The GL852G-HHG12 is a USB 2.0 Hub Controller IC manufactured by Genesys Logic. It is designed to extend a single USB port into multiple USB 2.0 ports, enabling the connection of more USB devices to a host system. This controller is commonly used in USB hubs, docking stations, and other applications where multiple USB connections are required.

Applications:

• USB Hubs: Utilized as the main controller chip in external USB 2.0 hubs.
• Docking Stations: Integrated into docking stations to provide additional USB ports for laptops and other devices.
• Embedded Systems: Employed in embedded systems requiring multiple USB connections.
• Peripherals: Used in various computer peripherals like keyboards, mice, and monitors to offer extra USB ports.
• Industrial Applications: Implemented in industrial equipment for connecting USB-based devices.

Features:

• USB 2.0 Compliant: Fully compliant with the USB 2.0 specification, supporting high-speed (480Mbps), full-speed (12Mbps), and low-speed (1.5Mbps) data transfer rates.
• Four Downstream Ports: Provides four downstream USB ports for connecting multiple devices.
• Integrated Transceivers: Incorporates integrated USB transceivers, reducing the need for external components.
• Automatic Transaction Translator (TT): Includes a transaction translator for efficient data transfer between different USB speeds.
• Power Management: Features power management capabilities to minimize power consumption.
• Over-Current Protection: Offers over-current protection to safeguard the hub and connected devices.

Benefits:

• Expanded USB Connectivity: Increases the number of available USB ports.
• High-Speed Data Transfer: Supports high-speed data transfer rates for USB 2.0 devices.
• Power Efficiency: Reduces power consumption through advanced power management features.
• Robust Protection: Protects against electrical damage with over-current protection.
• Simplified Design: Simplifies design and reduces component count due to integrated transceivers.

Technical Specifications:

The GL852G-HHG12 typically operates from a 3.3V power supply. It supports both bus-powered and self-powered modes. It is commonly available in a QFN package. The operating temperature range is generally from 0°C to +70°C. Detailed specifications, including pinout and power consumption, can be found in the Genesys Logic datasheet for the GL852G.