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Original question:

TUSB8020B: connecting upstream to computer error

TUSB8020B: Maximum allowed ground difference between upstream port and PC

Petr Zkrat
Intellectual 410 points
Part Number: TUSB8020B

Hi,

would like to enquire what is the maximum allowed positive and negative ground difference between TUSB8020 upstream port and PC?

Absolute maximum ratings discuss value -0.3V on any pin, however not sure if this is valid also for USB2 pins.

Thanks

Petr