WIZ-IP55
WIZ-IP55
WIZ-IP55 is a network offloading module that integrates the W5500 chip (with built-in PHY physical layer and TCP/IP hardware protocol stack) and an RJ45 connector with integrated network transformer. As a plug-and-play component, it enables seamless interface connection between the W5500 and the transformer without the need for additional circuit design.
For users who wish to quickly develop networked systems, WIZ-IP55 is an ideal choice.
Pin Information
- All
P1
| Pin | Type | Name | Description |
|---|---|---|---|
| 1 | I | MISO | SPI Master-In / Slave-Out |
| 2 | I | CLK | SPI clock input |
| 3 | I | CSn | SPI Master-Out / Slave-In |
| 4 | P | GND | Ground |
| 5 | P | VCC | 3.3 V Power supply |
| 6 | O | ACT | Activity LED signal |
| 7 | – | LED1- | Connect to ACT |
| 8 | – | LED1+ | Connect in series with resistor to VCC |
P2
| Pin | Type | Name | Description |
|---|---|---|---|
| 1 | I | MOSI | SPI Master-Out / Slave-In |
| 2 | I | INTn | Interrupt output (low-active) — indicates socket events like connection, disconnection, data reception, and WOL |
| 3 | I | RSTn | Hardware reset input (active low, ≥ 500 µs) |
| 4 | I | SCL | IIC clock line |
| 5 | I | SDA | IIC data cable |
| 6 | O | LINK | Network connection LED signal |
| 7 | – | LED2- | Connect to LINK |
| 8 | – | LED2+ | Connect in series with resistor to VCC |
Wait at least 50 ms after RSTn goes high before SPI communication.
Features
- Supports full hardware TCP/IP protocol: TCP, UDP, WOL, ICMP, IGMPv1/v2, IPv4, ARP, PPPoE
- Supports 8 independent SOCKET concurrent communication
- Supports half-duplex/full-duplex operation mode
- Supports Ethernet power-off mode
- Supports UDP-based network wake-up (WOL) function
- High-speed SPI interface (MODE 0/3)
- Built-in total 32Kbytes of send/receive cache
- Integrated 10BaseT/100BaseTX Ethernet PHY
- Supports Ethernet auto negotiation (full/half-duplex,10Base-T/100Base-TX)
- Operating voltage:3.3V (I/O compatible with 5V signal voltage)
- 19-pin pin header interface
- Package size (length×width×height):32.5×16.5×17.3(mm)
- Compatible with WIZnet's IO module carrier board development board
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 | 2.3 | – | 5.5 | V |
| VIL | Low-level input | ALL | –0.3 | – | 0.9 | V |
| VOH | High-level output | ALL | 2.9 | 3.3 | – | V |
| VOL | Low-level output | ALL | 0.0 | – | 0.52 | V |
| IDD | Supply current (Normal) | 3.3 V | 152 | 162 | 173 | mA |
| Condition | Min | Typ | Max | Unit |
|---|---|---|---|---|
| 100 Mb/s Link | – | 128 | – | mA |
| 10 Mb/s Link | – | 75 | – | mA |
| Unlink (Auto-negotiation) | – | 65 | – | mA |
| 100 Mb/s Tx | – | 132 | – | mA |
| 10 Mb/s Tx | – | 79 | – | mA |
Documentation
This section provides key documentation, including user manuals and datasheets, to help you understand product features, specifications, and usage.
| Title | Description | Link | Notes |
|---|---|---|---|
| Datasheet | Technical specifications and features of the W5500 chip |  EN / 한국어 | - |
SPI operation of WIZ-IP55 follows W5500. For more information about SPI operation of W5500, please refer to W5500 Datasheet.
Software Resources
- Driver
- Application Note
Driver
| Resource | Description |
|---|---|
| ioLibrary_Driver | Official WIZnet driver library for W5500 and other chips |
The ioLibrary_Driver is an MCU-independent library for WIZnet W5x00, W6x00 chips .
It provides implementations of essential TCP/IP services, enabling developers to build network applications with minimal MCU dependencies.
Supported services
DHCP, DNS, MQTT, SNTP, TFTP, HTTP Server
Application Note
| Example Name | Description | Notes |
|---|---|---|
| TCP Function | How to use TCP Function | ITCP Function handles IPv4 layer communication |
| UDP Function | How to use UDP Function | UDP Function handles IPv4 layer communication |
| IPRAW | How to use IPRAW Mode | IPRAW Mode handles IPv4 layer communication |
| PPPoE | How to use PPP/PPPoE | PPP is Link-Layer protocol for point-to-point |
These application notes explain how to use W5500's core networking functions including TCP, UDP, IPRAW mode, and PPPoE protocols.
Hardware Resources
| Title | Revision | Description | Download | Notes |
|---|---|---|---|---|
| Schematic | 1.0 | Circuit diagram for reference | TBD |
Mechanical Information
- Form factor: Plug-in Port module
- Pin pitch: 2.54 mm
- Dimensions: 32.5 × 16.5 mm
Related Products
| Product | Description |
|---|---|
| W5500 Chip | Hardwired TCP/IP Ethernet controller with integrated PHY |