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JEDEC Announces Publication of Universal Flash Storage (UFS) Standard

ARLINGTON, Va. Feb. 24, 2011 JEDEC

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M-PHY UniPro(SM)

MIPI’s M-PHY and UniPro specifications are optimized for mobile applications, and are designed from the ground up for efficient power management in mobile devices, including enabling efficient transitions between the active and power save modes. Combined with a low active power level and a near-zero idle power level, UFS offers the promise for significant reductions in device power consumption.

The UFS standard adopts the well-known SCSI Architecture Model and command protocols supporting multiple commands with command queuing features and enabling a multi-thread programming paradigm. This differs from conventional flash-based memory cards and embedded flash solutions which process one command at a time, limiting random read/write access performance. In addition, a forthcoming complementary UFS Host Controller Interface (HCI) specification will allow system designers greater flexibility by simplifying the involvement of the host processor in the operation of the flash storage subsystem. The UFS HCI specification and the adoption of SCSI will provide a well-known software programming model and enable wider market adoption.

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Joel Huloux, Chairman of the MIPI Alliance Board of Directors, said: "MIPI is pleased to have collaborated with JEDEC on the inclusion of M-PHY and UniPro specifications as the interconnect layer for UFS. Together, these standards represent a revolutionary advancement for future mobile device performance."

In addition to UFS development work within JEDEC, some major participants have founded a new organization, the Universal Flash Storage Association (UFSA), to develop an ecosystem and support environment for UFS devices and host applications.

Additional Resources

Industry Quotes in Support of UFS


MIPI® Alliance and UniPro(SM) are marks of MIPI Alliance, Inc.


Emily Desjardins


[email protected]  

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