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PC memory holy grail discovered

Mucho

Guest
Looks like they reinvent the magnetic core memory.

Magnetic-based chips can hold data when PC off Texas' Freescale
is first to market with MRAM

Jul. 10, 2006. 01:00 AM
DAVID KOENIG
ASSOCIATED PRESS

DALLAS?Achieving a long-sought goal of the $48 billion (U.S.) memory chip industry, Freescale Semiconductor Inc. announced the commercial availability of a chip that combines traditional memory's endurance with a hard drive's ability to keep data while powered down.

The chips, called magneto-resistive random-access memory or MRAM, maintain information by relying on magnetic properties rather than an electrical charge. Unlike flash memory, which also can keep data without power, MRAM is fast to read and write bits, and doesn't degrade over time.

Freescale, which was spun off of Motorola Inc. in July 2004, said today it has been producing the 4-megabit MRAM chips at an Arizona factory for two months to build inventory. A number of chip makers have been pursuing the technology for a decade or more, including IBM Corp.

Sometimes referred to as "universal" memory, MRAM could displace a number of chips found in every electronic device, from PCs, cellphones, music players and cameras to the computing components of kitchen appliances, cars and airplanes.

"This is the most significant memory introduction in this decade," said Will Strauss, an analyst with research firm Forward Concepts. "This is radically new technology. People have been dabbling in this for years, but nobody has been able to make it in volume.''

Electronic memory is ubiquitous in today's world, but each flavour of memory-chip technology has different strengths and weaknesses. Often times, a single device has multiple types of memory chips to take advantage of the benefits of a particular technology.

Static and dynamic random access memory chips, used in PCs and elsewhere, are fast but lose data when the power is switched off. Flash memory chips, which are commonly found in music players, cameras and cellphones, retain information but are slower and degrade over time.
Bob Merritt, an analyst with Semico Research, said memory makers are hunting technology that will be faster, smaller, cheaper and retain data when the power is off to help run portable computers and cellphones.

"This is a significant step forward and absolutely critical for moving into the smaller forms that consumers and industry want,'' Merritt said.
Ultimately, the technology could displace the RAM found in PCs, enabling systems that boot up immediately because data don't have to be reloaded into the memory chips.

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Originally posted by: Demon-Xanth
I heard about MRAM a couple years ago. Still have yet to see it in action.

Same here. I believe they had something on it earlier this year or late last year. Either an article in magazine or online review about it. I will see about digging this up.
 
sweet. this could allow,in time, for an appliance such as an mp3 player to have huge capacities without having a harddrive. more importantly, it may finally replace the harddrive which hasn't changed since 1954. (yes there have been improvements, but the basic idea is still the same and hasn't changed. just like a car.) this could allow an mp3 player to have large capacities while still retaining the advantages of flash based players.
 
For only $200,000 per stick too!!!

Seriously though, they have had RAM hard drives fo a long time, they are just stupid expensive. Maybe this new technology will bring down the price?
 
i don't think this will replace flash memory in mp3 player type environments...if they can make it similar to ddr ram, think of having a 1 gb board of ddr in your flash player...at best it would be huge compared to flash, cost a lot more, and use more power.
 
Unless they can make it really really fast (faster than current DRAM), it's not going to replace DRAM in PC's IMO, because there is no real need for RAM to be able to hold data when powered off. It's not meant to be a storage device.
It could replace other things when capacity grows enough though, like hard drives, flash memory etc.
 
Yeah I don't they will change it for mp3's or anything like that. It will only drive up the prices on those, then nobody would want them.
 
Originally posted by: Lonyo
Unless they can make it really really fast (faster than current DRAM), it's not going to replace DRAM in PC's IMO, because there is no real need for RAM to be able to hold data when powered off. It's not meant to be a storage device.
It could replace other things when capacity grows enough though, like hard drives, flash memory etc.

Ahhh but think of the faster boot times into windows!! But seriously thats like the only advantage I can really think of.
 
Originally posted by: ForumMaster
sweet. this could allow,in time, for an appliance such as an mp3 player to have huge capacities without having a harddrive. more importantly, it may finally replace the harddrive which hasn't changed since 1954. (yes there have been improvements, but the basic idea is still the same and hasn't changed. just like a car.) this could allow an mp3 player to have large capacities while still retaining the advantages of flash based players
Considering the first production chips will be 4 mbit, it will probably be years before it is commercially viable to replace desktop DRAM - let alone a 200 GB hard drive.
 
Originally posted by: Lonyo
Unless they can make it really really fast (faster than current DRAM), it's not going to replace DRAM in PC's IMO, because there is no real need for RAM to be able to hold data when powered off. It's not meant to be a storage device.
It could replace other things when capacity grows enough though, like hard drives, flash memory etc.


