TUSB321AI: TUSB321

Manfred Wachter

Part Number: TUSB321AI
Other Parts Discussed in Thread: TUSB321, TUSB320

Tool/software:

We want to use the TUSB321 in DRP (dual role port) mode. Therefore the PORT pin is unconnected. Do I need some resistors on my board on the CC pins or must they only be connected to the USB-C connector? If resistors are needed, are there Pulldowns or PullUps needed ? Which values ?

Thanks

Manfred

3 months ago

+1 Ryan Kitto 3 months ago

TI__Mastermind 37380 points

Hi Manfred,

No pull-up/pull-downs are needed on the CC lines, these can be connected directly to the type-C connector. The TUSB320 will handle pull-up/pull-downs needed for CC communication internally.

Please let me know if you have any other questions.

Thanks,

Ryan

0 Manfred Wachter 3 months ago in reply to Ryan Kitto

Prodigy 165 points

Hi Ryan

Thanks

Manfred

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TUSB321AI: TUSB321