AT43310

Features:

• Bus Powered Hub Controller
• Full Compliance with USB Spec Rev 1
• Full Speed USB Host Interface
• Four Downstream Ports
• Downstream Support for Full Speed and Low Speed Transfer Rates
• Continual Monitoring of Port by System Host
• Individual Port Power Control
• USB Connection Status Indicators
• 6 MHz Oscillator with On-Chip PLL


Pinout




Specifications

Operating Temperature......................-55°C to +125°C Storage Temperature.........................-65°C to +150°C Voltage on any pin with Respect to Ground .................................... -0.5V to 7.0V Maximum Operating Voltage ....................................6.6V DC Output Current .................................................16 mA

Description

The AT43310 is a fully compliant USB hub chip with 5 ports, one upstream port and four full/low-speed downstream ports. The AT43310 can be used as a stand alone or can provide a simple and quick method of adding USB ports to an existing device.

As a repeater, the AT43310 provides upstream connectivity between the selected function and the host. Connectivity involves setting up and tearing down connections, handling bus faults, recovering from bus faults and detecting downstream device connections and disconnections.

The AT43310 may also act as a hub controller managing the hub operations and recording the status of the hub, bus transactions, and downstream ports. In this mode, the AT43310 tracks and generates the bus enumeration, provides configuration information to the host, provides individual port status to the host, and controls the port operation based on host commands.