This is not going to be used to replace Random Access Memory, it is intended to replace platter based hard drives, and yes it is many times faster than a traditional hard drive
 
Originally posted by: Lazy8s
For only $200,000 per stick too!!!

Seriously though, they have had RAM hard drives fo a long time, they are just stupid expensive. Maybe this new technology will bring down the price?


The current RAM based hard drives are just that, a stick of volatile memory with a battery backup. This requires no power to store data.
 
Originally posted by: NFS4
Originally posted by: Lazy8s
For only $200,000 per stick too!!!

Seriously though, they have had RAM hard drives fo a long time, they are just stupid expensive. Maybe this new technology will bring down the price?

$25

http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MR2A16A&srch=1

$25 for a 512kB chip.

"The MR2A16A is a 4,194,304-bit magnetoresistive random access memory (MRAM) device organized as 262,144 words of 16 bits."
 
Originally posted by: Demon-Xanth
Originally posted by: NFS4
Originally posted by: Lazy8s
For only $200,000 per stick too!!!

Seriously though, they have had RAM hard drives fo a long time, they are just stupid expensive. Maybe this new technology will bring down the price?

$25

http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MR2A16A&srch=1

$25 for a 512kB chip.

"The MR2A16A is a 4,194,304-bit magnetoresistive random access memory (MRAM) device organized as 262,144 words of 16 bits."

Heh, $12,800 for a 256mb stick of ram of this stuff. (assuming my calculator isn't broke 😉)
 
Originally posted by: bunker
Originally posted by: Demon-Xanth
Originally posted by: NFS4
Originally posted by: Lazy8s
For only $200,000 per stick too!!!

Seriously though, they have had RAM hard drives fo a long time, they are just stupid expensive. Maybe this new technology will bring down the price?

$25

http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=MR2A16A&srch=1

$25 for a 512kB chip.

"The MR2A16A is a 4,194,304-bit magnetoresistive random access memory (MRAM) device organized as 262,144 words of 16 bits."

Heh, $12,800 for a 256mb stick of ram of this stuff. (assuming my calculator isn't broke 😉)

And there was a time not all that long ago when plain old DRAM was more expensive than that.

 
Nothing was "discovered". This technology was used well before conventional DRAM, on big iron mainframes nearly half a century ago although in a much larger physical formfactor (google "magnetic core memory", the source of the still-used term "core dump" today).

What will be the effect of its "rediscovery?" Let's look from 10000ft...

The hierarchy of memory types exists in computer systems largely because the cost of a data storage device is (roughly) exponentially proportional to its speed. In other words, the faster the module, the more more astronomically expensive it gets to produce. It WORKS as a solution because the last data/instruction used is statistically most likely to be used again; dont confuse why it exists with why it works, the architecture of modern computers has always been a compromise in order to keep engineering build cost reasonable (google EDVAC or John von Neumann). This is one of the main reasons why someone doesn't just make a "perfect" computer with gigabytes of SRAM. That, and the modules are on average four times the size of DRAM for comparable capacities.

So SRAM is fastest/most expensive, and is used sparingly as L1/L2 cache. DRAM is cheaper but complex internally and slow but still faster than direct disk access (ns not ms measurement), thus suited for the next hierarchical level down, in a greater quantity but still not huge. Last is the dog-slow but enormous disk, with its ms access times and moving parts; virtual memory is the last resort in the memory hierarchy.

MRAM promises to combine the speed and refresh-circuitless design of SRAM, the cost and physical size of DRAM, and the non-volatile storage (and eventual capacity) of disk into one solid-state storage super-solution. In a couple decades (assuming much lower costs and higher capacities) it stands to change the way computers are structured altogether, because with a nonvolatile storage device fast enough to run programs directly there really might be no need for conventional RAM. While traditional disks will always continue to exist to satisfy the storage needs of huge raw datasets where capacity is valued over speed, I can definitely see a market for relatively smaller MRAM "arrays" used in the same way that 15k boot disks meet a performance need now.

In the meantime, hybrid disks with integrated MRAM are on the horizon to facilitate the dawn of "instant-on" computing. I think I read somewhere that Vista might support this if they do come to market (the OS would have to specifically support or not since particular boot-time files would need to be written to the MRAM portion, not just the content of memory at the time of a "hibernation").
 
Originally posted by: iwantanewcomputer
i don't think this will replace flash memory in mp3 player type environments...if they can make it similar to ddr ram, think of having a 1 gb board of ddr in your flash player...at best it would be huge compared to flash, cost a lot more, and use more power.

In theory the cell size could be made the same as DRAM.

So, it could reach DRAM size, SRAM speed, uses 99% less energy than DRAM... and retains its data in a power-off.

I'll bet the embedded development community can find lots of new uses for this type of storage.
 
Originally posted by: AStar617
..*snip*....
So, what is your projection of when MRAM can be of use for the PC and portable market? When cost becomes equivalent to todays DRAM. Are we talking about several years or decades?
 
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