UFS 2.0 Flash Memory

Samsung manufactures UFS-2.0 memory modules, that works much faster access to randomly distributed data blocks as the existing eMMC-technology. They may also into the next Galaxy S6.

EMMC Combi chips stuck in many smartphones and tablets: are like mini SSDs, the controller, firmware, and NAND Flash chips integrated in a compact housing. The eMMC interface has indeed significantly increased over the years and can transfer at eMMC 5.0 theoretically up to 400 MB/s, but is related with the ancient, parallel SD interface (SDIO).

New Flash modules with universal Flash storage (UFS) 2.0 to much more input / output operations per second (IOPS) create as eMMC Flash: Samsung promises for the propduzierten now in series UFS 2.0 flashes with 128 GB up to 19,000 IOPS reading and 14,000 IOPS in writing. This should correspond to the 2.7-or 12-fold typical eMMC components.

UFS but achieved higher IOPS rates with the same trick as about SATA SSDs: Command Queuing. Several requests arrive bundled the Flash controller can optimize the sequence perfectly parallel control of several internal chips. The crux of the matter: This works especially if several competing applications or threads competitively on the mass storage access. If only one application to randomly distributed addresses (random read/write), command queuing rarely brings a significant advantage.

Some SoCs with UFS

UFS physically opts for MIPI UniPro and the M-PHY – so the PCI-Express like technique, which is used also in the modular Google Smartphone ARA. Also the UHS-II technology of the fastest (micro) SD card works with similar serial procedures.

Still are so far only a few system-on-chip for smartphones and tablets with UFS-or UFS 2.0 ports on the market-at least 805 and 810 still hardly any UFS-2.0 support announced except the high end chips expected Qualcomm Snapdragon. According to rumors, a future Exynos 7 for the Galaxy S6 could also support UFS 2.0. Also, Toshiba will deliver fast UFS 2.0 memory.

Gallery

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