产品特性

• Compliant with USB 2.0 Specification
• Hub Controller IC with Four Downstream Ports
• MultiTRAK Technology Provides One Transaction Translator Per Port
• Default Configuration with Pin Selectable Options
• Flexible OEM Configuration Options
• 64-Pin TQFP RoHS compliant package
• Integrated 1.8V regulator
• Integrated Termination and Pull-Up/Pull-Down Resistors
• Internal Short Circuit Protection of DP and DM Lines
• On-Chip Oscillator Uses Low Cost 24MHz Crystal
• Supports Ganged or Individual Over-Current Protection and Power Control
• 3.3V I/O with 5V tolerance
• Pin-to-pin Compatible with USB20H04
• Customize Vendor ID, Product ID, and Device ID
• Select whether the hub is part of a compound device (When any downstream port is permanently hardwired to a USB peripheral device, the hub is part of a compound device)
• Select the presence of a permanently hardwired USB peripheral device on a port by port basis
• Configure the delay time for filtering the over-current sense inputs
• Configure the delay time for turning on downstream port power
• Configure the polarity of down stream port power control signals
• Indicate the maximum current that the 4-port hub consumes from the USB upstream port
• Indicate the maximum current required for the hub controller
• Select Downstream Ports as Non-Removable Ports
• Select Downstream Ports as Disabled Ports
• Enable/Disable Downstream Port LED Indicators
• Select Downstream Port Power Control and Over-Current Detection on a Ganged or Individual Basis
• Select Downstream Port Power Control Polarity

技术参数