SN74HC04: 82AFCNF?

John Stonecypher

Part Number: SN74HC04

Tool/software:

I'm trying to identify an HC04 with top marking 82AFCNF. It's most likely obsolete. I understand HC04's are pretty common but I need the exact original part number so i can find the closest match.

1 month ago

0 Owen Westfall 1 month ago

TI__Genius 12881 points

Hi John,

These parts are not obsolete, and still driving strong.

It looks to me that this is the D package so the orderable number of SN74HC04DR should be fine for you.

Regards,

Owen

0 John Stonecypher 1 month ago

Prodigy 15 points

To be clear, I don't know if SN74HC04DR is the right part number at all. The system required that I choose an existing P/N for the heading. All I know for sure is what is in the photo. I haven't seen those part markings on any of the datasheets I've found.

0 Clemens Ladisch 1 month ago in reply to John Stonecypher

Guru 316780 points

"HC04" is the correct marking. Ignore the other line.

0 jack zhouu 1 month ago

Prodigy 191 points

SN74HC04DR is the correct model. I can send you a picture if needed.

0 John Stonecypher 1 month ago in reply to jack zhouu

Prodigy 15 points

That would probably help. Does it have the same part markings? It would be really nice if I could find a datasheet that confirms the markings. I'm really looking for the exact original part data. We're reverse engineering, so I don't want to be too casual just because it's a generic device. I'd like to be able to confirm as many electrical ratings etc. as possible.

0 Clemens Ladisch 1 month ago in reply to John Stonecypher

Guru 316780 points

The first line includes date code and lot/trace code information, so it will change.

The guaranteed electrical characteristics of HC devices have not changed.

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SN74HC04: 82AFCNF?