CG7851AA

Controllers Overview

The CG7851AA is a high-speed USB hub controller manufactured by Cypress Semiconductor Corp. It integrates a high-speed USB 2.0 hub with four downstream ports and one upstream port, designed for compact applications. The component operates within a standard voltage range and supports data transfer rates up to 480 Mbps. It is housed in a 56-pin QFN package, suitable for surface-mount assembly. This controller facilitates connectivity expansion for host devices, enabling the connection of multiple peripheral devices through a single USB interface.

Controllers Feature Summary

• Integrates a high-speed USB 2.0 hub with four downstream ports
• Supports data transfer rates up to 480 Mbps
• Designed for compact surface-mount applications

Controllers Applications

• USB hub expansion modules
• Peripheral connectivity controllers
• Compact electronic device interfaces

Controllers Procurement Notes

Verify the exact package type and pinout configuration against the official datasheet before integration. Confirm lifecycle status as obsolete or end-of-life when planning long-term production. Ensure compatibility with existing USB host controllers and power management requirements. Check for any specific firmware or driver dependencies required for operation.

Controllers Selection Notes

Select this component for designs requiring a compact, integrated solution for USB hub functionality. Consider the 56QFN package constraints for PCB layout and thermal management. Evaluate power consumption characteristics against system battery or supply limitations. Verify that the four-port capacity meets the target application's peripheral connection needs.

Controllers Part Context

This part belongs to the Cypress Semiconductor interface IC category, specifically within the controller subcategory. It is part of the company's portfolio of USB connectivity solutions. Cypress Semiconductor was acquired by Infineon Technologies, which continues to support legacy product lines. The component represents a specialized interface solution for expanding USB connectivity in embedded systems.

Controllers Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the component's obsolete status, alternative solutions may require redesigning the USB hub circuitry using currently supported controllers from Infineon or other manufacturers.