USB2640I-HZH-02

Specialized Overview

The USB2640I-HZH-02 is a USB 2.0 compliant Hi-Speed hub controller with an integrated mass storage class peripheral controller for flash media. It features three downstream ports: one dedicated to an internally connected ultra-fast flash media reader/writer and two exposed ports for external peripherals. The device supports SD, MMC, Memory Stick, and xD-Picture Card formats. It includes a single-chip solution with 9 KB RAM, 64 KB on-chip ROM, and an 8051 microprocessor. Operating at up to 60 MHz, it handles Full-Speed and Low-Speed peripherals via its transaction translator. The component operates within an industrial temperature range of -40°C to +85°C and is housed in a 48-pin QFN package.

Specialized Feature Summary

• Integrated flash media reader/writer supporting multiple card formats including SD, MMC, Memory Stick, and xD-Picture Card.
• Programmable PortMap and PortSwap features allow flexible port mapping and differential-pair pin alignment for simplified PCB design.
• Supports OEM configuration via external I2C or SPI ROM for customizable vendor IDs, product IDs, and firmware updates.
• Includes PHYBoost technology with four programmable drive strength levels to recover signal integrity.

Specialized Applications

• Desktop and mobile PCs
• Printers
• GPS navigation systems
• Media Players/Viewers
• Industrial products

Specialized Procurement Notes

Verify the specific ordering suffix against the manufacturer's current documentation to ensure correct package type and temperature rating. Confirm that the required external components, such as the 24 MHz crystal and filter capacitors, are included in the bill of materials. Check for any applicable errata sheets related to silicon revisions before finalizing procurement plans.

Specialized Selection Notes

Select this component when a combined USB hub and flash media controller is required for embedded solutions. Ensure the application utilizes the supported flash media types, noting that xD support is specific to the USB2640i variant. Verify power requirements, as the device supports both bus-powered and self-powered configurations with individual port control options.

Specialized Part Context

This part belongs to the USB2640i/USB2641i family from Microchip Technology. The USB2640i specifically supports xD-Picture Cards, whereas the USB2641i does not. Both variants share identical hardware architectures and pinouts but differ in supported media formats. The 'HZH' suffix typically denotes the 48-pin QFN package and industrial temperature range.

Specialized Replacement Considerations

The USB2641I is a compatible alternative if xD-Picture Card support is not required. Other Microchip USB hub controllers may serve as replacements but require verification of pin compatibility and feature sets.

Specialized FAQ

Does the USB2640I support xD-Picture Cards?

Yes, the USB2640I supports xD-Picture Cards. This feature is not available in the USB2641I variant.

What is the maximum operating frequency of the internal processor?

The internal 8051 microprocessor supports operation at 30 MHz or 60 MHz, depending on the SPI interface configuration.

How is the device configured by the OEM?

Configuration is achieved via an external I2C EEPROM or an external SPI Flash ROM, allowing customization of vendor ID, product ID, and firmware.