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USB 3.0-to-SATA controllers read at 265MB/s

Posted: 20 May 2011     Print Version  Bookmark and Share

Keywords:USB 3.0  storage controllers  direct-attached storage 

PLX Technology Inc. introduces the OXU3110 and OXU3111 direct-attached storage (DAS) SuperSpeed USB 3.0-to-SATA controllers designed for wired external consumer storage drives.

Compliant with the USB-IF SuperSpeed specification, the OXU3110 and OXU3111 DAS controllers are optimised for bus-powered applications offering superior performance, minimal footprint and low power use.

The OXU3110 DAS controller's features include fast read throughput at 265MB/s, a 6mm x 6mm QFN package, requiring only 479mW typical power. The device requires a minimum number of external components (only a single external crystal is needed). Embedded in the OXU3110 are a USB 3.0/2.0 PHY and device controller, SATA II PHY, internal voltage regulator, and masked program ROM supporting non-differentiated applications. The OXU3111 (521mW typical power) offers all the features of the OXU3110 and adds an integrated cipher engine, which provides advanced encryption and decryption capabilities in the hardware, enabling designers to deploy full disc encryption solutions at a faster rate.

The embedded USB 3.0 PHY in the OXU311x devices supports SuperSpeed, High Speed and Full Speed USB modes, using either bulk-only transport Mass Storage Class device protocol or the new USB Attached SCSI Protocol (UASP). The OXU311x's fast read and write transfers ensure that the maximum-possible host performance is maintained. The embedded 3GHz SATA host interfaces support the latest revisions of the SATA II specification. Interface speeds of 3GHz and 1.5GHz offer optimal performance with minimum latency for external SATA storage.

All PLX DAS controllers are supported by a comprehensive support package that includes evaluation boards, reference designs, software development kit (SDK) and PLX's exclusive ISIS-branded toolkit. The ISIS toolkit provides designers a self-contained virtual help desk with easy access to device and firmware configurations, thus simplifying encryption settings, RAID configuration, power settings, and HDD monitoring. Additionally, the ISIS toolkit includes an end-user tool named Gateway for simple administration of passwords in secure systems, as well as a single-click "in-field" firmware update utility.

Pricing for the OXU3110 and OXU3111 (with encryption) ranges from Rs.66.96 ($1.50) to Rs.89.29 ($2) in large volumes. Development kit samples are now available. Full production will start in June.

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