Comment on UltraRAM scaled for volume production — memory that promises DRAM-like speeds, 4,000x the durability of NAND, and data retention for up to a thousand years, is now ready for manufacturing

• jqubed@lemmy.world ⁨1⁩ ⁨day⁩ ago

  Like DRAM, FeRAM’s read process is destructive, necessitating a write-after-read architecture.

  So that’s why it’s still called RAM? It can hold the data a long time but the data is lost when it’s read?

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  • DaPorkchop_@lemmy.ml ⁨1⁩ ⁨day⁩ ago

    RAM just means the access latency is more or less the same regardless of which particular bit is being addressed, unlike e.g. a spinning rust drive where you have to wait for the platter to rotate into position under the drive head. EEPROM is also RAM - it’s memory and you can read any particular bit in constant time.

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  • UnfortunateShort@lemmy.world ⁨1⁩ ⁨day⁩ ago

    RAM = accessible anywhere (very simply put) D = Dynamic = loses data if power is gone

    This is NVRAM tech, NV standing for ‘non volatile’. That means it keeps the data if power is lost. You only need to re-write if you read that data. There is probably a hardwired option to do this immediately, perhaps even capacitors to ensure this goes through even if you happen to lose power that very moment.

    Consumes extra energy, may add some latency to reads, but there’s more to being fast and non-volatile at the same time. May be wort it, may be not.

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• lvxferre@mander.xyz ⁨1⁩ ⁨day⁩ ago

  I kind of suspect they’re trying to use the tech for storage too because of the comparison with NAND.

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