14 Aug
2006
14 Aug
'06
9:27 p.m.
On 8/15/06, Bob Rosenbloom <bobalan at sbcglobal.net> wrote:
Don't FRAMs have a maximum write count? Other than that, they are an
excellent idea (and pin-compatible with 62256s, IIRC).
The level shifters, etc., are a bit of a hassle, though.
Old-fashioned SRAM is cheap and plentiful and TTL-friendly.
Ethan Dicks
wrote:
> Why not use a pair of 62256s? 32Kx16 and ignore 4 bits. It'd even be
> easy to use a Dallas DS1210 or something like it to provide battery
> backup.
How about two Ramtron FM18L08's? Nonvolatile like core with no battery
to die or leak. Would need level shifters to 3.3 volts
and slightly different timing. Low power, and in DIP or SMT. I'm just tired of cleaning boards that had
batteries that leaked all over them.
Understandable. I have at least one dead Amiga from a leaky NiCd.
:-( I've never seen Li Coin Cells leak, though.
-ethan