Warning: faulty EPROMs on ebay, alieexpress, etc.

[AlxUnderBase]

thanks for the detailed info.

sir, are exact the same as @Derick2k detailed in this picture posted on the M27C322 NOS theard.

 

[xodaraP]

do not buy chips from ebay, from this seller (jk_parts)

I've bought several hundred EPROMs from that seller and I've only ever run into 2 or 3 bad ones.

i don't know what to say sir because i didn't use the chips at this moment .. are in the tube that comes with the box. but i only say about them are scratched from original brown sourface and stamped with pink infos on them . may all what i have at home now will be great to use on the future projects too.... i found a chip without a leg in the lot i grabbed.

Sadly even the good sellers who weren't selling rebelled chips in the past seem to be selling them now. I assume they buy them from recyclers themselves and this is what they are being given.

Frustrating, but unless you buy NOS (and there is some 27C322 NOS on offer at the moment) then it's only going to get worse from the Chinese sellers.

I buy quite a few of different types and I've not had too many issues so far.