SAN FRANCISCO—Micron Technology Inc. Monday (May 7) announced development of its first fully functional DDR4 DRAM module.
Micron (Boise, Idaho) said it began sampling the DDR4 module earlier this year and has received feedback from major customers to support quick implementation for applications in 2013.
Co-developed by Taiwan's Nanya Technology Corp. and based on Micron's 30-nm technology, the 4-gigabit DDR4 x8 part is the first piece of Micron's portfolio of DDR4-based modules, which will include RDIMMs, LRDIMMs, 3DS, SODIMMs and UDIMMs (standard and ECC), Micron said. For the soldered down space, x8, x16, and x32 components will also be available, with initial speeds up to 2400 megatransfers per second (MT/s), increasing to the JEDEC-defined 3200 MT/s, Micron said.
"With the JEDEC definition for DDR4 very near finalization, we've put significant effort into ensuring that our first DDR4 product is as JEDEC-compatible as it can be at this final stage of its development," said Brian Shirley, vice president for Micron's DRAM Solutions Group, in a statement. "We've provided samples to key partners in the market place with confidence that the die we give them now is the same die we will take into mass production."
Volume production of the DDR4 module is planned to commence in the fourth quarter, Micron said.
DDR4 technology already is available in Netlist (NLST) HyperCloud memory - now available from IBM (as HCDIMM) and HP (as HP Smart Memory HyperCloud or HDIMM).
NLST HyperCloud will supplant LRDIMMs - as LRDIMMs are based on NLST IP.
LRDIMMs had copied NLST IP - and been aggressive about it. However they have suffered a defeat in their challenge of Netlist IP - as NLST patents '537 and '274 have survived reexamination at the USPTO with all claims intact - which is a powerful signal of what is to come for Netlist vs. Inphi (basically Inphi will be unable to challenge NLST IP in court !).
LRDIMMs also underperform - as they have high latency and are unable to reach full speed at full memory loading (3 DPC at 1333MHz is not achievable by LRDIMMs on HP servers).
Therefore the market for LRDIMMs will be served by NLST HyperCloud - and if LRDIMMs are sold maybe NLST will get damages from that eventually (or LRDIMMs could face recall ?).
LRDIMMs are also at end-of-life because they have implemented NLST IP improperly - by choosing a centralized buffere which leads to asymmetrical line lengths and skew (thus the higher latency issues).
Netlist says they will be the first proprietary standard which will be adopted by the industry - for DDR4.
And DDR4 is looking more and more like NLST HyperCloud.
So expect JEDEC to license NLST IP sometime before finalization of the DDR4 standard.
Until DDR4 appears you will only be able to buy NLST HyperCloud to do what you thought LRDIMMs could (as LRDIMMs under a cloud) - however for DDR4 expect licensees to also be making memory along with NLST.
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