Hi all,
I'm renovating an old ACORN System 1 computer (circa 1979) and need a datasheet for an old and obsolete part - INS 8154. It's a 40 pin IC, with I/O ports and a small amount of RAM.
I've tried the web search engines and been in contact with National (the original manafacturer) but not had any luck.
Can anybody please help.
Thanks, Joe