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Software advances flash memories' capacity

Posted: 21 Aug 2008 ?? ?Print Version ?Bookmark and Share

Keywords:NAND? memory? flash? smart phone?

Samsung Electronics Co. Ltd has released software that helps in improving the ability of its proprietary embedded flash memories such as OneNAND, Flex-OneNAND and moviNAND in smart phones, when used with mobile OS like Windows Mobile, Symbian, Linux, and real-time OS in general.

The company's software optimizes data transactions within its memory chips as they interact with the OS. "The new file system/flash driver combination, when working with any of the memory chips and the OS, provides faster booting, downloading and searching," Samsung said. This results in improving multimedia intensive operations common in smart phones, third-generation phones, digital still cameras, digital camcorders, memory cards, and digital TVs.

Samsung's embedded-flash software consists of several file systems and supportive flash drivers. The file systems, UniFS, PocketFS and RFS, execute typical file operations like creating, removing, reading and writing files. The flash drivers such as UniStore, PocketStore, XSR and FSR prolong the CE device's lifetime by wear-leveling and bad-block replacing, as well as converting file system requests into low-level flash operations including programming, reading and erasing. Samsung provides a version of its flash-optimized software for each of the major mobile OS.

Samsung's OneNAND has capacities ranging from 256Mbit to 2Gbit. Earlier this year, Flex-OneNAND, a single-die memory, was released. MoviNAND, introduced in 2006, combines a MultiMediaCard controller with NAND to simplify system design requirements for embedded nonvolatile storage in data-intensive multimedia handsets.

"The new software, which significantly upgrades performance of our embedded memory solutions, is expected to make OneNAND and other high-performance, high-density memory solutions such as the 16Gbit moviNAND even more desirable for advanced handsets, speeding the adoption rate of Samsung's embedded memory solutions," said Gerd Schauss, director of memory marketing for Samsung Semiconductor Europe.

- Peter Clarke
EE Times Europe

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