CY7C65621-56LTXCT

Controllers Overview

The CY7C65621-56LTXCT is a USB 2.0 hub controller from Infineon Technologies, part of the EZ-USB HX2LP Lite family. It supports up to four downstream ports with a single transaction translator and operates at high-speed data rates of 480 Mb/s. The device functions in bus-powered or self-powered modes using a single 3.3 V supply (3.15 V to 3.45 V range). It integrates an internal regulator, upstream pull-up resistor, and downstream termination resistors within a space-saving 56-pin QFN package.

Controllers Feature Summary

• Integrates USB Serial Interface Engine, Hub Control logic, and Transaction Translator for comprehensive hub functionality
• Supports configurable port power switching and overcurrent detection via external switches
• Includes integrated dual-color LED drivers for automatic or manual port status indication
• Enables system configuration through external SPI EEPROM storage

Controllers Applications

• Standalone USB hubs
• Motherboard expansion hubs
• External personal storage drive enclosures
• Advanced port replicators and docking stations

Controllers Procurement Notes

Verify component authenticity by cross-referencing the manufacturer marking with official datasheet specifications. Confirm the specific ordering suffix matches the required package and temperature grade. Ensure compatibility with existing design infrastructure before procurement.

Controllers Selection Notes

Select this model for applications requiring two active downstream ports sharing a single transaction translator. Verify that the host system supports USB 2.0 High Speed protocols. Ensure the design accommodates the necessary external components for power switching and EEPROM configuration.

Controllers Part Context

This component belongs to the EZ-USB HX2LP Lite family, designed as a low-power alternative to previous generations. It maintains fit, form, and function compatibility with the CY7C65640 series while offering reduced power consumption and simplified bill of materials through integrated passive components.

Controllers Replacement Considerations

The CY7C65631 serves as a functional substitute within the same family, providing four downstream ports instead of two. Both devices share identical pinouts and operational characteristics.