Subject:
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Re: SPI ram
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Wed, 8 Apr 1998 13:27:48 GMT
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Original-From:
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Jim Fong <jfong@hooked.net%IHateSpam%>
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Viewed:
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1686 times
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Anthony,
A easier way to get 8K of EEPROM memory is to use Microchip Technology
25C640 Serial SPI EEPROM Memory. This is a 8 pin DIP device with a built in
SPI interface. Cost is about $3 each. I wrote a simple application note to
connect to a HB with IC program. I had used a 25C160 (4K) device b4 the
25C640 (8K) was available. The ap note still applies though.
The ap note can be downloaded from my web site under Design & Ideas.
I had thought about doing a design similiar to yours a while back but was
flipping through a Microchip data book and saw the 25xxxx series of SPI
memory. Was actually quite surprised when I found out how inexpensive they
were!
Jim Fong
Embedded Acquisition Systems
http://www.hooked.net/~jfong
At 06:24 AM 4/8/98 -0500, you wrote:
> If anyone cares, I have posted my SPI ram card design to the web at
> http://www.cs.utexas.edu/users/oren/hbram.shtml
> It is probably laughable, but I thought it was a good effort for not
> knowing too much about electronics.
>
>
> Anthony Oren Loeppert ***
> http://www.cs.utexas.edu/users/oren/ * o*
> * ***>
> * *
> * *
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> * *
> * * * **\
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Message is in Reply To:
 | | SPI ram
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| If anyone cares, I have posted my SPI ram card design to the web at (URL) is probably laughable, but I thought it was a good effort for not knowing too much about electronics. Anthony Oren Loeppert *** (URL) * o* * ***> * * * * * | | * * | / * * |/ (...) (27 years ago, 8-Apr-98, to lugnet.robotics.handyboard)
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