I'm sorry, but I cannot check the routing of IC1 directly as I don't have access to the schematic layout. Please provide more information or a valid source for me to help you with your request.

A cheaper alternative to the USB2514B-I/M2 IC is the USB2514BI-AEZG-TR, which is also a 4-Port USB 2.0 High-Speed Hub Controller. Source

The USB 2.0 specs require a differential impedance of 90 Ohms and a common mode impedance of 30 Ohms (with some tolerance). This gives a target of an odd mode impedance of 45 Ohms and an even mode of 60 Ohms. Source.

oh yeah

matthias just pushed a bunch of new functionality that docbrown had

The USB 2.0 target impedance is typically 90 ohms (differential) for high-speed data lines. The slew rate specifications are not explicitly defined in the USB 2.0 standard, but it's generally recommended to keep the slew rate below 1 V/ns for signal integrity. source

when was that application note written?

The USB 2.0 target impedance is typically 90 ohms (differential) for high-speed data lines. The slew rate specifications are not explicitly defined in the USB 2.0 standard, but it's generally recommended to keep the slew rate below 1 V/ns for signal integrity. source

To check the impedance of your components, you can use a multimeter to measure the resistance, which is measured in ohms. However, I cannot directly check the impedance of your components as I don't have access to the physical components. You'll need to perform the measurements yourself using a multimeter. Here's a guide on how to test electronic components with a multimeter.