NVRAM battery replacement (was Re: Thick Net Cable Terminator in Sydney Australia)

From: Ethan Dicks <ethan_dicks_at_yahoo.com>
Date: Mon Jul 30 14:05:47 2001

--- jkunz_at_unixag-kl.fh-kl.de wrote:
> (Or a mini drilling machine to replace dead cast-in batteies of
> NVRAM/clock chips.)

I have a small box of dead NVRAM chips (48T02 from various sun4c machines). I
was thinking about recycling one for a clock project (PIC or 8051 or mc68k
based, depending on which way I jump). Are there any components other than
the battery in the potted lid? i.e., can I just remove it entirely or
do I have to perform delicate surgery to seperate the front leads and solder
wires onto the front of the I.C. where the lid used to connect?

> Every time I do this for friends, that don't know
> how to handle "hardware tools", I get amazed glances. :-)

I got "the hairy eyeball" for showing off stuff like this at work. I
soldered a 3V solder-tab lithium cell to a 9V battery snap and a 9V
battery cable to one of the aforementioned 48T02 NVRAMs. Got lots
of strange looks from the boss, but it was my spare from home when I
needed one right away and didn't want to wait for the replacements
from Mouser to show up.

-ethan


=====
Visit "The Seventh Continent"
http://penguincentral.com/penguincentral.html

__________________________________________________
Do You Yahoo!?
Make international calls for as low as $.04/minute with Yahoo! Messenger
http://phonecard.yahoo.com/
Received on Mon Jul 30 2001 - 14:05:47 BST

This archive was generated by hypermail 2.3.0 : Fri Oct 10 2014 - 23:33:55 BST