CYUSB3328-88LTXC

Application Specific Microcontrollers Overview

The CYUSB3328-88LTXC is an EZ-USB™ HX3 USB 3.2 Gen 1 hub controller featuring eight downstream ports (four SuperSpeed and four USB 2.0). It supports data rates up to 5 Gbps with backward compatibility for High-Speed, Full-Speed, and Low-Speed devices. The component integrates an ARM® Cortex®-M0 CPU with 16 KB RAM and 32 KB ROM for system configuration and charging control. Electrical specifications include a core voltage range of 1.14 V to 1.26 V and operation within a commercial temperature range of 0°C to +70°C.

Application Specific Microcontrollers Feature Summary

• Eight-port architecture: Four USB 3.0-compliant SuperSpeed ports and four USB 2.0 ports
• Shared Link capability enabling up to eight device connections by splitting SS ports into embedded SS and standard USB 2.0 interfaces
• Ghost charge functionality allowing DS port charging when the upstream host is disconnected
• Integrated ARM® Cortex®-M0 CPU supporting firmware upgrades via I2C or USB vendor commands

Application Specific Microcontrollers Applications

• Standalone hubs
• PC and tablet motherboards
• Docking stations
• Hand-held cradles
• Monitors and digital TVs

Application Specific Microcontrollers Procurement Notes

Verify that the specific ordering suffix matches the required package type and temperature grade. Confirm compliance requirements such as RoHS status against the latest manufacturer documentation before finalizing procurement orders.

Application Specific Microcontrollers Selection Notes

Select this model when eight downstream ports are required, specifically combining SuperSpeed and USB 2.0 connectivity. Ensure the design accommodates the 88-pin QFN package dimensions and provides the necessary external precision resistors for PHY termination calibration.

Application Specific Microcontrollers Part Context

This part belongs to the EZ-USB™ HX3 family of USB 3.2 Gen 1 hub controllers. It is distinguished from other family members like the CYUSB3304 by its expanded port count and support for Shared Link features, making it suitable for complex embedded systems requiring high port density.

Application Specific Microcontrollers Replacement Considerations

Direct substitutes within the same product line include the CYUSB3326-88LTXC, which offers six ports instead of eight. Verify pinout compatibility and feature set alignment, particularly regarding Shared Link support, when considering alternative models.