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UFS NAND
Related Information
Toshiba Ushers in Universal Flash Storage (UFS)

UFS (Universal Flash Storage ) is designed to be the most advanced specification for embedded memory-based storage in mobile devices such as smart phones and tablet computers. The UFS standard represents an evolutionary progression of JEDEC standards in this field, and has been specifically tailored for mobile applications and computing systems requiring high performance and low power consumption. Enabling significant boosts in performance, UFS is intended to be the next generation of mobile mass storage after e-MMC™ (and is not backward compatible to e-MMC).

The e-MMC market size and momentum will likely mean that these two mobile embedded solutions will continue to be supported in parallel for some time, with UFS initially supporting the needs of applications demanding higher performance, and typically at higher densities, and e-MMC supporting the needs of applications driven to maintain the lowest cost.

UFS has a serial interface, which reduces the number of signal pins and can simplify routing; and supports full duplexing, enabling both reading and writing between the host processor and UFS device at the same time (as opposed to e-MMC which supports half duplexing, only allowing either reading or writing, but not both at the same time). This boosts overall system performance and enables a better user-experience by maximizing the performance of mobile devices.

Watch the Videos

 CES January 2014 - Toshiba Begins Delivery of UFS Technology

Toshiba has been a leader in UFS development since its inception and is currently sampling 64GB* density to enable chipset and OS

development to support this standard. Faster versions (Ver2.0) intended for mass production, will be introduced late 2013 across a greater breadth of densities.

 CES January 2014 - What's the Difference Between e-MMC and UFS?

 Embedded Memory: UFS vs e-MMC™

Latest Memory News
01-07-14 Toshiba Set to Introduce UFS Ver2.0 Solution in 2Q 2014

For more information, visit When Technology Moves, Toshiba Moves.

UFS vs e-MMC Key Features Comparison

Key Features e-MMC™ UFS (V2.0) Advantage UFS vs e-MMC
Max Interface Speed 200MB/s (Ver4.5)
400MB/s (Ver5.0)
720MB/s (HS-G2 x 2 Lane)
1,440MB/s (HS-G3 x 2 Lane)
UFS: Faster Interface
Multi Task Support Read or Write Read AND Write UFS: Improved System Performance
Queuing Commands from Host Packed Command Command Queuing UFS: Improved System Performance
Power Lower Idle/Sleep Power Better power efficiency
during read/write
e-MMC: Overall lower power
likely in most applications
Cost Lower Higher e-MMC: Price gap will decrease over time

Product density is identified based on the density of memory chip(s) within the Product, not the amount of memory capacity available for data storage by the end user. Consumer-usable capacity will be less due to overhead data areas, formatting, bad blocks, and other constraints, and may also vary based on the host device and application.

Read and write speed may vary depending on the read and write conditions, such as devices you use and file sizes you read and/or write.

e-MMC is a trademark of the MultiMediaCard Association. All other trademarks and tradenames held within are the properties of their respective holders.