CYUSB3326-BVXI

Application Specific Microcontrollers Overview

The CYUSB3326-BVXI is a USB 3.2 Gen 1 hub controller compliant with the USB 3.0 specification revision 1.0, supporting data rates up to 5 Gbps on all ports. It features six downstream ports: two SuperSpeed (SS) ports and four USB 2.0 ports. The device integrates an ARM Cortex-M0 CPU with 16 KB RAM and 32 KB ROM for system configuration and firmware management. It supports shared link functionality, allowing each SS port to simultaneously connect to an embedded SS device and a removable USB 2.0 device. Key features include ghost charging, ACA-Dock support, and vendor-command capabilities for USB-to-I2C bridging.

Application Specific Microcontrollers Feature Summary

• Six Downstream Ports: Two USB 3.0-compliant SS ports and four USB 2.0 ports, all supporting backward compatibility with HS, FS, and LS speeds.
• Shared Link Capability: Enables splitting an SS port into an embedded SS connection and a standard USB 2.0 port, supporting up to eight total device connections.
• Integrated ARM Cortex-M0 CPU: Provides 16 KB RAM and 32 KB ROM for GPIO configuration, battery charging control, and firmware upgrades via I2C or USB.
• Enhanced Charging Support: Includes ghost charging for DS ports when the upstream host is disconnected and compliance with USB Battery Charging v1.2 specifications.

Application Specific Microcontrollers Applications

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

Application Specific Microcontrollers Procurement Notes

Verify the specific suffix 'BVXI' against official Infineon documentation to confirm package type and temperature grade. Ensure the ordering code matches the required pinout and electrical characteristics for the target application design.

Application Specific Microcontrollers Selection Notes

Select this component for designs requiring more than four downstream connections using a single hub controller. The shared link feature is critical for embedded applications needing simultaneous SS and USB 2.0 connectivity on the same physical port.

Application Specific Microcontrollers Part Context

This part belongs to the EZ-USB HX3 family of USB 3.2 Gen 1 hub controllers. Unlike the CYUSB3304 which offers four SS ports, the CYUSB3326 provides a mixed configuration of two SS and four USB 2.0 ports to accommodate diverse peripheral requirements.

Application Specific Microcontrollers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.