15 Dec
2018
15 Dec
'18
8:23 p.m.
On Dec 15, 2018, at 7:09 PM, allison via cctech
<cctech at classiccmp.org> wrote:
On 12/15/2018 01:01 PM, Guy Sotomayor Jr via cctech wrote:
I think you?re mistaken about FRAM and MRAM. They are byte oriented devices
and are designed to replace SRAM + battery. Which in my mind makes them
preferable as they reduce parts count. The current MRAM has unlimited write
endurance (same as SRAM) and depending upon the part is 35-55ns access/cycle
time. FRAM has a similar access time but requires an internal restore so it?s cycle
time is about 2x (one of the reasons I prefer MRAM now).
TTFN - Guy
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).
TTFN - Guy
> On Dec 15, 2018, at 1:22 AM, Rod G8DGR via cctalk <cctalk at classiccmp.org>
wrote:
>
> I have an idea to produce an MM-8 clone using RAM that acts like core when turned
off.
> Can anybody suggest a chip that will do this?
>
> Rod Smallwood
>
>
Flash, EEprom and Magnetic FRAM and MRAM) types
have many unacceptable
properties for a random access read write memory.