---
title: "W5100SIO"
url: "https://maker.wiznet.io/WIZnet/resellers/w5100sio/"
markdown_url: "https://maker.wiznet.io/WIZnet/resellers/w5100sio/md"
type: "VAR: Value-Added Reseller Products"
author: "WISIOE"
author_url: "http://www.wisioe.com/content/246.html"
editor: "WIZnet"
editor_url: "https://maker.wiznet.io/"
original_author: "WISIOE"
original_url: "http://www.wisioe.com/content/246.html"
published: "2023-03-24"
language: "en"
hardware: ["WIZnet W5100S"]
likes: 0
views: 213
comments: 0
source: "WIZnet Makers (https://maker.wiznet.io/)"
---

# W5100SIO

> W5100SIO module is the smallest functional module of Ethernet with the core of W5100S chip.

Original author: WISIOE (source: http://www.wisioe.com/content/246.html)

## Components

- **WIZnet W5100S** x 1 ([docs](https://docs.wiznet.io/Product/Chip/Ethernet/W5100S))

## Article

**INTRODUCTION**

W5100SIO module is the smallest functional module of Ethernet with the core of W5100S chip. The module integrates Ethernet rj-45 interface, network transformer, LDO and so on. The main application is to facilitate customer evaluation of W5100S chip and rapid small batch trial production.

**FEATURES**

The characteristics of Full hardware TCP/IP stack -- support TCP, UDP, ICMP, IPv4, ARP, IGMP, PPPoE protocols High-speed SPI host interface -- SPI mode: 0,3 -- SPI clock with a maximum of 70MHz 8-bit data parallel bus interface Bus mode: 8-bit indirect bus Support 4 independent hardware Socket simultaneous communication, communication efficiency does not affect each other Internal 16K byte transceiver cache for TCP/IP packet processing Support power off mode, network wake up Integrated 10BaseT / 100base-t Ethernet PHY Support automatic negotiation (full/half duplex, 10M/100M) Support automatic polarity conversion Network status indicator pin, including network speed indicator (10M/100M), data receiving/sending activity indicator, full/half duplex status indicator and PHY connection status indicator Working voltage 5V

---

Source: https://maker.wiznet.io/WIZnet/resellers/w5100sio/