WIZ-IP55

WIZ-IP55 is a plug-and-play Ethernet network offloading module that combines the W5500 hardwired TCP/IP chip (with built-in PHY) and an RJ45 connector with integrated network transformer, so you can add 10/100 Ethernet with minimal circuit design. It offers 8 simultaneous hardware sockets, a high-speed SPI interface, and 32 KB send/receive buffer, making it ideal for quickly building networked embedded systems

SPI

up to 80MHz speed

Industrial grade

-40℃ to 85℃

Ethernet

10/100 Mbps

Compact Size

32.5×16.5×17.3(mm)

Key Features

Built-in W5500

Hardwired TCP/IP (8 sockets), 32KB socket buffers

Internet Protocols

Support TCP, UDP, IPv4, ICMP, ARP, IGMPv1/v2, PPPoE

Pin Information

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

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

Symbol	Parameter	Pins	Min	Typ	Max	Unit
V_DD	Supply voltage	3.3 V	2.97	3.3	3.63	V
V_IH	High-level input	ALL	2.3	–	5.5	V
V_IL	Low-level input	ALL	–0.3	–	0.9	V
V_OH	High-level output	ALL	2.9	3.3	–	V
V_OL	Low-level output	ALL	0.0	–	0.52	V
I_DD	Supply current (Normal)	3.3 V	152	162	173	mA

Power Dissipation

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.

Name	Description	Notes
Datasheet	Technical specifications and features of the W5500 chip	EN 한국어	EN 한국어

Software Resources

Hardware Resources

Mechanical Information

Form factor: Plug-in Port module
Pin pitch: 2.54 mm
Dimensions: 32.5 × 16.5 mm

Evaluation Boards & Related modules

Complementary WIZnet solutions with diverse interfaces and performance levels