The UPD720114K9 is a USB 2.0 Hub Controller manufactured by Renesas Electronics America. It is designed to provide multiple USB ports from a single USB connection. This hub controller supports high-speed (480Mbps), full-speed (12Mbps), and low-speed (1.5Mbps) USB devices. It's commonly used in applications where multiple USB devices need to be connected to a single host port.

Applications

• USB Hubs: Creating standalone USB hubs with multiple ports.
• Docking Stations: Providing multiple USB ports in laptop docking stations.
• Embedded Systems: Adding USB connectivity to embedded systems with limited ports.
• Computer Peripherals: Integrating USB hub functionality into monitors, keyboards, and other peripherals.
• Automotive Applications: Providing USB ports in in-car entertainment systems.

Features

• USB 2.0 Compliant: Supports high-speed (480Mbps), full-speed (12Mbps), and low-speed (1.5Mbps) USB devices.
• Multiple Downstream Ports: Provides multiple USB ports for connecting devices.
• Integrated Transaction Translator: Enables communication between high-speed and low/full-speed devices.
• Over-Current Protection: Protects against over-current conditions on the USB ports.
• Bus-Powered and Self-Powered Modes: Supports both bus-powered and self-powered operation.

Benefits

• Increased USB Connectivity: Allows multiple USB devices to be connected to a single host port.
• Improved System Performance: Supports high-speed USB 2.0 data transfer rates.
• Enhanced System Reliability: Over-current protection prevents damage to connected devices.
• Flexible Power Options: Supports both bus-powered and self-powered modes.
• Simplified Design: Reduces the complexity of USB hub designs.

Additional Details

The UPD720114K9 typically requires minimal external components for operation. The number of downstream ports can vary depending on the specific configuration. It complies with USB 2.0 specifications. The device may be available in different package options. The power consumption varies based on the number of connected devices and the operating mode. The specific details on power management, clocking requirements and configuration options are usually found in the device datasheet provided by Renesas.