Overview
The TUSB9261-Q1, produced by Texas Instruments, is an ARM Cortex M3 microcontroller-based Universal Serial Bus (USB) 3.0 to Serial ATA (SATA) bridge. This device is designed to bridge SATA-compatible hard disk drives (HDD), solid state drives (SSD), and optical drives (OD) to a USB 3.0 bus. It supports both USB Attached SCSI Protocol (UASP) and USB Mass Storage Class Bulk-Only Transport (BOT), making it suitable for a wide range of mass storage applications. The TUSB9261-Q1 is qualified for automotive applications and meets AEC-Q100 standards with specific exceptions.
Key Specifications
| Parameter | Description |
|---|---|
| Package | 64-pin HTQFP (PAP) |
| Operating Temperature Range | -40°C to 85°C |
| USB Interface | Supports SS/HS/FS signaling, best-in-class adaptive equalizer |
| USB Class Support | UASP for HDD and SSD, BOT for optical drives and other SATA devices, USB HID |
| SATA Interface | Serial ATA Specification Revision 2.6, supports gen1 (1.5-Gbps) and gen2 (3.0-Gbps) |
| Clock Support | Integrated spread spectrum clock generation, supports 20, 25, 30, or 40 MHz |
| GPIOs | Up to 5 GPIOs for end-user configuration via HID |
| Debug Interface | Serial communications interface for debug (UART), JTAG interface for IEEE1149.1 and IEEE1149.6 boundary scan |
Key Features
- Integrated ARM Cortex M3 Core for customizable application code loaded from EEPROM via SPI interface
- Supports firmware update via USB using a TI-provided application
- USB bootability support and USB HID interface for GPIO control
- Hot plug support and compatibility with mass-storage devices per the ATA/ATAPI-8 specification
- Integrated spread spectrum clock generation enabling operation from a single low-cost crystal or clock oscillator
- Available in a fully RoHS compliant package (PAP)
- Two additional SPI port chip selects for peripheral connection
Applications
The TUSB9261-Q1 is ideal for various applications, including:
- Bridging SATA-compatible hard disk drives (HDD), solid state drives (SSD), and optical drives (OD) to a USB 3.0 bus
- Automotive infotainment systems, where it can support single SATA drives such as SSDs and HDDs
- Industrial and consumer electronics requiring reliable and high-speed data transfer between USB and SATA devices
Q & A
- What is the primary function of the TUSB9261-Q1?
The TUSB9261-Q1 is a USB 3.0 to SATA bridge, designed to connect SATA devices such as HDDs, SSDs, and optical drives to a USB 3.0 bus.
- What USB protocols does the TUSB9261-Q1 support?
The device supports USB Attached SCSI Protocol (UASP) and USB Mass Storage Class Bulk-Only Transport (BOT), as well as USB Human Interface Device (HID) for GPIO control.
- What are the supported SATA data rates?
The SATA interface supports gen1 (1.5-Gbps) and gen2 (3.0-Gbps) data rates.
- Is the TUSB9261-Q1 qualified for automotive applications?
Yes, the TUSB9261-Q1 is qualified for automotive applications and meets AEC-Q100 standards with specific exceptions.
- What is the operating temperature range of the TUSB9261-Q1?
The device operates over an industrial temperature range of -40°C to 85°C.
- How many GPIOs are available for end-user configuration?
Up to 5 GPIOs are available for end-user configuration via HID.
- Does the TUSB9261-Q1 support firmware updates via USB?
Yes, the device supports firmware updates via USB using a TI-provided application.
- What package type is the TUSB9261-Q1 available in?
The device is available in a 64-pin HTQFP package.
- Is the TUSB9261-Q1 RoHS compliant?
Yes, the device is available in a fully RoHS compliant package (PAP).
- What debug interfaces are supported by the TUSB9261-Q1?
The device supports a serial communications interface for debug (UART) and JTAG interface for IEEE1149.1 and IEEE1149.6 boundary scan.
