TUSB9261-Q1 Automotive 2nd Generation SuperSpeed USB 3.0 to Serial ATA Bridge | TI.com

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Automotive 2nd Generation SuperSpeed USB 3.0 to Serial ATA Bridge



The TUSB9261-Q1 is an ARM cortex M3 microcontroller based Universal Serial Bus (USB) 3.0 to Serial ATA (SATA) bridge. It provides the necessary hardware and firmware to implement a USB Attached SCSI Protocol (UASP) compliant mass storage device suitable for bridging SATA compatible hard disk drives (HDD) and solid state disk drives (SSD) to a USB 3.0 bus. The firmware also implements the mass storage class bulk-only transport (BOT) for bridging optical drives and other compatible SATA devices to the USB bus. In addition to UASP and BOT support,a USB human interface device (HID) interfaces is supported for control of the general purpose input/ouput (GPIO). The SATA interface supports gen1 (1.5-Gbps) and gen2 (3.0-Gbps) for cable lengths up to 2 meters.

The device is available in a 64-pin HTQFP package and is designed for operation over the industrial temperature range of –40°C to 85°C.


  • Qualified for Automotive Applications
  • AEC-Q100 Qualified with the Following Exceptions:
    • Device CDM ESD Classification Level C3
  • Ideal for bridging Serial ATA (SATA) Devices, Such
    as Hard Disk Drives (HDD), Solid State Drives (SSD),
    or Optical Drives (OD) to Universal Serial Bus (USB)
  • USB Interface
    • Integrated Transceiver Supports SS/HS/FS Signaling
    • Best in Class Adaptive Equalizer
      • Allows for Greater Jitter Tolerance in the Receiver
    • USB Class Support
      • USB Attached SCSI Protocol (UASP) for HDD and SSD
      • USB Mass Storage Class Bulk-Only Transport (BOT)
        Including Support for Error Conditions Per the
        13 Cases (Defined in the BOT Specification)
      • USB Bootability Support
      • USB Human Interface Device (HID)
    • Supports Firmware Update Via USB Using a TI Provided Application
  • SATA Interface
    • Serial ATA Specification Revision 2.6 Supporting gen1 and
      gen2 Data Rates
    • Supports hot plug
    • Supports Mass-Storage Devices Compatible with the ATA/ATAPI-8
  • Integrated ARM Cortex M3 Core
    • Customizable Application Code Loaded From EEPROM Via SPI Interface
    • Two Additional SPI Port Chip Selects for Peripheral Connection
    • Up to 5 GPIOs for End-User Configuration via HID
    • Serial Communications Interface for Debug (UART)
  • General Features
    • Integrated Spread Spectrum Clock Generation Enables Operation
      from a Single Low Cost Crystal or Clock Oscillator
      • Supports 20, 25, 30 or 40 MHz
    • JTAG Interface for IEEE1149.1 and IEEE1149.6 Boundary Scan
    • Available in a Fully RoHS Compliant Package (PAP)


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Part number Order Function USB speed (Mbps) Rating Supply voltage (V) Package Group Operating temperature range (C) Package size: mm2:W x L (PKG)
TUSB9261-Q1 Order now USB3     5000     Automotive     3.3
HTQFP | 64     -40 to 85     64HTQFP: 144 mm2: 12 x 12 (HTQFP | 64)    
TUSB9261 Order now USB3     5000     Catalog     3.3
HTQFP | 64     -40 to 85
0 to 70    
64HTQFP: 81 mm2: 9 x 9 (HTQFP | 64)