11 Feb
2015
11 Feb
'15
5:41 p.m.
On 02/11/2015 01:20 PM, Chuck Guzis wrote:
On 02/11/2015 10:51 AM, Jon Elson wrote:
Well, the original ones were as you say, but there was a lot
of work going on to make
massive improvements. Yes, you sure would not want to use
them as main CPU
memory. But, as a solid state disk replacement, as flash
memory sticks are used
today, they might have significant advantages.
I never understood why bubble memory didn't
continue to
progress. Vertical
Bloch line memory might have eventually developed to the
capacity of
modern flash memories, and probably not had the wear-out
problem.
They never would have reached the read performance of
flash, but might
have kept up with the write performance.
Bulky, power-hungry and expensive, mostly--and slow
random-access, as it was recirculating.
On the other hand, the only thing that seems to be
holding
MRAM and FRAM back is density. TI is aggressively
marketing MSP430 MCUs with embedded FRAM.
Yes, the FRAM looks very interesting, they are just starting
about 20 years behind
other technologies. But, they may catch up.
Jon