AT43310

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 USB Hub AT43310 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. Pin Configurations SOIC/DIP/Cerdip PWR2 PWR3 PWR4 VCC5 VSS OSC1 OSC2 LFT VCCA OVL4 OVL3 OVL2 OVL1 VREF GND STAT4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 PWR1 DP4 DM4 DP3 DM3 GND D...