Built-in W5100S
Support hardwired TCP/IP (4 sockets) · 16KB socket buffers
WIZ810Sio
WIZ810Sio is the internet offload network module that includes W5100S (TCP/IP hardwired chip, include PHY), MAG-JACK (RJ45 with X’FMR) with other glue logics. It can be used as a component and no effort is required to interface W5100S and Transformer. The WIZ810Sio is an ideal option for users who want to develop their Internet enabling systems rapidly.
ioModule Form Factor
Support 2×10, 2.54mm header · compact pluggable
SPI, 8-bit BUS
Support SPI (MODE 0/3) and 8-bits Parallel BUS
Ethernet MACPHY
Support 10BaseT/10BaseTe/100BaseTX Ethernet MACPHY
Datasheet
Docs
StoreKey Features
Internet Protocols
TCP, UDP, WOL over UDP, ICMP, IGMPv1/v2, IPv4, ARP, PPPoE
Integrated RJ-45 (MagJack)
Support transformer & Link/Act LEDs built-in
Dedicated TX/RX Buffers
Support 32KB configurable allocation for stable throughput
3.3V -40℃ to 85℃
Support 3.3V Operation with 5V I/O tolerance
Pin Information
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
| 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 |
Power Dissipation
| 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
| Name | Description | Notes | |
|---|---|---|---|
| User Manual | Technical guide for WIZ810Sio module usage | WIZ810Sio User Manual v1.0 |
WIZ810Sio User Manual v1.0 
|
Mechanical Information
- Form factor: ioModule with integrated RJ45 MAG-JACK
- Pin pitch: 2.54 mm (Pin header)
- Dimensions: 23 × 25 mm
Related modules
Complementary WIZnet solutions with diverse interfaces and performance levels
Evaluation Boards
W5100S
The W5100S chip is a cost-effective embedded Internet controller featuring a full hardwired TCP/IP stack based on WIZnet technology. It enables internet connectivity through either SPI or Parallel System BUS, supporting up to 70MHz clock speed on SPI for seamless connection to external MCUs. This chip integrates a 10/100 Ethernet MAC and PHY, providing a single-chip solution for reliable internet access. It supports major TCP/IP protocols and offers 4 independent sockets along with 16KB of internal memory for efficient data handling. The W5100S facilitates easy Ethernet application development with its simple SOCKET programming, includes energy-saving features like WOL and Power Down Mode, and is backward compatible with W5100 firmware. Available in 48 Pin LQFP and QFN Lead-Free packages, the W5100S is designed for embedded systems requiring stable and low-cost internet connectivity.
W5100S-io
W5100S-io is a compact size network module that includes a W5100S (TCP/IP hardwired chip and PHY embedded).It can be used as a component and no effort is required to interface W5100S. The W5100S-io an ideal option for users who want to develop their Internet enabling systems rapidly. W5100S-io is hardware compatible with W5500-io and W6100-io.
WIZ810SMJ
WIZ810SMJ is the network module that includes W5100S (TCP/IP hardwired chip, include PHY), MAG-JACK (RJ45 with X’FMR) with other glue logics. It can be used as a component and no effort is required to interface W5100S and Transformer. The WIZ810SMJ is an ideal option for users who want to develop their Internet enabling systems rapidly.
WIZ810Sio
Subscribe Newsletter© 2025. WIZnet Co., Ltd. All Rights Reserved.
Search
Find WIZnet products like the W5500, W5100S, W6100, and new ioNIC series chips. Enter product names, model numbers, or keywords to explore our range of networking solutions. Start your search now!
