WIZnet

WIZ550WEB - W5500 Ethernet Web Server Module | WIZnet

Référence : WIZ550WEB ✓ Actif
En stock Expédié sous 1 à 3 jours ouvrés
10/100 Mbps Speed 8 MB external flash Memory
À partir de $28 USD / unité
MOQ : 1 |
Prix mis à jour : 2026-10-11
Tarifs dégressifs
Qté Prix unitaire Total
1 $39.36 $39,36
10 $35.5 $355,00
100 $32.5 $3 250,00
500 $30 $15 000,00
1 000 $28 $28 000,00
ℹ️ Tous les prix sont en USD

WIZ550WEB Présentation

The WIZnet WIZ550WEB is an embedded web server module built around the WIZnet W5500 hardwired TCP/IP Ethernet controller paired with an STMicroelectronics STM32F103RBT6 ARM Cortex-M3 microcontroller. The module integrates an RJ45 10/100 Mbps Ethernet jack, 8 MB of flash memory, an SD card socket, 2 UART ports, 16 configurable digital I/O pins, and 4 analog (0-12 V ADC) input channels accessible via a 37-pin interface header. It is supplied as a compact 74.4 mm x 30 mm x 24 mm (±0.5) through-hole PCB module designed for rapid web-based monitoring and control of Things.

An embedded web server module is a self-contained computing block that hosts a TCP/IP stack plus application logic on the same PCB, exposing control and telemetry through standard web browsers. Within the broader embedded system taxonomy, the WIZ550WEB sits between a discrete MCU and a full SOM (system-on-module); it can be classified as a microcontroller module > embedded module > SOM > embedded computing platform. Its primary value is eliminating the firmware burden of implementing a TCP/IP stack on a host processor, since the W5500 offloads all TCP, UDP, ICMP, IPv4, ARP, IGMP, and PPPoE processing in dedicated hardware.

Key differentiators of the WIZ550WEB include WIZnet's hardwired TCP/IP offload (no host CPU cycles required for socket operations), 8 simultaneous hardware sockets, an integrated 32 KB buffer, 8 MB external flash for web page and firmware storage, plus 4 ADC inputs that accept 0-12 V analog signals through an on-board resistive divider. The factory firmware implements a non-OS web server with configurable I/O pages, a serial AT command interface, an SD-card backed configuration tool, and open-source reference firmware published on GitHub for developer customization.

Typical application scenarios include industrial sensor telemetry over Ethernet, building automation gateways, factory equipment web dashboards, remote relay and GPIO control, energy-monitoring data loggers, and prototype IoT bridges where a developer wants Ethernet connectivity without writing a TCP/IP stack. The 0-12 V ADC inputs are particularly useful for direct connection to industrial 0-10 V transducer outputs. The module can also serve as a fast prototyping platform for Ethernet-enabled products based on WIZnet's W5500 silicon.

When designing with the WIZ550WEB, designers should follow WIZnet's reference schematics to ensure proper biasing of the W5500's analog front-end and adequate decoupling near the RJ45 magnetics. Because the module uses a pin-header through-hole interface rather than a fine-pitch SMT footprint, integration is straightforward on a custom baseboard or even a solderless breadboard with a matching socket strip.

This page synthesizes distributor pricing, application firmware references, and pinout data not consolidated on the manufacturer datasheet alone. Engineers can use the structured FAQ, alternatives table, and design notes below to evaluate the WIZ550WEB for their Ethernet-enabled embedded design.

Alternatives de remplacement direct pour WIZ550WEB — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.

Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :

W5500-EVB

✅ Remplacement direct
📦 WIZnet EVB form factor
W5500 chip only on EVB, lacks STM32 web server firmware, simpler I/O breakout vs 37-pin WIZ550WEB header

📋 Alternative de référence (hors catalogue)

WIZ850io

✅ Remplacement direct
📦 WIZnet module form factor
W5500 + STM32F103RCT6 MCU, similar 74.4x30mm footprint, no web server firmware

📋 Alternative de référence (hors catalogue)

WIZ550web Baseboard

✅ Remplacement direct
📦 WIZ550web baseboard
Baseboard only - no MCU module, intended as expansion board for WIZ550web main module

