Device transfers data between USB3.0 and SATAII
Saelig
PL2771 bridge controller
The PL2771 single-chip Superspeed USB3.0 to SATAII-compliant bridge controller is designed to perform seamless data transfer between USB3.0 and SATAII devices.
Superspeed USB 3.0(5Gb/s) delivers 10 times the performance of Hi-Speed USB 2.0(480Mb/s), while offering compatibility with all USB-enabled PCs and peripheral devices - fully backward compatible to all USB 2.0 and USB 1.1 hosts.
PL2771 can operate under Superspeed, Hi-Speed and Full-Speed USB connections.
It also contains an internal embedded 8-bit microcontroller that can be used to support versatile system applications such as one-button backup, power control and other features for USB connection.
The PL2771 is implemented with a USB Mass Storage Class driver and the latest UASP driver.
Packaged as a 48-pin QFN or 64-pin LQFP device, the PL2771 uses a 30MHz reference clock and is hot-plug Serial ATA Rev.2.6 compliant.
Its ultra-low-power internal core is designed in 0.13um silicon and runs on 1.2V to keep power consumption to a minimum, although I/O lines operate at 3.3V.
12 multi-function general-purpose I/O (GPIO) pins can be programmed for USB-speed LED, button inputs or other special functions using the available software development kit.
Onboard firmware is upgradeable through the USB interface.
PL2771 also supports a PWM interface and a generic SPI/I2C master/slave interface.
The PL2771's internal data buffer optimises downstream and upstream data-transfer performance, and it supports greater than 2-Terabyte/4KB-sector hard drives with USB3.0/USB2.0/SATA power-saving management.
Target applications include: USB 3.0 external HDD/SSD/ODD, portable media players and SATA port multipliers.
A demonstration board is available for development purposes.
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