TUSB2E221: CROSS pin is not there only in QFN package

Koyo Asaishi

Part Number: TUSB2E221

Tool/software:

Hello team,

DSBGA package of TUSB2E221 have CROSS pin but QFN doesn't have. Is there a reason? QFN have two GND pins and I think it is capable to assign CROSS to QFN as well.

Best regards
Koyo

over 1 year ago

0 Ryan Kitto over 1 year ago

TI__Guru 56135 points

Hi Koyo.

This pin is for the 2:2 crossbar mux which is only present in the DSBGA package for the TUSB2E221. This mux is not present in the QFN package:

Please let me me know if you have any other questions.

Thanks,

Ryan

0 Koyo Asaishi over 1 year ago in reply to Ryan Kitto

TI__Intellectual 2280 points

My question is why the feature is present only DSBGA?

+1 Ryan Kitto over 1 year ago in reply to Koyo Asaishi

TI__Guru 56135 points

Hi Koyo,

This is because the DSBGA package has the pin count to support this functionality, while the QFN package does not.

Thanks,

Ryan

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TUSB2E221: CROSS pin is not there only in QFN package