Unused downstream ports of CY7C65x13 and CY7C66x13 full speed USB Hub

Question: What should I do with the unused downstream port pins in CY7C65x13 and CY7C66x13 full speed USB Hub?

 

Answer:

The Dowstream D+ and D- port pins of CY7C65x13 and CY7C66x13 full speed USB Hub needs external pull down 15k resistors if not used or disabled. Please refer to Sample Schematic section of the datasheet where this is illustrated. .