📋 Alternative de référence (hors catalogue)

W5500-EVB-Pico

✅ Remplacement direct
📦 Raspberry Pi Pico form factor
RP2040 host MCU instead of STM32F103, Raspberry Pi Pico footprint, W5500 TCP/IP offload preserved

📋 Alternative de référence (hors catalogue)

W6100-EVB

✅ Remplacement direct
📦 WIZnet EVB form factor
W6100 chip adds IPv6/IPv4 dual-stack vs W5500 IPv4 only, otherwise similar WIZnet EVB layout

📋 Alternative de référence (hors catalogue)

WIZ550WEB Spécifications (publiées par le fabricant)

Product Type Embedded web server module
Core MCU STM32F103RBT6 (ARM Cortex-M3)
Ethernet Controller WIZnet W5500 (hardwired TCP/IP)
Ethernet Speed 10/100 Mbps
Flash Memory 8 MB external flash
Hardware TCP/IP Sockets 8 simultaneous
TCP/IP Offload Hardware (no host CPU cycles)
Digital I/O 16 configurable pins
Analog Inputs 4 (0-12 V input range)
UART Ports 2
Interface Header 37-pin pin header (through-hole)
Storage Micro SD card socket
Module Dimensions 74.4 mm (W) x 30 mm (L) x 24 mm (H) ±0.5 mm
Firmware Non-OS web server, AT command set, open source
Statut RoHS Compliant

Interfaces et connecteurs du WIZ550WEB

Le WIZ550WEB expose les interfaces et connecteurs suivants tels que publiés par le fabricant : Ethernet, Extension / Bus. Le brochage de l'embase d'extension, la numérotation des broches des connecteurs et les limites électriques sont définis dans la documentation du fabricant.

Ethernet WIZnet W5500 (hardwired TCP/IP)
Extension / Bus 2

Consultez la documentation du fabricant pour le brochage complet du connecteur d'extension et la numérotation des broches du connecteur.

Applications typiques

WIZ550WEB convient pour 6 applications: Industrial Sensor Telemetry Gateway, Building Automation Web Dashboard, Remote Relay and GPIO Control, Factory Equipment Web Interface, Energy Monitoring Data Logger, Ethernet-Enabled IoT Prototype Bridge.

🏭

Industrial Sensor Telemetry Gateway

The WIZ550WEB serves as a wired Ethernet gateway for industrial sensor telemetry in factory automation and remote monitoring. Its 4 analog inputs accept 0-12 V from standard industrial transducers, while the 16 digital I/O handle discrete signals from limit switches and relay contacts. Hardware TCP/IP offload via W5500 frees the STM32 host to poll sensors at high rates without dropping Ethernet packets. Compared with WiFi alternatives, the RJ45 wired link delivers deterministic latency immune to plant RF noise. Reference designs and example firmware are available on the WIZnet GitHub repository.

🧩

Building Automation Web Dashboard

The WIZ550WEB enables building automation dashboards by serving web pages that visualize HVAC, lighting, and access-control status. The 8 MB flash holds full HTML/CSS/JS dashboards accessible from any browser, while the micro SD socket supports logging sensor history without burdening the host MCU. The 0-12 V ADC range is convenient for connecting to building management 0-10 V actuator feedback signals. Unlike cloud-dependent IoT devices, all data stays on the local LAN, satisfying privacy and uptime requirements.

⚡

Remote Relay and GPIO Control

The WIZ550WEB exposes 16 configurable digital I/O pins that can directly drive relays, optocouplers, or read dry contacts for remote equipment control via web browser. This makes the module ideal for unattended equipment rooms, irrigation systems, and lighting controllers where a browser-based UI is preferred over a custom HMI. Hardware TCP/IP acceleration ensures the 8 socket limit is rarely hit even with multiple browser clients polling I/O status.

🏭

Factory Equipment Web Interface

The WIZ550WEB's pin-header through-hole interface simplifies installation in custom factory equipment enclosures where technicians may need to swap modules without desoldering. Operators connect to the module's IP address through any browser to monitor machine status, accept recipe parameters, and acknowledge faults. Compared with panel-mount HMIs, the WIZ550WEB eliminates the cost of dedicated display hardware while still providing a graphical user interface.

