The JEDEC revealed the united statesCard 1.zero specification again in mid-2016, and shortly after that Samsung launched its UFS playing cards with 32, 64, 128, and 256 GB capacities. Within the meantime, neither Samsung nor every other maker of electronics has launched a tool supporting such playing cards. The scenario might change within the coming quarters as a minimum of two builders of controllers — JMicron and Silicon Movement — are about to launch their UFS to USB bridge options for card readers.
Silicon Movement already affords its shoppers the SM3350 USB three.1 – UFS 2.1 bridge (UFS Card 1.zero is part of the united states2.1 spec) in addition to the SM2750 and SM2752 UFS 2.1 gadget controllers required to construct UFS reminiscence playing cards and embedded storage options. The SM3350 continues to be not listed on Silicon Movement’s web site, however the firm says that its prospects can purchase the mentioned chips and construct playing cards and card readers for PCs or different units now. To show its level, SMI demonstrates two USB card readers for UFS playing cards. As well as, the corporate has varied UFS options for industrial/automotive purposes, however they’re past the scope of this information story.
Since SMI solely sells controllers, it’s uneasy to say when precise merchandise on their base shall be out there. In the meantime, the vital factor is that the chips are right here as a result of again in 2017 SMI didn’t supply these ICs (built-in circuits) in any respect.
Shifting on to JMicron. JMicron is prepping its JMS901 USB three.1 – UFS 2.1 bridge that can even help UHS-I for backward compatibility with SD playing cards to allow producers to construct common card readers. The corporate expects the controller to help sequential learn/write speeds of as much as 450 MB/s (due to the united states2.1 Gear3 interface) in addition to as much as 30Okay learn/write random IOPS.
JMicron doesn’t have the JMS901 silicon at hand simply but: at Computex the corporate demonstrated the challenge to pick out prospects and press utilizing a Xilinx Virtex-7 FPGA and customized PHY. JMicron expects to obtain the chip from the fab in July and if all goes nicely, the JMS901 shall be out there to JMicron’s prospects later this yr. Contemplating the truth that there’s nothing too complicated about this bridge, it’s doubtless that its very first revision will go into manufacturing.
Neither JMicron nor SMI discloses quotes for his or her UFS 2.1-supporting merchandise, however since we’re speaking about actually small consumer-grade chips, their costs should not alleged to be excessive. In the meantime, an enormous query is whether or not makers of PCs and different get to include UFS card readers contemplating the truth that there are not any mass-market smartphones or cameras that use such playing cards.
As reported, Samsung launched a lineup of UFS playing cards that provide a formidable sequential learn efficiency of as much as 530 MB/s and sequential write efficiency of as much as 170 MB/s. As for random efficiency, then Samsung spec'd its 256 GB card for 40,000 learn IOPS and 35,000 write IOPS for the 256GB model. Regardless of all of the potential benefits that UFS playing cards can carry, even Samsung doesn’t combine UFS card readers into its Galaxy smartphones which are bought in a whole lot of tens of millions of models. A launch of a Samsung smartphone with a UFS card reader may skyrocket adoption of just about any expertise, together with UFS, however we should look forward to one in every of such units.
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