CYUSB3328-88LTXIT

Application Specific Microcontrollers Overview

The CYUSB3328-88LTXIT is an EZ-USB™ HX3 USB 3.2 Gen 1 hub controller from Infineon Technologies, compliant with the USB 3.0 specification revision 1.0. It supports SuperSpeed (5 Gbps), High-Speed (480 Mbps), Full-Speed (12 Mbps), and Low-Speed (1.5 Mbps) on all ports. The device features eight downstream ports: four dedicated SuperSpeed ports and four shared link ports that can simultaneously connect to embedded SS devices and removable USB 2.0 devices. It includes an integrated ARM Cortex-M0 CPU, ghost charging capabilities, ACA-Dock support, and I2C configuration interfaces.

Application Specific Microcontrollers Feature Summary

• Eight downstream ports: four SuperSpeed and four shared link ports for up to eight total device connections
• Integrated ARM Cortex-M0 CPU with 16 KB RAM and 32 KB ROM for system configuration and firmware upgrade
• Supports USB Battery Charging v1.2, including ghost charge and ACA-Dock modes
• Pin-strap configuration for VID, port count, and power switch settings

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 the suffix 'IT' against official documentation to confirm industrial temperature range (-40°C to +85°C) and packaging details. Ensure compatibility with required I2C EEPROM or pin-strap configuration methods for VID and PID assignment.

Application Specific Microcontrollers Selection Notes

Select this model when eight downstream connections are required, utilizing the shared link feature to split SuperSpeed ports into embedded SS and standard USB 2.0 connections. Confirm the need for ACA-Dock support and BC v1.2 compliance before choosing over models without these features.

Application Specific Microcontrollers Part Context

Part of the EZ-USB™ HX3 family, which provides USB 3.2 Gen 1 hub functionality. The CYUSB3328 variant specifically offers the highest port count within the HX3 series, supporting both USB 3.0 and USB 2.0 speeds with advanced charging and embedded application features.

Application Specific Microcontrollers Replacement Considerations

CYUSB3324-88LTXI: Offers four SuperSpeed ports but lacks shared link capability. CYUSB3326-88LTXI: Provides six downstream ports (two USB 3.0, two SS, two USB 2.0). Verify package compatibility (88-pin QFN) and electrical specifications.