XR22404CG28TR-F MaxLinear

XR22404 USB 2.0 4-Port Hub Description FEATURES The XR22404 is a USB 2.0 4-port hub with a Single Transaction USB 2.0 compliant interface Translator (STT). It may be configured for downstream device charging Compatible with Battery Charging specification revision 1.1/1.2 and is compatible with Battery Charging specification revision 1.1/1.2. LED indicators for port, hub or charging The upstream USB interface has an integrated USB 2.0 PHY and activity device controller that is compliant with both hi-speed (480Mbps) and Ganged port power enable full-speed (12Mbps) and downstream PHY supporting hi-speed, full- Global overcurrent sensing speed and low-speed (1.5Mbps) on each of the 4 downstream ports. Single 5V or 3.3V power supply Single 12MHz Crystal The XR22404 provides ganged power control and global overcurrent sensing for the downstream ports. APPLICATIONS USB port expansion The XR22404 may be operated from either 5V or 3.3V. If powered Docking stations from 5V internal regulators provide 3.3V and 1.8V used internally by POS terminals the device. Port activity and overall hub activity indicators provide Factory automation and process controls 2 status outputs for external LEDs. An external I C EEPROM may be Industrial applications used with the XR22404 to configure USB device descriptors. Typical Application USB Host Upstream Phy XR22404 Hub Controller TT Port Routing Downstream Phy x4 Device 1 Device 2 Device 3 Device 4 Figure 1. Typical Application REV1B 1/15XR22404 Absolute Maximum Ratings Operating Conditions Stresses beyond the limits listed below may cause Operating temperature range ........................... 0C to 70C permanent damage to the device. Exposure to any Absolute VCC5 supply voltage ........................................4.4V to 5.5V Maximum Rating condition for extended periods may affect VCC33 supply voltage ......................................3.0V to 3.6V device reliability and lifetime. VCC5 supply voltage ......................................... -0.5V to 6V VCC33 supply voltage ....................................... -0.5V to 4V Input voltage (all pins except USBD+, USBD) ................... -0.3V to 5.5V Input voltage (USBD+ and USBD) ............. -0.3V to 5.75V Junction temperature ................................................. 125C REV1B 2/15