diy NVRAM
diy NVRAM
DS1245Y ICs too expensive? Then why not make your own?
Take one 128k low power CMOS SRAM chip (681000,628128 etc), add a memory controller IC and lithium battery,
and you have a DS1245Y-70 compatible NVRAM for about $10.
It programs set as a DS1245Y device, and has the added advantage that you can change the battery when it's flat instead of binning it.
Here's my dead bug style prototype - don't laugh, it actually works I might get a couple of pcbs made up - for some reason that one looks a little too fragile to stick in an ecu, but nothing a bit of hot glue couldn't fix
Take one 128k low power CMOS SRAM chip (681000,628128 etc), add a memory controller IC and lithium battery,
and you have a DS1245Y-70 compatible NVRAM for about $10.
It programs set as a DS1245Y device, and has the added advantage that you can change the battery when it's flat instead of binning it.
Here's my dead bug style prototype - don't laugh, it actually works I might get a couple of pcbs made up - for some reason that one looks a little too fragile to stick in an ecu, but nothing a bit of hot glue couldn't fix
- antus
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Re: diy NVRAM
I like
Have you read the FAQ? For lots of information and links to significant threads see here: http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396
- VL400
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Re: diy NVRAM
Nice one
- Holden202T
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Re: diy NVRAM
frankennvram!
No matter what the question is, the answer is always more horsepower!
Just starting out? Have a read of the getting started guide
Basic tuning of a delco ECM with $12P thread
Advanced tuning of a delco ECM with $12P thread
Just starting out? Have a read of the getting started guide
Basic tuning of a delco ECM with $12P thread
Advanced tuning of a delco ECM with $12P thread
Re: diy NVRAM
A slightly less dodgy looking design - it could also be done on veroboard easy enough.
Re: diy NVRAM
big thumbs up mate can see myself owning a few of these in the near future.
Re: diy NVRAM
sweet nice work
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Re: diy NVRAM
Thats very bloody nice & 2nd edit looks tidy as!
I would def like some of these too!
I would def like some of these too!
- Holden202T
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Re: diy NVRAM
what does the height work out like compared to a nvram ?
No matter what the question is, the answer is always more horsepower!
Just starting out? Have a read of the getting started guide
Basic tuning of a delco ECM with $12P thread
Advanced tuning of a delco ECM with $12P thread
Just starting out? Have a read of the getting started guide
Basic tuning of a delco ECM with $12P thread
Advanced tuning of a delco ECM with $12P thread
Re: diy NVRAM
about 11mm, compared to 9mm for a DS1245Y.
Is height an issue with certain PCMs? I've only played with 808s...
Is height an issue with certain PCMs? I've only played with 808s...