SN74LVC86A: different bottom marking from different suppliers

Dmitry Zaharevich

Part Number: SN74LVC86A

Dear Sir/Madam,

we have a similar problem with bottom marking as described in the forum:

https://e2e.ti.com/support/amplifiers-group/amplifiers/f/amplifiers-forum/904494/tlc2262-different-bottom-marking-from-different-suppliers

but for SN74LVC86AD

and for SN74LVC10AD

please confirm the admissibility of such bottom markings for these products

and, if possible, provide a link to the document on the decoding of the bottom marking

Thank you very much

over 4 years ago

0 Emrys Maier over 4 years ago

TI__Guru* 97066 points

Hello,

We don't define the bottom-side markings for the device. Please use the topside markings and original packaging for identification.

It's very common for devices to come from multiple sources -- TI uses a multi-source system for many of our device to meet volume requirements. Different manufacturing sites will have very minor variations between them, including bottom-side markings. These will not impact the electrical operation of the devices.

If you believe you have received counterfeit devices, I can put you in touch with our counterfeit team.

0 Dmitry Zaharevich over 4 years ago in reply to Emrys Maier

Prodigy 10 points

Hello, thanks for the reply, please confirm these bottom markings are legitimate or not

0 Emrys Maier over 4 years ago in reply to Dmitry Zaharevich

TI__Guru* 97066 points

I'll contact our counterfeit team and ask them to contact you.

0 Dmitry Zaharevich over 4 years ago in reply to Emrys Maier

Prodigy 10 points

Hello! Please let me know when to expect a response from your counterfeit team, thanks

0 Emrys Maier over 4 years ago in reply to Dmitry Zaharevich

TI__Guru* 97066 points

Thanks for the reminder. My apologies, I had drafted an email but never actually sent it. I have now sent my email to them and I would expect their response within less than 24 hours.

0 Dmitry Zaharevich over 4 years ago in reply to Emrys Maier

Prodigy 10 points

Hello! We still have not received an answer, please let me know when to expect a response from your counterfeit team, thanks

0 Emrys Maier over 4 years ago in reply to Dmitry Zaharevich

TI__Guru* 97066 points

I also have not received a response from them. I'm afraid there's nothing else I can do.

Is there some reason the customer thinks these are not real TI parts? Have they contacted their distributor?

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SN74LVC86A: different bottom marking from different suppliers