will respond with pricing and lead time within one business day.

Is W5100 in stock?

Stock and lead time for W5100 vary by quantity. Send us your required quantity via the RFQ form and we will confirm current availability and delivery schedule.

Can I get the W5100 datasheet and samples?

Yes. As an authorized WIZnet distributor, JLink Technology can provide the official W5100 datasheet, samples, and engineering support. Contact us to request them.

What is the minimum order quantity for W5100?

We support orders from prototype samples to mass production. Tell us your target volume in the RFQ and we will quote accordingly.

Is there a pin-compatible alternative or second source for W5100?

Tell us the part you need to replace and your application. As a multi-line authorized distributor, JLink Technology can suggest a verified cross-reference or second source related to W5100 where one exists, and quote pricing, stock, and lead time.

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