Description

The AT43311 is a fully compliant USB hub chip with 5 ports, one upstream port and four full/low-speed downstream ports. The AT43311 can be used as a stand alone or can provide a simple and quick method of adding USB ports to an existing device.

Features

• Self-Powered Hub with Bus Power Controller

• Full Compliance with USB Spec Rev 1.0

• 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