Toshiba Touts New DDR Toggle Mode NAND

Toshiba this week announced that it has developed double data rate (DDR) Toggle Mode NAND flash memory for use in solid state drives (SSDs), and there's good reason you should care. According to Toshiba, its 32nm DDR Toggle Mode chips will significantly improve performance in both MLC- and SLC-based SSDs compared to conventional asynchronous NAND memory, while at the same time offer up lower power consumption over competing synchronous DDR NAND products.

Getting down the technical nitty gritty, Toshiba claims its new chips can shuffle data around at 133 megatransfers per second (MT/s), which is more than three times the 40MT/s of current generation SLC chips. A threefold increase is nothing to sneeze at, folks, and could render a good many currently-shipping SSDs obsolete, at least in SLC form.

Toshiba 32nm Toggle Mode Specifications

As Toshiba explains it, the asynchronous interface means there's no need for a clock signal, and that's how these chips consume less power with a simpler system design compared to synchronous NAND alternatives. Toshiba also says it managed to reduce crosstalk, a problem that typically creeps up at faster speeds.

"Scalability to future high-frequency operation is enabled as a result of the bi-directional data signal," Toshiba explains.

Toshiba didn't offer up any details on ship times, but did say it will have 32Gb (4GB), 64Gb (8GB), and 128Gb (16GB) capacity chips in SLC form, and 64Gb (8GB), 128Gb (16GB), and 256Gb (32GB) in MLC form.
Via:  Toshiba
infinityzen 4 years ago

So what this is saying is that SSD's built using these chips with a good controller will make the brand new SATA 6G instantly become the performance cap on the high end transfer numbers they can put out.

Super Dave 4 years ago

[quote user="News"]A threefold increase is nothing to sneeze at, folks, and could render a good many currently-shipping SSDs obsolete[/quote]

And THAT'S why I'm postponing my switch to SSD. No, wait, I forgot I'm waiting for the prices to come down!Big Smile

acarzt 4 years ago

I'm assuming those sizes are chips and not actual hard drives.... those would be ridiculously small SSDs lol

Eitherway I foresee 600MB/s transfer speeds with a single drive!

How exciting! I can imagine these will be outrageously expensive too.

rapid1 4 years ago

I was wondering when this would start happening. Then think about the fast that this basically moves Nand to DDR speeds, and consider the newest common memory on the market is DDR3 for standard memory, and DDR5 for video memory. On top of that DDR 3 while somewhat faster than DDR2 actually has a main benefit of operating slightly faster than DDR2, but doing so with less energy. Then DDR4 and DDR5 are pretty close to the same as that, with added heat related bonuses as well as efficiency for both (DDR3 and 5) and you see when and why SSD drives will become cheaper, and eventually become what mechanical drives are today.

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