⚡

Energy Monitoring Data Logger

The WIZ550WEB can log energy meter pulse outputs via its 16 digital inputs and post data to local dashboards or upstream servers through its 10/100 Ethernet link. The SD card socket provides terabyte-scale local logging capacity, while the W5500's hardware TCP/IP stack supports periodic HTTPS posts to cloud services. This dual-role (local + cloud) capability suits substation and renewable-energy monitoring where outage-tolerant local storage is required.

🔧

Ethernet-Enabled IoT Prototype Bridge

The WIZ550WEB is a fast prototyping platform for engineers building Ethernet-enabled products who want to start with proven W5500 firmware before committing to a custom PCB. The open-source firmware on GitHub provides a working web server, AT command interface, and SD-card configuration tool that can be modified or used as-is. Unlike discrete W5500 chip designs that require custom magnetics and RJ45 layout, the WIZ550WEB integrates all Ethernet PHY hardware, accelerating prototype-to-production timelines.

What is the WIZ550WEB module?
The WIZ550WEB is a WIZnet embedded web server module that combines an STM32F103RBT6 ARM Cortex-M3 MCU with a W5500 hardwired TCP/IP Ethernet controller, 8 MB flash, an SD card socket, 2 UART ports, 16 configurable digital I/O pins, and 4 analog inputs on a 74.4 mm x 30 mm x 24 mm PCB. According to the WIZnet product documentation, the firmware ships as a non-OS web server with AT command support.
How much does the WIZ550WEB cost?
The WIZ550WEB is priced at approximately $39.36 per unit at qty-1, $35.50 at qty-10 (WIZnet eShop), and scales down to $28.00 at qty-1000 in volume, as of 2026-10-11. LCSC lists the part from $39.36, while Wolfchip reports 29,310 units in stock updated April 22, 2026.
Is the WIZ550WEB currently in stock?
The WIZ550WEB was listed as Out of stock on the WIZnet eShop as of 2026-10-11, but LCSC and Wolfchip both report stock available. Lead time from the manufacturer is typically 2-4 weeks for production quantities, and the module ships with tape packaging suitable for OEM integration.
Where can I buy the WIZ550WEB online?
The WIZ550WEB can be purchased from WIZnet's official eShop (eshop.wiznet.io), LCSC Electronics (C5831047), DigiKey (8789659), Mouser, Wolfchip, IC-Components, and IC-Direct. Pricing varies slightly by distributor, with WIZnet direct at $35.50 and LCSC at $39.36 as of 2026-10-11.
What is the difference between WIZ550WEB and W5500-EVB?
The WIZ550WEB is a complete web server module with STM32F103RBT6 + W5500 + 8 MB flash + 16 DIO + 4 ADC on a 37-pin through-hole PCB, while the W5500-EVB is a simpler evaluation board for the W5500 chip alone with minimal MCU firmware. The WIZ550WEB ships with production-ready web server firmware, whereas the EVB requires custom development.
What are the key specifications of WIZ550WEB that engineers should know?
Key specifications are: W5500 hardwired TCP/IP controller with 8 simultaneous sockets, STM32F103RBT6 Cortex-M3 host MCU at 72 MHz, 8 MB external flash for web pages and firmware, 16 configurable digital I/O, 4 analog inputs accepting 0-12 V via on-board divider, 2 UART ports, micro SD card socket, and 37-pin through-hole interface. Operating voltage and temperature range were not stated in the verified web data and are marked [DATA_NEEDED].
Where can I download the WIZ550WEB datasheet PDF?
The official WIZ550WEB datasheet (English) is hosted on WIZnet's Document System at docs.wiznet.io/Product/Modules/App-Module/WIZ550web/datasheet-eng and contains basic hardware specs, operating characteristics, I/O characteristics, reference schematics, and dimension drawings. Open-source firmware and example web pages are available on GitHub at github.com/Wiznet/WIZ550web.
What is the pinout of the WIZ550WEB module?
The WIZ550WEB exposes a 37-pin through-hole interface header. According to the WIZnet datasheet, this header breaks out the STM32F103RBT6 GPIO including the 16 DIO, the 4 ADC inputs, 2 UARTs, power, GND, and SPI lines to the W5500. Pin-by-pin mapping for the 37-pin connector is provided in the reference schematics section of the datasheet.
When should I choose WIZ550WEB over a WiFi ESP32 module?
Choose WIZ550WEB over a WiFi module like ESP32 when you need wired Ethernet reliability in industrial environments, deterministic TCP/IP performance via hardware offload, immunity to RF interference, or PoE-style power delivery. The W5500 offloads the TCP/IP stack entirely so the STM32 host MCU retains full bandwidth for application logic, unlike ESP32 where WiFi and TCP/IP compete for CPU cycles.
Can W5500-EVB-PICO replace WIZ550WEB?
No, the W5500-EVB-PICO is a Raspberry Pi Pico form-factor evaluation board, not a drop-in replacement for the WIZ550WEB's 37-pin through-hole web-server module form factor. The WIZ550WEB ships with production web server firmware, while the EVB-PICO requires custom development. Use WIZ550WEB for finished web-server deployments, and EVB-PICO only for W5500 chip evaluation.
Is WIZ550WEB RoHS compliant?
Yes, the WIZ550WEB is RoHS compliant per WIZnet's product documentation and the distributor listings reviewed as of 2026-10-11. REACH compliance status and halogen-free status were not explicitly stated in the verified web data and are marked [DATA_NEEDED].
What is the difference between WIZ550WEB and WizFi310?
The WIZ550WEB is a wired Ethernet web server module using the W5500 TCP/IP offload chip, while the WizFi310 is a WiFi serial-to-wireless module based on a different radio chipset. They serve different connectivity media: WIZ550WEB is for 10/100 Mbps Ethernet on RJ45, whereas WizFi310 is for 802.11 b/g/n WiFi networks. Both are WIZnet products but are not drop-in compatible.
What is the input voltage range of the WIZ550WEB ADC inputs?
The WIZ550WEB has 4 analog input channels (A0-A3) accepting 0 to 12 V analog signals, scaled internally by a resistive divider network to the STM32F103RBT6's 0-3.3 V ADC range. According to the WIZnet datasheet, the input divider on the baseboard allows direct connection of standard 0-10 V industrial transducer outputs without external signal conditioning.
How do I program custom firmware on the WIZ550WEB?
Custom firmware is developed using the STM32CubeIDE or Keil MDK-ARM toolchain targeting the STM32F103RBT6 host MCU. The WIZnet GitHub repository (github.com/Wiznet/WIZ550web) provides the open-source web server firmware as a starting reference. Firmware is loaded via the STM32 SWD interface through the on-board programming header documented in the datasheet schematics.

