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Benefits or advantages of UFS Storage | UFS 2.0,2.1,3.0,3.1

This page covers benefits or advantages of UFS Storage devices with versions UFS 2.0, UFS 2.1, UFS 3.0 and UFS 3.1. It mentions advantages of UFS with respect to speed, performance and power consumption.

What is UFS Storage?

Introduction:
e-MMC had limitations of interface speed due to its bus architecture. It has half duplex and 8 I/Os in its interface.

JEDEC Solid State Technology Association has introduced specifications of various Universal Flash Storage (UFS) versions. UFS (Universal Flash Storage) is the successor to e-MMC which supports full duplex serial interface. It has been used in mobile phones for storage with many benefits similar to SATA and SSD memory devices. UFS supports command queuing.

Toshiba was the first company to introduce and support UFS in order to enable chipset and OS vendors to develop interface ver 1.1. Qualcomm has already integrated UFS memory capabilities in its mobile SoCs. Samsung has already developed UFS storage devices with 32 GB, 64 GB, 256 GB and 512 GB capacity.

UFS Storage

There are various versions of UFS viz. 1.0, 1.1, 2.0, 2.1, 3.0 and 3.1 which support different speeds and IOPs (Input/Output operations) per sec. The specifications of UFS interfaces can be downloaded from JEDEC website.

Benefits or advantages of UFS Storage

Following are the benefits or advantages of UFS Storage:
➨It offers better data transfer time (i.e. latency) which is about 50% less compare to eMMC.
➨It offers low power consumption. Hence battery life of mobile devices will be longer with such memory storage types.
➨It offers greater speed (in Mbps) or bandwidth during data transfer between host and itself. This is almost three times compare to eMMC 5.1 version.
➨It supports more input/output operations per second (IOP/s) compare to eMMC of same size.
➨It uses serial interface which has less hardware complexity.
➨It uses full duplex topology and hence reading/writing can be done at the same time unlike e-MMC.
➨It supports command queuing. Hence host system can send series of both read and write commands to be operated on by UFS device while host system performs other tasks.
➨UFS devices are going to be used in large numbers in mobile products as network speeds are constantly increasing due to advancement in technologies.
➨UFS (with 6Gbps bandwidth) overcomes limitations of download time by slow memory through wifi or USB connection.

There are no specific drawbacks or disadvantages of UFS storage devices except the fact that latest version (e.g. UFS 3.1) is superior to the previous version (e.g. UFS 3.0) and so on. Refer difference between UFS2 vs UFS2.1 vs UFS3 vs UFS3.1 >>.



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