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TUSB1064: Differences from the TDP142

Ryan.Bishop
Expert 3900 points
Part Number: TUSB1064
Other Parts Discussed in Thread: TDP142,

Hello,

I am working on a cost sensitive application where DP1.4 data is being transferred over USB-C. There is no USB 3.0 data.

While I like that the TUSB1064 has some features dedicated for USB-C alt mode applications, our customer is interested in using the TDP142 instead.

The big issue here being the cable orientation detection. In order to keep cost down, they are willing to do discrete cable orientation detection and instead of flipping the signals, just alerting the user via an LED to flip the cable manually. (This is not a frequent plug-unplug application).

Given that detail, is there any reason why the TDP142 couldn't replace the TUSB1064 here?

Thank you!

Regards,
Ryan B.

  • 0
    TI__Guru**** 178076 points

    Ryan

    The TDP142 can be electrically and functionally used in place of the TUSB1064. But does the customer expect it to be fully spec compliant when using it in a Type-C environment?

    The LED solution may be used to prompt the user to switch the cable orientation, but this solution may not be Type-C compliant.

    Using the TDP142 in a Type-C environment may also violate the USB Type-C safe mode requirement. 

    Please also note that when using TDP142 in a Type-C environment, the sink is also fully expected to support both Assignment C and Assignment E.

    Thanks

    David