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4GB embedded storage device to replace micro hard drives

Posted: 04 Oct 2005 ?? ?Print Version ?Bookmark and Share

Keywords:sandisk? inand? nand flash? sdinab-256? trustedflash?

SanDisk Corp.'s iNAND is a small, high-speed NAND flash storage device that the company is touting as an alternative to micro hard drives in mobile applications.

The embedded storage device employs the company's TrustedFlash technology that will enable consumers to buy premium music, movies and games on flash memory cards for use interchangeably in mobile phones, laptop computers, PDAs and other portable devices.

iNAND combines the high-speed NAND flash memory with a serial controller in a single device. The iNAND controller saves host system CPU and RAM buffering and handles defect management and error correction code (ECC) functions. iNAND is designed to work in conjunction with a removable card slot.

"Embedded flash has quickly become a strong alternative to micro hard drives in consumer electronics products due to its decreasing cost-per-megabyte and increasing capacity points," said Jeff Ellerbruch, director of consumer OEM marketing at SanDisk, in a statement. "In addition, solid-state flash memory has many other advantages over rotating mechanical hard drives that include high performance, much lower power consumption, increased durability and significantly smaller size and weight."

By stacking four 8Gb NAND/MLC flash memory chips and an integrated controller chip in a single thin, fine-pitched ball grid array (TFBGA) package, the device offers 4GB of capacity. The package measures 12-by-18-by-1.4mm, or approximately 4 percent of the volume occupied by a micro hard drive. iNAND will be available in capacities ranging from 256MB to 4GB. SanDisk's latest embedded storage device also features 5MBps write and 9MBps read speeds.

iNAND has a consistent pinout/footprint across all capacity points to make it easier for the designer to upgrade a system. Capacity options for the host device can be decided at the last stage of manufacturing and different product versions can be yielded from a basic design. Software architecture changes are not required to expand iNAND capacity.

The SDINab-256 embedded flash memory device with 256MB of capacity, and the SDINab-2048 at 2GB will be available in October 2005. A 512MB part, the SDINab-512, will be available in January 2006. The SDINab-1024 at 1GB will be available in November. And a 4GB device, the SDINab-4096, will be available in March 2006.

Product samples are already available. Pricing for 2GB iNAND devices is $95 in 10,000-lot quantities.

- Ismini Scouras


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