Compatible but not CMOS, so they can't be used in battery backup
situations. In some equipment they won't work because they draw (I believe)
more Vcc current, but I have only seen this in a pinball game logic board,
most don't care. Check Vcc after plugging the 2101 in, if 5.00VDC or so,
then fine.
John :-#)#
At 11:01 AM 12/13/1999 -0500, you wrote:
>Question: Are the 2101 and 5101 the same part? I have some 2101 parts
>and for some reason I'm thinking they are the same as 5101s. They are
>the funny 22pin medium-wide DIPs. I have also got a few tubes of the
>goofy sockets for them. All along I've been thinking these are the
>RAMs used on the Cinematronics/Vectorbeam boards. Is this correct?
>BTW, the exact part number is: P2101-1 and the plastic tubes say AMD
>on them. I was unable to find any info on this ancient part.
>
>If anyone can fill me in on exactly, what these are I'd appreciate it.
>I'll be checking a Cinematronics schematic myself, but that won't tell
>me the whole story (2101/5101/9101/speeds/etc).
>
>Thanks,
>--
> ___ __ _ _ _
>| \ / \ | | | || | phkahler@oakland.edu Engineer/Programmer
>| _/| || || |_| || |__ " What makes someone care so much?
>|_| |_||_| \___/ |____) for things another man can just ignore. " -S.H.
John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, Video Games)
http://www.flippers.com
"Old pinballers never die, they just flip out."
Received on Mon Dec 13 10:22:23 1999
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