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Texas Instruments TUSB9261IPAPRQ1
- Part No.:
- TUSB9261IPAPRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 64-PowerTQFP
- Datasheet:
-
TUSB9261IPAPRQ1.pdf
- Description:
- IC INTFACE SPECIALIZED 64HTQFP
- Quantity:
- Payment:
- Shipping:
Inventory:988
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Product details
Overview
TUSB9261IPAPRQ1 from Texas Instruments is an AEC-Q100 qualified USB 3.0 to SATA bridge IC integrating an ARM Cortex-M3 microcontroller, supporting UASP and BOT protocols for HDD/SSD connectivity, with SATA Gen II (3.0 Gbps), SuperSpeed USB (5 Gbps), and industrial temperature range (–40°C to +85°C) operation in automotive infotainment and external storage systems.
For engineers reviewing the TUSB9261IPAPRQ1 datasheet, TUSB9261IPAPRQ1 pinout, TUSB9261IPAPRQ1 application, or TUSB9261IPAPRQ1 equivalent, key selection considerations include its dual-protocol USB mass storage support, integrated firmware-configurable GPIO/HID interface, SATA hot-plug capability, and automotive-grade reliability with spread-spectrum clocking and adaptive equalization.
Technical Context
The TUSB9261IPAPRQ1 implements a full USB 3.0 device controller with SS/HS/FS PHYs and a SATA II AHCI host bus adapter, enabling protocol translation between USB Attached SCSI (UASP) and ATA/ATAPI-8 compliant storage devices. Its ARM Cortex-M3 core executes boot code from SPI flash and manages real-time SATA link training, OOB negotiation, and TRB-based data path management.
It supports dynamic power state transitions (U0–U3), configurable GPIO mapping via HID, and dual-clock source options (20/25/30/40 MHz crystal or oscillator) with internal PLL multiplication. The device uses separate 1.1-V digital, 3.3-V I/O, and 3.3-V analog power domains, with JTAG and UART debug interfaces enabled by default firmware.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Interface | USB 3.0 device controller with SS/HS/FS PHYs; enables backward-compatible connection to USB 2.0 hosts and full-speed enumeration when SS fails. |
| SATA Interface | SATA II (Gen 1/Gen 2) at 1.5/3.0 Gbps; supports hot-plug, NCQ, and AHCI-compliant host-side signaling for HDD/SSD/OD. |
| Protocol Support | USB Attached SCSI Protocol (UASP) as primary interface; MSC Bulk-Only Transport (BOT) as fallback; includes full 13-case error handling per BOT spec. |
| Core Processor | ARM Cortex-M3 microcontroller with 64 kB ROM boot loader and 80 kB RAM; executes TI-provided firmware for HID-based configuration and firmware updates. |
| Operating Temperature | –40°C to +85°C ambient; qualified per AEC-Q100 Grade 2 for automotive console, convenience port, and embedded host applications. |
| Power Supply | Three-rail operation: VDD = 1.1 V ±5%, VDD33/VDDA33 = 3.3 V ±10%; no strict sequencing required but GRSTz must be held ≥2 ms after supplies stabilize. |
| Clock Input | 20/25/30/40 MHz crystal or oscillator; FREQSEL[1:0] pins configure PLL multiplier; supports spread-spectrum clock generation from single low-cost source. |
Pinout & Package
The TUSB9261IPAPRQ1 is housed in a 64-pin HTQFP (PAP) package with exposed thermal pad, RoHS-compliant NiPdAu finish, and MSL Level-3 moisture sensitivity rating (260°C peak reflow, 168-hour floor life).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GRSTz (Pin 4) | Global reset input | Active-low synchronous reset that forces all internal registers to default states; must be held low ≥2 ms after power stabilization. |
| USB_SSTXP/M (Pins 43/42) | SuperSpeed USB TX differential pair | Drives 5-Gbps USB 3.0 upstream data; requires controlled 90-Ω differential impedance routing and AC coupling capacitors. |
| USB_SSRXP/M (Pins 46/45) | SuperSpeed USB RX differential pair | Receives 5-Gbps USB 3.0 upstream data; incorporates adaptive equalizer to tolerate up to 12-dB channel loss at 2.5 GHz. |
| SATA_TXP/M (Pins 57/56) | SATA transmitter differential pair | Drives 1.5/3.0-Gbps SATA signals; default TI firmware swaps TXP/TXM pins for PCB routing ease-verify against SLLU139 reference design. |
| SATA_RXP/M (Pins 60/59) | SATA receiver differential pair | Receives SATA signals from HDD/SSD; supports hot-plug detection via OOB signaling and link speed negotiation. |
| FREQSEL[1:0] (Pins 31/30) | Frequency select inputs | Configure PLL multiplier for 20/25/30/40 MHz clock sources; encoded as binary 00–11 with internal pull-ups. |
| GPIO[0:11]/UART/PWM (Pins 2–16, 20–23, 27–29) | Configurable I/O | 12 GPIOs with programmable direction/pull; UART (GPIO8/9), PWM (PWM0/1), and HID-mapped control for LED status, push-button input, and power fault monitoring. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 qualification | Grade 2 automotive reliability with CDM ESD Class C3 (450 V on USB_R1, 500 V elsewhere), validated for console and convenience port use. |
