WIZ550WEB

Overview

The WIZ550web is an embedded Ethernet development board featuring the STM32F103RCT6 microcontroller and W5500 TCP/IP controller. It operates on a standard digital supply voltage of 3.3V with a maximum limit of 3.6V. The analog power domain supports 2.0V to 3.6V, while the backup voltage range is 0.8V to 3.6V. I/O pins tolerate up to VDD+0.3V, and BOOT0 accepts up to 5.5V. The unit includes integrated RJ45 connectivity with a transformer, external flash memory, and EEPROM for persistent storage.

Feature Summary

• Integrates STM32F103RCT6 MCU with W5500 hardwired TCP/IP controller
• Includes onboard AT45DB081D flash and 24AA64T-I/OT EEPROM
• Features integrated RJ45 connector with built-in transformer
• Provides dual 2.54mm pin headers for GPIO and peripheral access

Applications

• Embedded web server implementations
• IoT gateway prototyping
• Industrial network interface modules
• Educational evaluation of Ethernet protocols

Procurement Notes

Verify the specific revision level against the reference schematic version 1.1 dated December 17, 2015. Confirm that the STM32F103RCT6 and W5500 components match the intended firmware compatibility. Ensure the physical dimensions of 74.95mm by 30mm fit the target enclosure. Check that the 3.3V power requirements align with the system design constraints.

Selection Notes

Select this module when a complete hardware solution for Ethernet connectivity is required without designing custom PHY circuits. It is suitable for applications needing immediate web-server capabilities or TCP/IP stack validation. The inclusion of onboard memory simplifies data logging and configuration storage compared to bare controller solutions.

Part Context

This evaluation board serves as a hardware platform for the W5500 Ethernet controller and STM32 microcontroller series. It allows developers to test network performance and application logic before migrating to custom PCB designs. The board consolidates essential peripherals like flash, EEPROM, and the RJ45 jack into a single form factor.

Replacement Considerations

No direct public substitutes are documented in the provided source material. Alternative solutions would require evaluating different MCU and PHY combinations separately.

FAQ

What is the maximum input voltage for the BOOT0 pin?

The BOOT0 pin can accept a maximum voltage of 5.5V.

Does the board include an integrated transformer?

Yes, the WIZ550web features an RJ45 connector with an integrated transformer (J1B1211CCD).

What are the operating voltage limits for the analog domain?

The analog operation voltage ranges from 2.0V to 3.6V when the ADC is not used, and 2.4V to 3.6V when the ADC is active.