🚀 go-pugleaf

My understanding is that it's non-trivial to build circuitry that will
reliably keep a battery-backed RAM out of trouble during powerup and
powerdown.  If you want a solution quickly, buying one is probably simplest.

>I know Maxim and Dallas Semiconductor make chips that tame this problem, 
>but I'm wondering if they're actually necessary.  Does anyone have Dallas
>Semi's address?

Dallas Semi is at 4350 Beltwood Pkwy S, Dallas Texas 75244, (214)450-0400.
They make a nice gadget called a "smart socket" that is probably just what
you want -- it's a socket for a standard static RAM (actually there are
several depending on exactly what size of RAM) that includes batteries and
a switching circuit.  Use one of these instead of a standard socket and
you have battery backup.  They are not inordinately expensive.
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Subversion, n:  a superset     |     Henry Spencer at U of Toronto Zoology
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