Silicon Motion shows off SM2258 controller ready for 3D TLC NAND

Silicon Motion has announced what the company claims to be the world's first turnkey 6Gb/s SSD controller with support for 3D TLC NAND. The company named its piece of silicon the SM2258, and says that when coupled with 3D TLC NAND, it should allow OEMs to create "cost-competitive, high-capacity and high-performance" SSDs.

Along with 3D TLC NAND flash from "all the major NAND suppliers," the SM2258 also supports run-of-the-mill 2D and 3D MLC chips. Silicon Motion says its controller offers "best-in-class" performance while having "ultra-low" power consumption. The company is also highlighting the controller's NANDXtend technology, which should let the controller triple the program/erase cycles of 3D TLC NAND flash, thereby extending the drives' useful lifespan. Of course, we here at TR know that consumer SSDs' reliability is often severely understated, though any improvement on this front is welcome, especially in light of TLC-flash drives' lower endurance ratings when compared to MLC or SLC.

Silicon Motion also says the SM2258 ought to allow for "extended durability and data retention," but offered no further details on that front. The company wasn't exaggerating when it said the controller is fast, though. When coupled with IMFT 3D NAND flash, the chip is apparently capable of sequential reads of up to 560 MB/s and sequential writes as high as 520 MB/s. Random I/O figure are likewise pretty good for a 6Gbps controller: 90k random read IOPS and 80k random write IOPS.

Encryption features are on the menu, too. The SM2258 supports AES-256 encryption and the TCG Opal spec. Last but not least, Silicon Motion says the SM2258 supports the Opal 3.0 and Toggle 2.0 specs, and should be able to operate under extreme temperature ranges (-40°C to 85°C) for industrial applications.

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    • ronch
    • 4 years ago

    There’s obviously a race to the bottom but i reckon most people wouldn’t care anymore when SSDs have become so cheap as long as they can be used reliably for 5 years or so.

    • Waco
    • 4 years ago

    I can’t wait for ~$0.10/GB flash. Yes, it’ll be crappy, but I don’t care. It will absolutely make my life simpler!

      • blahsaysblah
      • 4 years ago

      Only willing to pay $30 per TB of crap. $100 is too much. HDD are attainable at $20-$25 per TB.

        • Waco
        • 4 years ago

        Sure, but HDD failure rates tend to be much higher than SSDs. I’m looking at large scale, so that $0.10/GB accounts for enclosures in my little world as well. 🙂 $100K per PB starts to be attractive if it’s reliable and the power usage is reasonable.

          • blahsaysblah
          • 4 years ago

          Oh, you were talking about gold plated crap… Ok Ok.

          • blahsaysblah
          • 4 years ago

          $100/TB for enterprise class SSD?. Consumer is just gaining $200/TB momentum.

          The power, heat and space savings of multi-TB 2.5″ SSDs vs 3.5″ HDDs would make the PB solution even more embarrassing when your data center is just a closet though 😀

            • Waco
            • 4 years ago

            No, not enterprise stuff. 🙂

      • Firestarter
      • 4 years ago

      cheap flash didn’t make owning a 840 EVO any simpler

      • ronch
      • 4 years ago

      But don’t crappy products that break down easily make life more complicated?

        • Waco
        • 4 years ago

        I mean crappy as in low endurance. 🙂

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