20 Mar
2022
20 Mar
'22
6:59 p.m.
I cannot find a datasheet by any of the numbers silkscreened on these ICs.
Could these be proprietary IBM P/N numbers?
https://www.dropbox.com/s/f6rvemx9ldbbv5x/EPROMS1.jpg?dl=0
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image.
Thanks
Don Resor
20 Mar
20 Mar
7:46 p.m.
On 3/20/22 20:59, D. Resor via cctalk wrote:
I cannot find a datasheet by any of the numbers
silkscreened on these ICs.
Could these be proprietary IBM P/N numbers?
Yes, they are.? But, very likely
standard 27xx series of
EPROMS, all you need to know are how many address bits there
are and you should be able to cross-refence them to standard
Intel EPROMs.
Jon
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