Showing posts with label flash drive. Show all posts
Showing posts with label flash drive. Show all posts

Thursday, 19 August 2010

NAND targets $1 per Gbyte for solid state drives

After two years of inflated prices, NAND flash memory at the end of 2010 is set to return to the key $1 per megabyte level considered a key threshold to drive adoption of Solid State Drives (SSD), but the cost reduction may come too late to help the struggling SSD market, according to the market research firm iSuppli.
Pricing for 1Gbyte of 3-bit per cell (TLC) NAND flash memory will average $1.20 for the entire fourth quarter and then decline to $1.00 at the end of the year. This represents a precipitous drop from the first quarter of 2010, when pricing for TLC averaged $1.80 per gigabyte and 2-bit per cell (MLC) flash was at $2.05, iSuppli memory pricing and forecasts indicate. It also marks the first time NAND flash pricing fell below the $1 threshold since the fourth quarter of 2008, when MLC pricing averaged 90 cents per gigabyte.
“When NAND pricing first fell below the $1 level at the end of 2008, many observers opined that its would sound the starting gun for solid state storage, allowing the technology to be cost competitive with Hard Disk Drives (HDDs) in PCs for the first time,” said Michael Yang, senior analyst for memory and storage at iSuppli. “However, during the following quarters, pricing rose because of strong demand and constrained production capacity, limiting the appeal of SSDs to low-volume servers in data centers and preventing widespread adoption in high-volume business and consumer PCs.”
Now with pricing back to the $1 level, the SSD market is ready to get back on track—or is it?
“With NAND pricing having returned to per-gigabyte pricing levels not seen in two years, there’s likely to be a lot of new buzz created for the solid state storage market at the end of 2010,” Yang said. “However, traditional HDDs gained a lot of additional ground during the past few years in terms of rising capacity and falling prices. In fact, HDDs have gained so much ground that SSDs now are in danger of never regaining their competitive footing.”
To compete successfully with HDDs, per-gigabyte pricing for NAND flash memory will have to decline to 40 cents by 2012, Yang opined. At such pricing, a 100Gbyte SSD could cost $50, when supporting electronics are added in. This would make solid state storage more appealing in consumer and corporate PCs.

A little TLC goes a long away
The second half of the year is almost certain to see shortages for MLC NAND. However, the complete opposite is the case with TLC as supply is sufficiently ahead of demand. Average capacity for TLC chips in SD (secure digital memory) cards and USB storage devices has stagnated during the past year. When combined with a slowing unit demand due to seasonality, ASPs for TLC chips are falling.

Reaching consumers
Low TLC prices are reaching consumers, which will aid in the purchase of higher-density products. iSuppli predicts the third quarter will see an uptick in growth for TLC NAND flash memory—driven by numerous holidays and back-to-school promotions.
To this end, tightly managed inventory levels, along with the closing of some factories, are paving the way for new price competition in the TLC segment, indicating a very real possibility that the magical $1 per gigabyte level might be reached by the end of 2010.
That being said, iSuppli believes these lowered component prices, paired with seasonal demand growth in 2010, will lead the overall industry for NAND flash memory to reach a record $5 billion in revenue in the third quarter.
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Monday, 28 September 2009

mSATA flash drive moves to 32nm


Toshiba Electronics Europe (TEE) has moved to 32nm NAND flash technology for a series of solid state drive (SSD) modules, increasing the capacity and lowering the cost for portable devices. The SG2 modules come in two types, one based on the new low-profile mini-SATA (mSATA) interface standard and the other a Half-Slim type, which uses a SATA connector. The drives are available in 30GB and 62GB modules. Volume production will start in October.
The two types of modules, each smaller than a business card, provide greater design flexibility and save space and cost compared to SSDs with hard disk drive form factors and cases. The 62GB module is only one seventh the volume and one eighth the weight of a 2.5-inch form factor SSD, and consumes half the power. With interface speeds up to 3Gbit/s, a maximum sequential read speed of 180MByte/s and a maximum sequential write speed of 70MByte/s,the modules will help bring the performance advantages of SSDs to notebooks, portable electronics and embedded systems. An advanced controller features a translation mode, which enables any drive configuration, and the drive supports 28-bit LBA (Logical Block Address) mode commands and 48-bit LBA mode commands. Multi-word DMA, Ultra-DMA modes and Advanced PIO commands are supported. The drives have an optional capability for secure Full Disk Encryption (FDE) backup that prevents unauthorized data access.
Industry analyst IDC expects mini-notebook shipments to grow at an annual average of around 15% from 2009 to 2013, and, PC manufacturers are looking for SSDs that combine small size with higher storage capacities and advanced performance.

The mSATA modules use the popular SATA interface in a small form factor module measuring 1.18 in. x 0.19 in. x 2 in. (30mm x 4.75mm x 50.95mm) that connects to the system board using the low profile SATA connector. Adaptive Power Mode and SATA Device Initiated Power Management typically reduce power consumption to less than half of the Read power level when the device is in idle, standby or sleep mode.
The Half-Slim SATA II modules feature a SATA connector, measure 1.18 in. x 0.19 in. x 2 in. (54mm x 4 mm x 39mm). The Half-Slim SATA II modules have the same SATA connector used on 2.5-inch HDD and SDD form factors. Thus, this smaller form factor can easily be used in applications designed to use 2.5-inch storage form factors. The Half Slim is also compliant to JEDEC SFF 8156.

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