Subject:
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Re: Non Volatile Memory 2
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 30 Dec 1997 04:54:55 GMT
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Original-From:
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Romklau Nagamati <NAGAMATI@NETCOM.antispamCOM>
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Viewed:
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1364 times
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Cypress has their datasheet online. Look for cy62256 at www.cypress.com.
If you just want a shortcut to backed up RAM, you might investigate
Dallas Semi's smartsocket DS1213. Simply replace the socket with DS1213
and piggy back 62256 on top. You also might have to extend the LCD
connector pins because it adds 1/2 inch to the height. Spec. claims 10 years
on its own embedded Lithium bat. It's a little pricey, though ($12.50 OEM).
Else, if you are working on a new design, look at dual supply DS1218 NV
controller.
--Ron
>
> Should be.
> You can probably find the power requirements from the manufacturere of the
> ram chip on the internet. Or if not, call the maunafacturer up and ask
> them to send you specs.
>
> -----------
> ericson mar • [stuff deleted]
>
> On Sun, 28 Dec 1997, Joe Martin wrote:
>
> > What are the power requirements of the battery backed RAM and would it be possible to set this RAM up with a lithium battery similar to a PC so that the RAM would hold its memory for several years?
>
>
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Message is in Reply To:
 | | Re: Non Volatile Memory 2
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| Should be. You can probably find the power requirements from the manufacturere of the ram chip on the internet. Or if not, call the maunafacturer up and ask them to send you specs. ---...--- ericson mar Master of Engineering Candidate Project: (...) (27 years ago, 29-Dec-97, to lugnet.robotics.handyboard)
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