Everspin – Everspin’s MRAM Gives Designers Confidence That Critical Data is Protected and Retrievable in Mission Critical Systems


Industrial controls, PLCs, robotic manufacturing, engine control units, infotainment systems, power steering units, and brake management systems equipment all have one thing in common: each of these designs must store logged data during a brownout, or when power is interrupted or lost.

Storage capacitors are generally used to keep the entire system powered when data must be transferred from volatile memory to non-volatile memory (FLASH or EEPROM are generally used). Non-volatile MRAM (Magneto-resistive RAM) eliminates the need for this effort because storing data in MRAM is always fast and non-volatile.

With SRAM and SPI interfaces (i.e. no unique voltages, no unique commands), fast write speeds, unlimited endurance, 20 year data retention and automotive temperature ranges, MRAM is the ultimate solution for storing data.

With the speed and unlimited endurance of SRAM, yet the non-volatility of FLASH, using MRAM eliminates designing products with a limited lifetime. Storing more data more often provides better system performance and ultimately a better product for the customer. And when storage capacitors are eliminated, system reliability increases and total cost of ownership is reduced.

The Everspin MR25HXX family of MRAM devices comes in densities from 128Kb to 4Mb with a standard SPI protocol, no write delays and unlimited read/write endurance. Everspin’s parallel MRAMs perform like standard SRAM. With densities up to 16Mb, MRAM is the ideal memory solution for applications that require critical data logging.



  • No write delays
  • Unlimited write endurance
  • Data retention greater than 20 years
  • Data protection on power loss
  • Radiation tolerant


  • Store data only once
  • No need to transfer data to non-volatile memory when power is lost
  • Eliminates the need for super capacitors
  • Increases reliability
  • Reduces system cost

Parallel I/FDensityPackage
MR256A08BCMA256Kb48 BGA

SPI I/FDensityPackage
MR25H128A128Kb8-pin DFN
MR25H256256Kb8-pin DFN
MR25H101Mb8-pin DFN
MR25H404Mb8-pin DFN
MR10Q010*1KbSOIC and BGA