ID UV erasable PROMS used on an IBM PC board?
elson at pico-systems.com
Sun Mar 20 21:46:05 CDT 2022
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
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