TUSB9261-Q1: Questions about values of internal pull-up register and pull-down register

Orobianco-Italy

Part Number: TUSB9261-Q1

Hello TI,

Could you inform me of the minimum value, typical value, maximum value of each register regarding the pull-down register and pull-up register built into each pin of TUSB9261IPAPRQ1?
I especially want to know about Pin No.4 GRSTz pin preferentially.

I want to know the register value in order to properly control TUSB9261IPAPRQ1 from an external device.

Please fill in the attached file.

Best regards,Orobianco

TUSB9261IPAPRQ1_Internal PullUp_PullDown Resister Value.xlsx

over 7 years ago

0 Brian Quach over 7 years ago

TI__Expert 4325 points

For all pins, pulls strength is 150uA nominal. Pull-up spread is 70uA - 70uA. Pulldown spread is 70uA-250uA.

Regards,

Brian

0 Orobianco-Italy over 7 years ago in reply to Brian Quach

Intellectual 930 points

Hello Brian,

Thank you for your reply.

Can not you reply with internal resistance value (Ω)?
(For both pull-up and pull-down)

Sorry to trouble you.

Best regards,Orobianco

0 Orobianco-Italy over 7 years ago in reply to Orobianco-Italy

Intellectual 930 points

Hello Brian,

>For all pins, pulls strength is 150uA nominal. Pull-up spread is 70uA - 70uA. Pulldown spread is 70uA-250uA.
>Regards,
>Brian

Although the description of Pull Up spread is 70 uA - 70 uA, is this description correct?
As far as confirming your answer, I think that both Pull Up / Pull Down will include the following variations.
Is the following understanding correct?

■ Strength
(min) 70 uA
(typ) 150 uA
(max) 250 uA

Sorry to trouble you.
Best regards,Orobianco

0 Brian Quach over 7 years ago in reply to Orobianco-Italy

TI__Expert 4325 points

Hi Orobianco,

Yes, that is correct. For pull-up the max is 270uA.

Regards,

Brian

0 Orobianco-Italy over 7 years ago in reply to Brian Quach

Intellectual 930 points

Hello Brian,

In summary, the following is the correct answer, is not it?

Pull-up Strength
(min) 70 uA
(typ) 150 uA
(max) 270 uA

Pull-down Strength
(min) 70 uA
(typ) 150 uA
(max) 250 uA

Best regards,Orobianco

0 Brian Quach over 7 years ago in reply to Orobianco-Italy

TI__Expert 4325 points

Orobianco,

Yes, that is correct.

Regards,
Brian

0 Orobianco-Italy over 7 years ago in reply to Brian Quach

Intellectual 930 points

Hello Brian,

Thank you for your reply.

Best regards,Orobianco

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TUSB9261-Q1: Questions about values of internal pull-up register and pull-down register