Features

• Compliant with USB 2.0 Specification
• Hub controller IC with two upstream ports and four downstream ports
• MultiTRAK™ technology provides one transaction translator per port
• Default configuration with pin selectable options
• Four flexible downstream port switching modes
• Flexible OEM configuration options
• 56-pin QFN 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 individual over-current protection and power control
• 3.3V I/O with 5V tolerance
• Customize vendor ID, product ID, device ID, and product string
• Port switching modes and host ownership of downstream ports
• 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)
• Programmable LEDs to support standard green/amber port status or port speed (HS/FS/LS)
• 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

Parameter