Guy Sotomayor wrote:
On Dec 27, 2009, at 9:08 AM, dwight elvey wrote:
Hi
Even faster would be to use a CMOS RAM and
a battery. No special voltages or special
write sequences.
Battery == bad. Use FRAM. It's just like RAM except it retains it's
contents when power's off. Comes in x8 and x16 varieties.
I use FRAM in my drive controller. Not that I needed the non-volatile
properties. It's serial(great for small number of pins, opcodes very
easy to use), 8 pins, no wait write/reads, fast (up to 20mhz),
reprogrammable virtually unlimited number of writes.
I got samples from local Ramtron distributor.
(I haven't followed the thread, so no idea if this is applicable to task
at hand, but I still think these are neat chips. :)
Keith