SRAM chips

[R@F]

>
> >IMHO every SRAM goes in sleep mode when it is not selected, eg. /CS is
> >high.
> >
> Yes but you have to look at the current consumption is when in this mode..
> sure it will be less than what the chip draws in active mode, but it can
in
> some cases still be several ma.. far too much for a lithium backup..
> Cheers,
> Dan
>

So you need a CMOS RAM in any case. CMOS technology only draws current
during switching activities. The 2114 is NMOS if I remember right.