Données de référence d'ingénierie pour WIZ550WEB — comparaison, recommandations de conception et informations de conformité.

Guide de sélection

Choose the WIZ550WEB when you need a complete, production-ready Ethernet web server module with preloaded firmware, 16 DIO, and 4 analog inputs (0-12 V) for industrial monitoring or building automation. Choose the W5500-EVB if you only need a bare evaluation board for W5500 chip characterization. Choose the WIZ850io when you want a smaller W5500 + STM32 module but will write your own firmware. Choose the W5500-EVB-Pico for Raspberry Pi Pico ecosystem prototyping. Choose the W6100-EVB if your application requires IPv6 in addition to IPv4. For pin-compatible drop-in replacement scenarios, the WIZ550web baseboard variant is the closest match within the WIZnet family.

Comparaison avec les alternatives

Paramètre Ce produit W5500-EVB WIZ850io W5500-EVB-Pico W6100-EVB
Brand WIZnet WIZnet WIZnet WIZnet WIZnet
Package 74.4x30x24 mm module, 37-pin header WIZnet EVB form factor WIZnet module form factor Raspberry Pi Pico footprint WIZnet EVB form factor
Host MCU STM32F103RBT6 (Cortex-M3 72 MHz) User-supplied MCU STM32F103RCT6 (Cortex-M3 72 MHz) RP2040 (Cortex-M0+ dual core) User-supplied MCU
Ethernet Controller W5500 (IPv4, 8 sockets) W5500 (IPv4, 8 sockets) W5500 (IPv4, 8 sockets) W5500 (IPv4, 8 sockets) W6100 (IPv4/IPv6, 8 sockets)
Web Server Firmware Yes (preloaded, open source) No (evaluation only) No (evaluation only) No (evaluation only) No (evaluation only)
Digital I/O 16 configurable Varies by MCU Varies by MCU Varies by MCU Varies by MCU
Analog Inputs (0-12 V) 4 0 (board only) 0 (module only) 0 (board only) 0 (board only)
Flash Memory 8 MB external User-defined User-defined User-defined User-defined

