|        I did a program for write on 2864 address a value...(with the 6264 work
s well :) ), but i
|not having success..don't write the value!

|        Is there some 2864 model of XICOR or ATMEL or other manufacturer that a
ccepts fast write
|cycles...that store information as a 6264...

|        Well, i'm looking for a 2864 that accepts FAST pulses on PIN WR. (i don
't to use an 6264
|with Battery to store data...). Months ago i did use a XICOR for store data in
my project...but
|i don't remember more the name?

All 28x64 variants will, I expect, require a multi-operation sequence to
write data.  I don't think the /WR pulse time will be a problem, but once
you start a data write you can't read or write anything until the write
completes sometime later.

You may, however, want to look at http://www.ramtron.com since they make
some memory devices which are non-volatile but offer speeds comparable to
somewhat slow static RAMs.  I think they have an 8Kx8 part which could be
just the ticket.  Do be aware, though, that--since you won't have the sequ-
encing logic of the 28x64 to protect you from spurious writes--you'll have
to ensure the /CE and/or /WE are well-protected in case of device power-up
or power-down.  If that requirement is met, though, those parts could be
just what you need.