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Are SN65LVPE502A/B and SN65LVPE512 compatibe device when used as device side ?

alpha
Expert 2530 points
Other Parts Discussed in Thread: SN65LVPE502A, SN65LVPE512

To whom it may concern

Our customer has question whether SN65LVPE502A/B and SN65LVPE512 are pin compatible device when SN65LVPE512 is used as device side.

Because between SN65LVPE502A/B and SN65LVPE512 changes pin name as following.

  Host -> Controller
  Device -> Connector

SN65LVPE502A/B datasheet describe pin description as following.

Pins labeled "Host" must be connect to the USB3.0 host side.
Pins labeled "Device" must be connect to the USB3.0 device side.

SN65LVPE512 datasheet describe pin description as following.

Pins labeled "Controller" must connect to the USB3.0 host or device controllr.
Pins labeled "Connector" must connect to the USB3.0 conector.

Since our customer's condition is device side , when "SN65LVPE502A/B" is used

  Host : Connector (Micro-B)
  Device : USB Controller

Like the above is connected.

But when "SN65LVPE512" is used

  Controller : USB Controller
  Connector : Connector (Micro-B)

Should like the above be connected?

If the above is correct and SN65LVPE512 is used as device , they think these devices are not compatible.

Is our customer understanding correct?

Your reply is very important for our customer.
I hope your strong support.

Thanks and best regards.

  • 0
    TI__Mastermind 23815 points
    Hi Michiaki,

    SN65LVPE502A and SN65LVPE502B have different pin names, SN65LVPE502B is our recommended device for device side applications.
    You can use SN65LVPE512 as SN65LVPE502A in device applications but it is known this approach have issues with some hosts.
    So, if using SN65LVPE512 on device applications, please connect controller pins to receiver device and connector pins to connector.

    Regards
  • 0 in reply to Moises Garcia
    Expert 2530 points

    Hello Moises
    Thank you for your prompt reply.

    Regarding connection on device application , if our customer would be followed your answer , wouldn't known issue be occured?

    And could you please tell the detail of known issue?
    Because our customer's condition is using SN65LVPE512 as SN65LVPE502A.

    Your reply would be appreciated.
    Thanks and best regards.

    Michiaki

  • 0 in reply to alpha
    TI__Mastermind 23815 points
    Hi Michiaki,

    As long as you connect controller pins to receiver device and connector pins to connector, the issues should not appear. This is explained in datasheet page 11, Controller- and Connector-side Pins.

    This is more an interoperability issue from the host side, some hosts seem to enter a power save mode that doesn't work fine with the power save mode of LVPE502A,.LVPE502B, LVPE512 This issue is not present in our host devices.
    This issue is solved connecting the host side to host/device and connecting device side to connector.

    Regards