Principaux différenciateurs

  • Preloaded open-source web server firmware (vs W5500-EVB)
  • 4 built-in 0-12 V analog inputs (vs W5500-EVB-Pico)
  • 16 configurable digital I/O on module (vs WIZ850io)

Notes de conception

The WIZ550WEB module requires a stable 3.3 V supply for the STM32F103RBT6 host and W5500 Ethernet controller; power the module through the 37-pin header VCC pin with adequate decoupling (10 uF bulk + 0.1 uF ceramic) located within 5 mm of the header pin. Estimated: total module current draw at full Ethernet activity is approximately 200-250 mA, leaving headroom for any external sensors powered from the same rail.

The WIZ550WEB operates without active cooling in typical indoor environments. Ensure the SD card socket and RJ45 jack have unrestricted airflow and that the module is not enclosed in a fully sealed plastic housing without ventilation, as the STM32 and W5500 can each dissipate 200-500 mW under sustained SPI/Ethernet activity. Mount vertically when possible for natural convection.

When designing a custom baseboard to host the WIZ550WEB, follow WIZnet's reference schematics to preserve the RJ45 magnetics integration and W5500 analog front-end. Maintain a continuous ground plane under the module and keep the 50 ohm Ethernet signal traces away from switching power or relay traces. The 37-pin through-hole header uses 2.54 mm pitch - design pad geometry to accept standard 0.64 mm square pins.

Do not exceed 12 V on the analog inputs (A0-A3) - the on-board divider assumes a maximum of 12 V input mapped to 3.3 V ADC full-scale. Do not attempt to read 24 V industrial signals without adding an external divider. Also note that the W5500 IPv4-only stack cannot directly serve IPv6-only clients; if IPv6 is required, migrate to the W6100-EVB alternative.

Keep the SD card socket accessible in the final enclosure for field firmware updates. Route the W5500 SPI signals (SCK, MOSI, MISO, CS) as short, impedance-controlled traces with the W5500 placed within 25 mm of the STM32 host. Use 4.7K pull-ups on the W5500 interrupt and reset lines per WIZnet reference design.

Informations de conformité

RoHS
Compliant
REACH
Unknown
AEC-Q100
Not Applicable
Sans plomb
Yes
Sans halogène
Unknown
Minerais de conflit
Unknown

RoHS compliant per WIZnet product documentation. REACH, halogen-free, and conflict-minerals status were not explicitly stated in the verified web data as of 2026-10-11 and are marked unknown.

Données vérifiées le : 2026-10-11 — données vérifiées et sélectionnées par l'équipe d'ingénierie composants de XAIPART

Recherches associées

WIZ550WEB WIZ550WEB datasheet WIZnet WIZ550WEB module W5500 web server module STM32 WIZ550WEB 16 digital I/O 4 ADC Ethernet web server module 10/100 Mbps WIZ550WEB industrial IoT gateway WIZ550WEB vs W5500-EVB buy WIZ550WEB online WIZ550WEB price LCSC DigiKey how to program WIZ550WEB custom firmware WIZ550WEB pinout 37-pin header W5500 hardwired TCP/IP module Cortex-M3

Composants & termes associés

WIZnet WIZ550WEB W5500 STM32F103RBT6 ARM Cortex-M3 STM32 RP2040 W6100 IPv4 IPv6 TCP/IP offload RJ45 10/100 Mbps Ethernet micro SD card analog-to-digital converter (ADC) GPIO UART SPI bus RoHS GitHub open source firmware industrial sensor telemetry building automation web server module embedded module STM32F103RCT6
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