MRAM Everspin

Other Hardware Storage
1

Hi

I got my hands on 2 pcs. of everspin mram i want to use in a project. I got a arduino uno board and iam wondering how much it takes to make it work with arduino. Iam not concerned about the coding but on how to make a working surcuit. Any ideas?

http://www.everspin.com/product.php?pn=MR25H40CDC&hjk=SERIAL&a1f3=4Mb

2

iam wondering how much it takes to make it work with arduino

30 minutes..

3

Hi there,
according to it's datasheet http://www.everspin.com/PDF/EST_MR2xH40_prod.pdf, it uses SPI with an 24 bit adress.
So i think you can use this ---> 23LC1024 SRAM Library - Storage - Arduino Forum (?)

4

Thanks alot - i will dive into it :slight_smile:

5

NikolaiDK,

Everspin's MRAM's look like a regular SRAM to the designer.... no unique voltages or commands.... no batteries or VCaps. They really are changing the way engineers architect their systems. The MR25H40xxx does use a standard SPI protocol, except that there are fewer commands. If you have further questions, please go to the below website and request assistance:

http://www.everspin.com/helpdesk.php?qt=6

6

They really are changing the way engineers architect their systems.

Are the mrams sensitive to magnetic fields? (ie strong magnets, or inductors/transformers, switching power supplies..)

7

pito:

They really are changing the way engineers architect their systems.

Are the mrams sensitive to magnetic fields? (ie strong magnets, or inductors/transformers, switching power supplies..)

I think they are as mutch sensitive to magnetic fields as a harddisc drive. The smaler the magnetic 'bit' the bigger the momentum to twist it.