NEC Develops World's Fastest MRAM

Gary writes to tell us that NEC has developed a new SRAM compatible MRAM. The new memory module is capable of speeds up to 250MHz, the world's fastest to date. "MRAM are expected to generate new value and applications for future electronic devices thanks to their nonvolatility, unlimited write endurance, high speed operation, and ability to cut memory power dissipation in half. For example, these features could enable instant start up of PCs and prevent drive recorders from losing data after a sudden break in power in the future. As substitutes for system LSI-embedded SRAM, MRAM can provide even more value as they are expected to enable extremely low power dissipation of system LSIs because they can sleep when they are not in use and wake up instantly."

Comments

Could the reverse be done?

[SanityInAnarchy]

I always wondered why more people didn't use battery-backed RAM with some slower, more persistent storage to dump it to when you lose power.

So really, the question is, which is cheaper: a gig of MRAM, or a gig of battery-backed RAM with a gig of flash or hard disk to dump to?

Not a replacement for SRAM... yet

[Kazymyr]

I have some MRAM samples waiting to be tested in my drawer (4Mb chips from Freescale). They look good as replacement for flash chips rather that SRAM, because of better reliability and lower power consumption, however the technology is quite young and hasn't reached yet the packing density of flash, or the speed of SRAM. Lots of potential though.