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JEDEC, a leading standard-setting organization, has introduced the fifth version of eMMC (embedded multimedia card) standard. The new specification doubles interface speed to 400MB/s and adds some other functionality. Leading producers of NAND flash memory – Samsung Electronics, Micron Technology and Toshiba Corp. – will support the new standard.

"Standardization synergies have been efficiently focused on speed enhancement features, as well as manufacturability and reliability improvements," said Marco Dallabora, Micron’s senior director of mobile technology.

eMMC 5.0 defines several new functionalities and enhancements for embedded mass-storage flash memory widely used in smartphones, tablets and other mobile devices. eMMC matches challenging performance targets required by the next generation of mobile systems by introducing an HS400 mode that offers additional improvement in terms of interface speed (up to 400 MB/s vs 200 MB/s in the prior version).

In response to requests from industry users, the new revision of the standard includes a field firmware update procedure which allows loading and installing a new version or a patch of the eMMC device controller firmware when the device itself is operational in the final system. In addition, Production State Awareness may be used during the production phase, and defines how to inform the device about specific phases such as content pre-loading, soldering, and integration in the final system.

"This critical evolution in the e.MMC standard will go a long way in helping to expand the market for high-end mobile devices with provisioning for cost-efficient production advancements, and functionality that allows users to enjoy exceptionally fast, high definition content with enhanced usability," said Jim Elliott, vice president of memory marketing at Samsung Semiconductor.

Tags: JEDEC, eMMC, Samsung, Toshiba, Micron, NAND, Flash

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