RPI-HUB-MODULE

Overview

The RPI-HUB-MODULE is a USB interface expansion board designed for Raspberry Pi computers, utilizing the FT2232H dual-port bridge chip and GL850G USB hub controller. It provides up to four downstream USB ports: two via a dual USB connector and one via DIL connector pins, with an additional port available through the hub architecture. The module supports USB 2.0 High-Speed (480Mb/s) signaling and offers flexible interfacing capabilities including UART, MPSSE, SPI, I2C, JTAG, and GPIO functions. It serves as both a development tool for rapid prototyping and a functional hub device.

Feature Summary

• Integrates FT2232H dual-port bridge chip for multi-protocol interface conversion
• Expands host connectivity with up to four downstream USB ports
• Supports UART, SPI, I2C, JTAG, and GPIO protocols via MPSSE engine
• Includes GL850G hub controller with individual/gang power management

Applications

• Raspberry Pi interface expansion for embedded projects
• Development and evaluation of USB-to-serial/parallel designs
• Prototyping USB hub implementations with multiple interface types

Procurement Notes

Verify component authenticity by checking the manufacturer's official documentation against the part number FT_000700. Ensure compatibility with specific Raspberry Pi models before integration. Confirm that the GL850G hub controller and FT2232H bridge IC match the required specifications for your design. Review the datasheet for voltage levels and pin configurations to avoid electrical mismatches during assembly.

Selection Notes

Select this module when simultaneous expansion of USB ports and serial/parallel interfaces is required on a Raspberry Pi platform. It is suitable for applications needing JTAG debugging or multiple UART/SPI connections alongside standard USB peripherals. Consider the physical form factor as a plug-in extension. Evaluate if the fixed protocol support meets project needs without requiring custom firmware development.

Part Context

This module belongs to FTDI’s range of development tools and interface solutions, specifically targeting the maker and embedded engineering communities. It leverages FTDI’s fifth-generation USB devices to provide robust connectivity. The product bridges the gap between simple USB hubs and complex interface converters, offering a consolidated solution for developers working with single-board computers like the Raspberry Pi.

Replacement Considerations

No direct public substitute part numbers are documented for this specific integrated module configuration. Alternative approaches involve using separate FT2232H chips and GL850G controllers on custom PCBs. Developers may also consider other FTDI mini modules like the FT4232H MINI MODULE for different channel counts, though these lack the specific Raspberry Pi form factor and integrated hub architecture.