USB2660I-JZX-03

Specialized Overview

The USB2660I-JZX-03 is a USB 2.0 compliant Hi-Speed hub and multi-format flash media controller combo solution in a 64-pin QFN package. It integrates two exposed downstream USB ports for peripheral expansion and an internally attached third port functioning as a USB Compound Device for flash media reading. The device supports SD, MMC, Memory Stick, and xD-Picture Card formats. It operates on a single 3.3 V supply with internal 1.8 V regulation, features a 60 MHz 8051 microprocessor with 9 KB RAM and 64 KB ROM, and supports industrial temperature ranges from -40°C to +85°C.

Specialized Feature Summary

• Integrates a Hi-Speed USB 2.0 hub with two downstream ports and a dedicated flash media reader interface.
• Supports multiple flash memory standards including Secure Digital, MultiMediaCard, Memory Stick, and xD-Picture Card.
• Includes programmable PortMap, PortSwap, and PHYBoost features for flexible PCB design and signal integrity recovery.
• Configurable via external I2C or SPI ROM for customizable vendor IDs and product strings.

Specialized Applications

• Desktop and mobile PCs
• Printers
• GPS navigation systems
• Media players and viewers
• Consumer A/V equipment

Specialized Procurement Notes

Verify the component matches the specific industrial temperature range (-40°C to +85°C) designated by the 'I' suffix. Confirm the 64-pin QFN lead-free RoHS compliant package dimensions align with your PCB footprint requirements. Ensure that any required licenses for supported media formats, such as xD-Picture Card, are secured prior to deployment.

Specialized Selection Notes

Select this model when both USB hub expansion and multi-format flash media reading capabilities are required in a single chip. Consider the USB2660 variant if only commercial temperature range (0°C to +70°C) is sufficient. Verify compatibility with external configuration memories like I2C EEPROMs or SPI Flash ROMs for custom firmware implementation.

Specialized Part Context

This component belongs to the USB2660/USB2660i series manufactured by Microchip Technology (formerly SMSC). The series combines USB hub functionality with a flash media controller to reduce bill of materials and power consumption. The 'I' suffix specifically denotes the industrial temperature grade, distinguishing it from the commercial grade counterpart.

Specialized Replacement Considerations

Public confirmed substitute part numbers: None identified in verified documentation.

Specialized FAQ

How does the device handle flash media card interfaces?

The dedicated flash media reader is internally attached to a third downstream port as a USB Compound Device, supporting multiplexed or non-multiplexed SD interfaces.

What configuration options are available for the hub ports?

The device offers PortMap for flexible port mapping and disable sequencing, and PortSwap for programmable USB differential-pair pin locations to ease PCB layout.

Can the device support SDIO bridging applications?

Yes, the device includes an additional SD/SDIO port that can be used for card reading or to host wireless applications like WiFi or Bluetooth with custom firmware.