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Micron Kicks Off Mass Production of 12Gb DRAM Chips (anandtech.com)

Posted by BeauHD on from the new-and-shiny dept.

Micron is now producing its first LPDDR4X memory devices using its second-generation 10nm-class process technology. "The new memory devices offer standard LPDDR4X data transfer rates of up to 4.266 Gbps per pin and consumes less power than earlier LPDDR4 chips," reports AnandTech. From the report: Micron's LPDDR4X devices are made using the company's 1Y-nm fabrication tech and feature a 12 Gb capacity. The manufacturer says that its LPDDR4X memory chips consume 10% less power when compared to its LPDDR4-4266 products; this is because they feature a lower output driver voltage (I/O VDDQ), which the LPDDR4X standard reduces by 45%, from 1.1 V to 0.6 V. Micron's 12 Gb (1.5 GB) LPDDR4X devices feature a slightly lower capacity than competing 16 Gb (2 GB) LPDDR4X offerings, but they are also cheaper to manufacture. As a result, Micron can offer lower-cost quad-die 64-bit LPDDR4X-4266 packages with a 48 Gb (6 GB) capacity and a 34.1 GB/s bandwidth than some of its competitors.

7 of 52 comments (clear)

  1. What is "1Y-nm" ... here's an article by NothingWasAvailable · · Score: 5, Interesting

    As someone who worked in semi-conductor CAD, 1Y-nm confused me.

    I found an article in EE Times that explains is using 19 nm to 10 nm as three nodes at 1X, 1Y, 1Z, with X, Y, and Z to be defined later.

    1. Re:What is "1Y-nm" ... here's an article by NothingWasAvailable · · Score: 4, Informative

      https://www.eetimes.com/docume...

  2. Sounds interesting but... by Hallux-F-Sinister · · Score: 3, Funny

    I’m holding out for LVPQDR5Z99 chips. The more letters and numbers it has, the more awesome it is, right? Why in 2018 are people settling for only DOUBLE data rate (DDR,) we should hold out at least for triple data rate (TDR) as a minimum!

    Honestly... are they seriously going to keep jamming more letters and numbers onto things?

    --
    Our reign has gone on long enough. Indeed. Summon the meteors.
    1. Re:Sounds interesting but... by rrohbeck · · Score: 3, Funny

      I'm rather partial to the LPXDRWTFBBQ product family.

      --
      thegodmovie.com - watch it
    2. Re:Sounds interesting but... by ShanghaiBill · · Score: 2

      people settling for only DOUBLE data rate (DDR,) we should hold out at least for triple data rate (TDR)

      That doesn't make any sense. DDR sends data on both the rising and falling edge of the clock. TDR would have no clock edge to sync the data, so it wouldn't work. If you want more data, then either increase the clock rate, or widen the bus.

      It is possible that the TDR comment was a joke, and I have been whooshed, in which case I apologize for being a humor-impaired Aspie.

  3. Re:DDR4-4266 Speeds? by GabeGhearing · · Score: 4, Informative

    This is LPDDR; Intel and AMD don’t support it. Intel announced support in CannonLake that was supposed to ship in 2016... and still isn’t available to consumers.

    LPDDR4 has been standard on ARM devices(phones/tablets) for quite a few years.

    4266 is the highest rated LPDDR4 chips in the LPDDR4 spec. Even the Galaxy S9 only uses LPDDR4-3732 (1866MHz). https://www.qualcomm.com/produ...

    Maybe Apple’s new iPads use LPDDR-4266.

  4. Re:Rowhammer? by GabeGhearing · · Score: 2

    Yes and no, the LPDDR4 JEDEC(rather than vanilla DDR4) has TTR to mitigate Rowhammer... but support in memory modules is optional.