[sdiy] SRAM question

[m.bareille at free.fr]

Hi Ian,

There is an internal psu low voltage detector who switch automaticaly the ram to
the battery.  When the RAM is powered again , the circuit switch the ram to the
main psu. The static ram do not need to be refreshed externaly...


Thanks,

Marc B.




Selon Ian Smith <taciturn_unquiet at hotmail.com>:

>
> Hey all,
>
> For those of you that are still here and haven't unsubed and gone over to the
> yahoo list, I have a question about SRAM chips and batteries for memory.
>
> How exactly does this work? using a battery to retain the data saved in the
> chip?
>
> Thanks,
>
> Ian (still here) Smith
>
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