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pin1 orientation on underside of physical component package, mechanical package feature question

Mark Vanasse
Prodigy 10 points


What is the actual material of the small pin one square, underside orientation marking on the package near pin 1 for part number SNJ54LVCH244AFK. Is that paint? an indentation?, or is it a conductive material , is it common to pin1? or is it GND? Does it need to be soldered to the PCB? Thanks, Part number was unrecognized in this forum requirement for Part Number.

  • 0
    TI__Guru 62930 points

    Mark,

    I need to request access to the package drawings to answer this conclusively.

    I will reply back as soon as I confirm.

    Regards,

    Wade

  • 0 in reply to Wade Vonbergen
    TI__Guru 62930 points

    Mark,

    After further review, it appears that the package outline drawing that is included in the datasheet is somewhat generic.

    The square dot represents a pin one indicator.  However, it physically does not represent the package.

    Here is comparison of package outline and package drawing:

    To accommodate the generic pinout drawing to multiple package variation, the following statement is being considered to be added to the outline drawing.

    Pin-1 may be designated by an elongated pad or separate indicator.

    If this answers your question, please click "This Resolved My Issue"
    Regards,
    Wade