Universal Flash Storage (UFS)

UFS Version 3.1

UFS is specifically tailored for mobile applications and computing systems requiring high performance and low power consumption. In January 2020, JEDEC published JESD220E UFS 3.1, which is an update to version 3.0 published in 2018.

Simplifying Design, Reducing System Cost & Improving Device Performance

JEDEC also offers five complementary standards:

  • JESD220-3 UFS High Performance Booster (HPB) Extension
  • JESD223D UFS Host Controller Interface (UFSHCI) version 3.0
  • JESD220-1A UFS Unified Memory Extension version 1.1
  • JESD223-1A UFS Host Controller Interface, supporting Unified Memory Extension version 1.1
  • JESD224 UFS (Test)

UFS Card Standard

JESD220-2A Universal Flash Storage (UFS) Card Extension Standard was updated in January 2018. Version 1.1 of this removable memory card standard standardizes functionality that aligns with UFS version 3.0.

Collaboration with the MIPI Alliance®

To achieve the highest performance and most power efficient data transport, JEDEC UFS leverages industry leading specifications from the MIPI® Alliance to form its Interconnect Layer. This collaboration continues with UFS version 3.1, which references the MIPI M-PHY® v4.1 physical layer specification and the MIPI UniPro® v1.8 transport layer specification.  

For more information about MIPI specifications related to UFS, visit: https://www.mipi.org/mipi-jedec/DocumentRequestWelcome.

Partnership with UFSA

JEDEC partners with the Universal Flash Storage Association (UFSA), which was created to support the widespread adoption and acceptance of the JEDEC UFS standard. UFSA’s primary mission includes the promotion of UFS technology and infrastructure by providing product compliance and UFS logo certification management. Through compliance testing UFSA provides valuable input back to JEDEC for future specification development. www.ufsa.org.

About UFS

UFS is an open standard, high-performance interface designed for use in applications where power consumption needs to be minimized, including mobile systems such as smartphones and tablets as well as automotive applications. Its high-speed serial interface and optimized protocol enable significant improvements in throughput and system performance. The prior version of the standard, UFS 3.0, introduced two features specifically for the automotive market: the ability to function at an extended temperature range (-40C, 105C) and refresh operation with added host control mechanism to improve device data reliability.