[sdiy] More Damn chip IDs.

[Rainer Buchty]

> Err yeah. That's exactly what I meant. I'm surprised I let that one slip
> through to the keeper. SCN2672. Wasn't there an intel part number for a
> similar ilk video generator that ended in 72 as well? 8272?

82720 was the graphics processor (which I happen to have one or two
examples somewhere in my mess).

8272 was the successor to the 765 disk controller (the latter being used
inside the Casio FZ-1).

> The other thing that's very strange about this board is that there appears
> to be no obvious connection for a keyboard. I'm wondering if the 3351 is
> some kind of UART?

I found a CS3351 from Cherry listed under "Industrial Control IC" (no pin
numbers listed) and another 28-pin 3351 which would be a 40x9 async FIFO.

> Partminer? You have to be a member of that and pay money don't you? I'm
> just wondering if you possibly found a data sheet for the two known chips?

The datasheets are there but only for money. There is a basic "snoop
around" account which costs nothing but the time for registration and
gives access to the part search engine and datasheets of quite a number of
chips -- but unfortunately, the really interesting ones are mostly locked
away.

I once asked for pricing of the smallest "let me download all datasheets"
account but never got feedback...

Rainer

-- 

Rainer Buchty, LRR, Technical University of Munich @ Garching
Phone: +49 89 289-18476, Fax +49 89 289-28232, Room 01.06.061