Universal Flash Storage

Universal Flash Storage (UFS) is a common flash storage specification for digital cameras, mobile phones and consumer electronic devices.[1][2] It aims to bring higher data transfer speed and increased reliability to flash memory storage, while reducing market confusion and removing the need for different adapters for different types of card.[3]

The proposed specification is supported by leading firms in the consumer electronics industry such as Nokia, Sony Ericsson, Texas Instruments, STMicroelectronics, Samsung, Micron, SK Hynix.[4] UFS is positioned as a replacement for eMMCs and SD cards. The electrical interface for UFS uses the M-PHY,[5] developed by the MIPI Alliance, a high speed serial interface targeting 2.9 Gbps (gigabits per second) per lane with up-scalability to 5.8 Gbps per lane.[6][7] UFS implements a full-duplex serial LVDS SATA interface that scales better to higher bandwidths than the 8-lane parallel interface of eMMCs. Unlike eMMC, Universal Flash Storage is based on the SCSI architectural model and supports Native Command Queuing.[8][9]

The standard is developed by, and available from, the JEDEC Solid State Technology Association. In September 2013, JEDEC published JESD220B UFS 2.0 (update to UFS v1.1 standard published in June 2012). JESD220B Universal Flash Storage v2.0 offers increased link bandwidth for performance improvement, a security features extension and additional power saving features over the UFS v1.1.[10]

The Linux kernel supports UFS.[11]

See also

References

  1. ↑ "Nokia, Others Back Mobile Memory Standard". PC World. Archived from the original on 9 February 2008.
  2. ↑ JEDEC Announces Publication of Universal Flash Storage (UFS) Standard
  3. ↑ Malykhina, Elena (14 September 2007). "Mobile Tech Companies Work On Flash Memory Standard". Information Week. Retrieved 19 September 2012.
  4. ↑ Modine, Austin (14 September 2007). "Flash memory makers propose common card". The Channel. Retrieved 19 September 2012.
  5. ↑ http://www.mipi.org/about-mipi/industry-associations/jedec-solid-state-technology-association/
  6. ↑ http://www.mipi.org/
  7. ↑ http://toshiba.semicon-storage.com/eu/application/ufs.html
  8. ↑ http://global.samsungtomorrow.com/emmc-to-ufs-how-nand-memory-for-mobile-products-is-evolving/
  9. ↑ http://www.design-reuse.com/articles/30845/universal-flash-storage-mobilize-your-data.html
  10. ↑ http://www.jedec.org/standards-documents/focus/flash/universal-flash-storage-ufs
  11. ↑ https://www.kernel.org/doc/Documentation/scsi/ufs.txt

External links

Specifications


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