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TUSB1064: USB3.1 Only Mode

Daniels Kurgs
Prodigy 180 points
Part Number: TUSB1064
Other Parts Discussed in Thread: TUSB1042I

Hello TI Team,

 a quick question about the USB 3.1 mode. If TUSB1064 is configured for USB only and no alternate mode is to be entered: Which of these pins are allowed to be left floating without any pull-ups or pulldowns?

DP1-3p, DP1-3n, SBU1-2, AUXp, AUXn, HPDIN?

Thanks in advance,

Daniels

  • 0
    TI__Guru 64326 points

    Hi Daniels,

    All pins listed can be left floating if no DP alternate mode is to be used. You can also refer to TUSB1042I for a Type-C USB3.1 solution (no alternate modes). If you are using the SBU Mux for some other debug interface then 2 Mohm resistor should be installed on SBU1-2.