MCUmall EPROM BIOS Chip Burner Forum
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 Signetics N82S141 TTL PROM		  New Topic  Reply to Topic
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mbergeron119

USA
9 Posts
Posted - 12/06/2023 :  17:56:00  Show Profile  Reply with Quote
Just need some help to find out if there is a compatible manufacturer in the database that can read chip:

Signetics N82S141 TTL PROM - Memory address mapping ROM

I have an old machine with this ROM in it Signetics N82S141N K8344 but I suppose from the bin notes it could also use NatSemi DM74S474 which I cannot find either. I really need the Signetics one as thats the chip I have.

Thank You in advance,
Matthew
Reply #1

mbergeron119

USA
9 Posts
Posted - 12/07/2023 :  19:55:59  Show Profile  Reply with Quote
This appears to be the datasheet for it.

https://www.silicon-ark.co.uk/datasheets/n82s140-n82s141-datasheet-signetics.pdf
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