TUSB2077A: Default state of /PWRONx outputs

Paul Derderian

Part Number: TUSB2077A

Hello, during reset and initialization, is the default state for /PWRONx outputs for the TUSB2077A high, low, or high-z? I assumed it was high signal since /PWRONx outputs are an active low output but this information was not in the datasheet.

Thanks

over 6 years ago

0 Brian Zhou over 6 years ago

TI__Guru*** 145355 points

we will look at and will reply soon

0 JMMN over 6 years ago in reply to Brian Zhou

TI__Guru 60870 points

Hi Paul,

Yes, the TUSB2077A pwronz outputs default to "off' or active high. During power on reset there may be a short time period where the pwronz outputs are low while the hub is in an undefined state.

Regards,
JMMN

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TUSB2077A: Default state of /PWRONx outputs