[vcf-midatlantic] GW-48T02-1 a Replacement for 48T02 RTC/NVRAM Batteries

Ethan telmnstr at 757.org
Tue Aug 1 16:19:42 EDT 2017

> I've got a pile of old Sun boxes I'm going through, dealing with dead
> NVRAMs of course. I ordered some ST 48T02 replacements from Mouser, only to
> find out they're not 100% compatible. So, since I was going to have to
> modify a whole bunch of old 48T02s, and there are space constraints on some
> of the systems, I designed a little module with a CR1225 and crystal to
> totally replace the CAPHAT on a 48T02. Here's the writeup:
> http://www.glitchwrks.com/2017/08/01/gw-48t02-1
> I've got 100x on order, in panels of 10. If anyone is interested in some
> bare panels, assembled modules, or complete 48T02 replacements, let me know!
> I'll be doing other modules for the 48T08 and probably one to turn a
> DS12885 into a DS12887.
> Thanks,
> Jonathan

Have you looked at the FRAM chips? Wouldn't have a RTC but can prob shed 
the battery.

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