RE: 2101 / 5101 Question

I replaced a 9101 in a Centipede board with a slow 5101 and it seemed
to work fine. I'll have to do some burn-in tests to see if it overheats
or not over time ...

It would be nice if you did the 2101/5101/9101 substitute and tell the group

if it worked or not in a Cinematronics board ... I'll do the same (when,
hopefully,
 I can find the time ...).

  SPW
  Kanata, On
  CANADA

> -----Original Message-----
> From: John Robertson [SMTP:jrr@flippers.com]
> Sent: Monday, December 13, 1999 11:24 AM
> To: vectorlist@lists.cc.utexas.edu
> Subject: Re: 2101 / 5101 Question
>
> 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 11:37:33 1999