15 Dec
2018
15 Dec
'18
12:15 p.m.
If you want the real deal you can always make a driver out of a bunch of
H-bridge ICs and an old core plane. I'll skip suggesting you weave your own
core...
On Sat, Dec 15, 2018, 2:01 PM systems_glitch via cctalk <
cctalk at classiccmp.org wrote:
Chuck,
FRAM is destructive read on the die, from what I understand. It's just that
the onboard controller takes care of it for you, much like a core
subsystem.
Thanks,
Jonathan
On Sat, Dec 15, 2018 at 1:55 PM Chuck Guzis via cctalk <
cctalk at classiccmp.org> wrote:
On 12/15/18 10:01 AM, Guy Sotomayor Jr via cctalk
wrote:
> FRAM or MRAM. I make extensive use of them in my projects.
>
> Everspin has a few (all SMT and 3.3v). As I recall they run ~$20/ea
for
4Mb (512K x 8 or 256K x 16).
As neither MRAM nor FRAM requires a write-after-read refresh, I fail to
see the "realism" in this that couldn't be satisfied with simple
battery-backed RAM or even flash-backed RAM.
Yes, MRAM is magnetic, but ti's not the same principle as real core.
FWIW,
Chuck