Second generation USB 3.0-SATA3 bridge SoC offers reduced BOM cost benefits
The µPD720231 enables effective multi-gigabit per second data transfer between a USB 3.0 host system and a SATA device used in external USB hard drives and solid state drives (SSD).
USB 3.0 technology delivers more than 10 times the data transfer performance of the commonly used USB 2.0 peripheral interface. As the demand for media storage capacities and data transfer speed increases, the µPD720231 offers a fundamental building block to create an improved user experience for external USB storage.
The new µPD720231 device was developed to respond to the need to reduce the number of components and to simplify printed circuit board (PCB) controller design.
Through integration, the new µPD720231 USB 3.0-SATA3 bridge SoC has reduced the number of components by 40 percent compared with the number of other commercial devices with equal functions. The µPD720231 features an embedded voltage regulator and power-on reset circuit. The new product can store firmware in SATA devices such as hard discs and SSD and can also omit external serial flash ROM.
The µPD720231 USB 3.0-SATA3 bridge SoC supports SuperSpeed USB transfer speeds of up to 5 Gbps—as well as the SATA Revision 3.0 6 Gbps bit rate achieving maximum data transfer performance of USB 3.0. Users can utilize actual USB 3.0 transfer rate, free from the transfer speed of the SATA side.
Renesas’ free UASP driver runs not only on the Renesas µPD720200 USB 3.0 host controller and its follow-on products, the µPD720200A, µPD720201 and µPD720202, but also on major chip sets with an embedded USB 3.0 host controller, enabling higher data transfer speed on Windows XP/Vista/7. Renesas licenses this driver from MediaLogic,corp.
The new µPD720231 device is compatible with Microsoft UASP drivers on Windows 8, and does not depend on PC platform or OSs and can work in any major environment with higher data transfer speed by UASP.
The µPD720231 bridge adopts the same proven PHY core used in these host controllers, eliminating the unknown when connecting to USB 3.0 hosts.
The new device can control BD/DVD drives by supporting ATAPI command and facilitates design of BD/DVD drives with USB interface.
Mass production started in February 2013 and is expected to reach a scale of 500,000 units per month in June 2013.
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