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SN74AHC14: ti logo and top marking

Part Number: SN74AHC14

Dear Texas,

We had purchased  the above said part in Arrow Electronics, Digikey  and Mouser Electronics among that  we had found TI LOGO is varying from each supplier.

Find the above top marking details of SN74AHC14D .

Kindly clarify which TOP Marking belongs to TEXAS Instruments.

Thanks & Regards

S.Kumar

  • Hello,

    We source our parts to multiple manufacturing sites. Both of these devices look like they belong to Texas Instruments.
    Do you see any behavior that doesn't correspond to the specs on the datasheet?

    Thanks!
    - Karan
  • In reply to Karan Kotadia:

    Hi Karan,
    The mentioned IC's (SN74AHC14D) are used in the Graphical LCD driver section.The IC which is bought from Digikey is working fine for Graphical LCD character are observed expected,whereas the IC which is bought from Arrow Electronics is not working and the Graphical LCD shows JUNK Character. Waveform level in both the IC's are similar
    Hence this question rises whether part received from Arrow Electronics in not Genuine.
    Kindly clarify
    Thanks & Regards
    S.Kumar
  • In reply to KUMAR SIVARAMAN:

    Hi S.Kumar,

    I am trying to trace down both the IC's for you. Can you please provide me with an image of the shipping label for both the parts?
    This way I can trace our shipment and confirm with you what is happening with the Arrow Electronics IC.

    Thanks!
    - Karan
  • In reply to Karan Kotadia:

    Arrow Electronics invoice.pdfHi Karan,

    Thanks for your reply and support

    Kindly find the attached Arrow electronics INVOICE and packing slip. For digikey part we had missed the documents.

    Thanks and Regards

    S.Kumar

  • In reply to KUMAR SIVARAMAN:

    Hello S.Kumar,

    I am looking for the TI shipping label that would have been on the shipment. If you can provide me with that I can confirm the validity of the device.

    Thanks!
    -Karan
  • In reply to Karan Kotadia:

     Hello Kiran,

    Sorry for the delay

    Find the attached TI shipment  label details of the part SN74AHC14D

    Thanks & Regards

    S.Kumar

  • In reply to KUMAR SIVARAMAN:

    Hello S.Kumar,

    Thank you for the information. Please allow me till the end of the week to find out and get you an answer.

    Thanks!
    - Karan
  • In reply to Karan Kotadia:

    Hello S.Kumar,

    The parts you have shown in the picture are valid TI parts as confirmed via SAP Mass Trace pull. They are not counterfeit.

    Thanks!
    -Karan
  • In reply to Karan Kotadia:

    Hello Karan,

    Thanks for your reply
    Is the Logo pattern differs from batch to batch?
    Due to this logo variation we are suspecting the part whether it is good or counterfeit.

    Thanks
    S.Kumar
  • In reply to KUMAR SIVARAMAN:

    Hi S.Kumar,

    Yes, the logo pattern can differ between parts based on what manufacturing site they were created in.

    Thanks!
    -Karan

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