日本語
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VIA Lab’s VL717 is a high performance, low power single chip USB 3.1 Gen2 to SATA 6GB/s bridge controller with PD sink mode support for USB type-C connector designed for new generation external storage devices. Its integrated in-house USB 3.1 Gen2 PHY enables VL717 to run in USB 3.1 Gen2, USB 3.1 Gen 1, High-Speed, and Full-Speed modes. Supporting USB mass storage class Bulk-Only Transport (BOT), VL717 based devices can work on Windows 10, Windows 8, Windows 7, Vista, XP, Mac OS X and various Linux kernels without additional driver. Besides Bulk-Only Transport, VL717 also support USB Attached SCSI Protocol (UASP) that allowing mass storage command queuing and out of order data transfers to further enhance read/write performance. Its integrated in-house SATA 6GB/s host controller can work with all SATA based storage devices and can connect at SATA 6GB/s, SATA 3GB/s, or SATA 1.5GB/s automatically. Built-in CC1/CC2 cable orientation detection circuits and two sets of USB signal pins, VL717 can support USB type-C receptacle natively with good signal integrity to enable USB-C cable flipping feature without any extra cost. VL717 also support Power Delivery sink mode that can check host power capability and ask host to source its maximum power. Built-in all required linear and switching voltage regulators, highly integrated VL717 work perfectly with single power input from USB 5V bus power to save customer BOM cost. Up to eight GPIO pins are available for push button, operation LEDs, device power down control, and other special usage. The SPI interface can support external flash for firmware upgrades or additional software enhancements. VL717 is available in QFN 48L (6x6x0.85 mm) green packages to fit small form-factor design. |
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