W5100S In Stock

W5100S Hardwired TCP/IP Ethernet Controller (Multi-Interface)

Name: W5100S Hardwired TCP/IP Ethernet Controller (Multi-Interface)
Brand: WIZnet
SKU: W5100S

W5100S is an enhanced version of W5100, supporting both SPI and parallel interfaces with 16KB TX/RX buffer and 4 sockets. Adds SOCKET-less commands, Wake on LAN (WOL), and PHY power-down mode compared to W5100 — ideal for embedded systems requiring a parallel bus interface.

TCP/IP Stack

Hardwired

Host Interface

SPI + Parallel (8/16-bit)

Buffer Memory

16KB

Sockets

Features

SPI + parallel (8/16-bit bus) interface
16KB TX/RX buffer
4 sockets
SOCKET-less ICMP/ARP commands
Wake on LAN (WOL) support
PHY power-down mode
3.3V I/O with 5V tolerance

Specifications

TCP/IP Stack	Hardwired
Host Interface	SPI + Parallel (8/16-bit)
Buffer Memory	16KB
Sockets	4
Speed	10/100 Mbps
PHY	Integrated
Supply Voltage	3.3V
Package	LQFP80

Applications

EthernetTCP/IPSPIParallelIndustrial

Order Info

Stock, pricing, lead time, and samples for W5100S — 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

Selection guides & comparisons

Guide

Add Wired Ethernet to an MCU: SPI-to-Ethernet Selection Guide

W5100S — Frequently Asked Questions

Where can I buy W5100S?

JLink Technology is an authorized WIZnet distributor serving Taiwan, Mainland China, and Hong Kong. Submit an RFQ for W5100S and we will respond with pricing and lead time within one business day.

Is W5100S in stock?

Stock and lead time for W5100S 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 W5100S datasheet and samples?

Yes. As an authorized WIZnet distributor, JLink Technology can provide the official W5100S datasheet, samples, and engineering support. Contact us to request them.

What is the minimum order quantity for W5100S?

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 W5100S?

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 W5100S where one exists, and quote pricing, stock, and lead time.

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