CYUSB2304-68LTXI

Application Specific Microcontrollers Overview

The CYUSB2304-68LTXI is a USB 2.0 hub controller from the EZ-USB™ HX3 family, compliant with USB 2.0 specifications. It features four downstream ports supporting High-Speed (480 Mbps), Full-Speed (12 Mbps), and Low-Speed (1.5 Mbps) data rates. The device integrates an ARM® Cortex®-M0 CPU with 16 KB RAM and 32 KB ROM for system configuration and charging control. Key proprietary features include Shared Link™ for embedded applications and Ghost Charge™ for host-independent device charging. It supports BC v1.2 compliance and ACA-Dock functionality, packaged in a 68-pin QFN.

Application Specific Microcontrollers Feature Summary

• Four USB 2.0 downstream ports with backward compatibility to HS, FS, and LS speeds
• Integrated ARM® Cortex®-M0 CPU (16 KB RAM, 32 KB ROM) for firmware and configuration
• Shared Link™ feature enabling simultaneous connection of embedded SS and removable USB 2.0 devices
• Ghost Charge™ capability allowing device charging without upstream host connection

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 specific ordering suffix '68LTXI' against official Infineon documentation to confirm package type (68-pin QFN) and temperature grade. Ensure the component matches the required USB 2.0 specification rather than USB 3.0 variants within the HX3 family.

Application Specific Microcontrollers Selection Notes

Select this model when a four-port USB 2.0 hub is required with integrated charging capabilities like BC v1.2 and Apple charging support. Consider the Shared Link feature if the design requires splitting a port for embedded SuperSpeed and standard USB 2.0 connections simultaneously.

Application Specific Microcontrollers Part Context

This part belongs to the EZ-USB™ HX3 family, which includes both USB 3.0 (CYUSB33xx) and USB 2.0 (CYUSB23xx) controllers. While sharing the same CPU architecture and packaging options, the CYUSB2304 lacks SuperSpeed PHYs compared to its CYUSB3304 counterpart, focusing solely on USB 2.0 signaling.

Application Specific Microcontrollers Replacement Considerations

Direct replacements within the same family include the CYUSB2302-68LTXI for a two-port configuration. For USB 3.0 requirements, the CYUSB3304-68LTXI offers similar pinouts but adds SuperSpeed capabilities.