WIZ810Sio
WIZ810Sio

The WIZ810Sio is an Ethernet module based on the W5100S hardwired TCP/IP chip with an integrated PHY and RJ45 (MAG-JACK).
It is designed for easy Ethernet integration without complex PCB layout or external transformer requirements.
The module is ideal for embedded systems that require quick and reliable Internet connectivity via SPI.
Pin Information
- All Pins

J1
Pin | Type | Name | Description |
---|---|---|---|
1 | P | GND | Ground |
2 | I | GND | Ground |
3 | O | MOSI | SPI Master-Out / Slave-In |
4 | I | SCLK | SPI Clock input |
5 | I | SCSn | SPI Chip select (active low) |
6 | O | INTn | Interrupt output (active low) |
J2
Pin | Type | Name | Description |
---|---|---|---|
1 | P | GND | Ground |
2 | P | 3V3 | Power supply (3.3 V) |
3 | I | 3V3 | Power supply (3.3 V) |
4 | I | NC | Not connected |
5 | O | RSTn | Hardware reset (active low, ≥ 500 µs) |
6 | O | MISO | SPI Master-In / Slave-Out |
Features
- Supports hardwired TCP/IP protocols: TCP, UDP, ICMP, IGMPv1/v2, IPv4, ARP, PPPoE
- Supports Wake-on-LAN (UDP) and WOL over UDP
- 4 independent sockets with 16 KB internal buffer (TX/RX)
- Supports SOCKET-less commands (ARP, PING)
- Auto-Negotiation and Auto-MDIX (10/100 Mbps)
- Ethernet power-down and clock gating for low power
- High-speed SPI interface (Mode 0/3)
- Integrated transformer and RJ45 MAG-JACK
- Compact form factor: 23 × 25 mm
Electrical Characteristics
- DC Characteristics
- Power Dissipation
Symbol | Parameter | Pins | Min | Typ | Max | Unit |
---|---|---|---|---|---|---|
VDD | Supply voltage | 3.3 V | 2.97 | 3.3 | 3.63 | V |
VIH | High-level input | ALL | 2.0 | – | - | V |
VIL | Low-level input | ALL | – | – | 0.8 | V |
VOH | High-level output | ALL | 2.4 | 3.3 | – | V |
VOL | Low-level output | ALL | - | – | 0.4 | V |
Condition | Min | Typ | Max | Unit |
---|---|---|---|---|
100M Link | – | 93 | 110 | mA |
10M Link | – | 93 | 210 | mA |
Un-Link (Auto-negotiation) | – | 43 | 170 | mA |
Power Down mode | – | 10 | 20 | mA |
Documentation
Title | Description | Link |
---|---|---|
User Manual | Technical guide for WIZ810Sio module usage |
Software Resources
- Driver
Driver
Resource | Description |
---|---|
Official WIZnet driver library for W5100S and related chips |
Note: The ioLibrary_Driver is an MCU-independent library supporting WIZnet’s W5x00/W6x00 family.
It provides essential TCP/IP functionalities, such as DHCP, DNS, and HTTP server.
Hardware Resources
Title | Revision | Description | Download | Notes |
---|---|---|---|---|
schematic | 1.0 | Circuit diagram for hardware design reference | — | |
3D File | 1.0 | 3D model for mechanical design and visualization | — | |
Part list | 1.0 | List of components used in the hardware | — |
Mechanical Information

- Form factor: ioModule with integrated RJ45 MAG-JACK
- Pin pitch: 2.54 mm (Pin header)
- Dimensions: 23 × 25 mm
Related Products
Product | Description |
---|---|
W5100S Chip | Hardwired TCP/IP Ethernet controller with PHY |