does anyone know where I can get a spec sheet for a M-80C31 Processor. Also 74HC245AP and M5L8255AP-5 chip. They are about 12 years old.
Thanks Dan Van
Processor/Chip info
Processor/Chip info
danvan
Re: Processor/Chip info
These guys have a replacement that's supposed to be a drop in.<p>Maxim<p>Google is your friend... No M-80C31 but the other two are here:<p>All Data Sheet Search Engine
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Re: Processor/Chip info
M-80C31 is, iirc, a variant on the old 8031 single chip micro from intel. I'd guess the the C means CMOS - the original was not CMOS (NMOS?). Not sure of the manufacturer. Look up 80c31. <p>I believe that the 31 was a precursor to the 8051 family that has been cloned by a lot of companies. I think atmel makes replacements. check their site.<p>8255 is a parallel port chip (dates from the original IBM PC) and you can still get replacements. I'd use cmos version.<p>the 245 is a standard 74HC245 bus transciever. still in production. any should work just fine.<p>Datasheets can be had for the googling. Yes, I agree, google is your friend.<p>What are you doing with them?<p>Phil<p>[ February 07, 2005: Message edited by: philba ]</p>
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Re: Processor/Chip info
If you Google for "8031", "80C31" "8255 PIA", or "LS245" you'll find tons of data. I'm assuming this is to repair an existing device? I can't see why anyone would design a new product around an 8031 these days, but sometimes I guess it might make sense, esp. as a hobby project.<p>Among the basement clutter I need to get rid of is a handful of 8032s and a few dozen EPROMs & SRAMs. I think I have a Siemens/Philips databook for the 803x series. Want 'em? They're all yours (or anyone else who responds) for slightly more than the cost of shipping -- or free if you live in the TC, MN area.
HC245s are still useful to me so I'll hang on to those.
HC245s are still useful to me so I'll hang on to those.
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