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cris_adder
 Post subject: Indy NVRAMs
Unread postPosted: Sun Feb 19, 2012 1:55 am 
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Joined: Wed Jan 13, 2010 12:10 am
Posts: 150
Location: Australia
Just came across these New Old Stock (NOS) Indy NVRAM, DS1386-8K-150. Have ordered a couple, hopefully they will be ok, not so sure about old stock though - if the battery is any good. After reading the semiconductor data sheet for the DS1386-8K-150, it seems that the battery is disconnected whilst in storage (bit 7):

Quote:
TIME OF DAY REGISTERS
...
When set to logic 0, EOSC (Bit 7) enables the Real Time Clock oscillator. This bit is set to logic 1 as
shipped from Dallas Semiconductor to prevent lithium energy consumption during storage and shipment
(DIP Module only).


http://www.ebay.com.au/itm/250985368732?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1497.l2649
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kubatyszko
 Post subject: Re: Indy NVRAMs
Unread postPosted: Sun Feb 19, 2012 3:52 am 
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Joined: Sat Nov 12, 2011 3:18 am
Posts: 297
Location: Tokyo
Battery may be disconnected which should increase the shelf life, but let's remember that batteries dry out just from being unused, so if it's a very old stock, don't expect miracles.
I've bought a couple of those from different source a two months ago, but didn't have the need to use them yet (my Indy still behaves).

cheers

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recondas
 Post subject: Re: Indy NVRAMs
Unread postPosted: Mon Feb 20, 2012 1:28 pm 
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Joined: Sun Jun 06, 2004 4:55 pm
Posts: 4895
Location: NC - USA
@cris_adder - Thank you for taking the time to share this.

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