Re: What are these Apple II chips?
- From: dempson@xxxxxxxxxxxxx (David Empson)
- Date: Sat, 23 Apr 2011 09:58:14 +1200
Sam Latella <powergs@xxxxxxxxxx> wrote:
Hopefully someone can help me with the list of Apple II/IIgs chips.
Here are the numbers
342-0108-B
342-0105-B
342-0106-B
342-0107-B
No idea about the above lot.
VL65C816 - IIgs Cpu
341-0737
341-0748
The above two ring a bell. A little research reveals they are the
standard FC-FD and FE-FF ROMs from a ROM 3 IIgs. I can't think why you
would have them as loose chips unless someone depopulated a ROM 3 board.
The ROM 3 never had any firmware updates, but there were some early
prototypes out in the wild with different firmware revisions.
I think these are early Mac chips
343-0002-1
MC68881RC168
The 68881 is a floating point coprocessor by Motorola, for use with a
68020 or 68030 processor. In a Mac it could be used in at least some of
the Mac II, IIx, IIcx, IIci, SE/30 and similar age models. The 68040 had
it built in, so later Macs didn't need it.
Marathon 030 board
I'm guessing the "030" refers to a 68030 processor. Google "Marathon 030
board" (without the quotes) and the first link is an InfoWorld article
about it from 1988.
AAA1M300J-08 - early mac memory?
Google and wading through the results found this one:
http://www.seekchip.com/icstock-A/AAA1M300J-08.html
which reveals it is a 16 megabit static RAM, organised as 1Mx16 or 2Mx8,
running from a 3V power supply.
It might have been used for something like an audio buffer memory in a
Mac.
--
David Empson
dempson@xxxxxxxxxxxxx
.
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