| Integrated UASP + BOT stack | Enables high-throughput SSD access via UASP (reduced latency, command queuing) while maintaining BOT compatibility for optical drives and legacy OS support. |
| HID-based firmware update | Allows field firmware upgrades over USB without external programmer; uses TI-provided application to load images via HID interface. |
| Configurable GPIO mapping | 12 GPIOs assigned to disk activity (PWM0), heartbeat (PWM1), SuperSpeed status (GPIO7), suspend indication (GPIO2), and remote wake (GPIO3) per default firmware. |
| Spread-spectrum clocking | Reduces EMI emissions by modulating USB/SATA clock frequency; enables compliance with CISPR 25 Class 5 automotive EMC requirements using single low-cost crystal. |
Applications
| Automotive Infotainment Console | External HDD/SSD Dock |
|---|---|
Use Scenario: Integration of SATA-based storage into vehicle head units for media playback, navigation map updates, and driver-assist data logging. IC Role / Device Role / Timing Role: USB 3.0 to SATA bridge providing UASP-enabled high-bandwidth, low-latency access to internal or docked SSDs while maintaining BOT fallback for legacy firmware. Use Value: Enables seamless plug-and-play storage expansion in automotive environments with AEC-Q100–qualified thermal and ESD robustness across –40°C to +85°C. | Use Scenario: Desktop or portable enclosure converting SATA HDDs/SSDs into USB 3.0–accessible external drives for backup, media editing, or archival. IC Role / Device Role / Timing Role: Protocol translator managing USB enumeration, SATA link training, and TRB-based data movement between host and storage device. Use Value: Delivers near-native SATA performance via UASP (vs. ~30% lower throughput with BOT), with integrated firmware eliminating need for custom driver development. |
| HDD-Based Portable Media Player | Optical Drive Adapter |
Use Scenario: Compact handheld device using 2.5-inch HDD for high-capacity music/video storage with USB host connectivity. IC Role / Device Role / Timing Role: Mass storage bridge supporting BOT transport and full 13-case error handling for reliable file system operations on FAT32/exFAT volumes. Use Value: Provides certified USB mass storage class compliance for plug-and-play OS recognition (Windows/macOS/Linux) without vendor-specific drivers. | Use Scenario: Legacy DVD/Blu-ray drive repurposed as USB-accessible optical media reader in modern laptops lacking native SATA ports. IC Role / Device Role / Timing Role: SATA-to-USB converter implementing BOT transport layer with optical drive-specific command translation and error recovery. Use Value: Extends lifespan of optical drives by enabling USB 3.0 connectivity with full CD/DVD/BD read support and bootability per USB Mass Storage Specification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB-to-SATA bridge applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ASM1083-ABZQ | PCIe-to-PCI bridge controller; lacks integrated USB/SATA logic, requires external USB 3.0 host controller and SATA controller ICs. | Designed for PCIe add-in cards, not direct USB-to-SATA conversion; no UASP/BOT firmware stack or ARM core. | Select only if building custom PCIe-based docking station with discrete USB and SATA controllers. |
| TUSB9261IPAPQ1 | Same die as TUSB9261IPAPRQ1 but in 160-unit tray packaging; identical electrical, thermal, and functional specifications. | No application difference; both qualified for automotive use and share identical firmware, pinout, and thermal profile. | Choose TUSB9261IPAPQ1 for low-volume prototyping or small-batch builds requiring tray delivery. |
Compared with ASM1083-ABZQ, TUSB9261IPAPRQ1 delivers turnkey USB-to-SATA functionality with integrated firmware and automotive qualification, whereas ASM1083-ABZQ requires multi-chip implementation and lacks UASP support. Compared with TUSB9261IPAPQ1, the only distinction is packaging format-both are functionally identical and interchangeable in design.
Availability
TUSB9261IPAPRQ1 is available at Aetrix Electronics and suitable for automotive infotainment consoles, external HDD/SSD docks, and portable media players requiring stable component supply, long-term lifecycle support, and AEC-Q100–compliant sourcing.
Supply support for TUSB9261IPAPRQ1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for automotive, industrial, and personal electronics markets.
The TUSB9261-Q1 product line was designed specifically to enable automotive-grade USB 3.0 connectivity to SATA storage devices, addressing requirements for UASP performance, AEC-Q100 reliability, and firmware-upgradable functionality in console and convenience port applications.
FAQ
What is the primary function of the TUSB9261IPAPRQ1?
The TUSB9261IPAPRQ1 is a USB 3.0 to SATA bridge IC that translates between USB Attached SCSI Protocol (UASP) and SATA II (1.5/3.0 Gbps) interfaces, enabling HDDs, SSDs, and optical drives to connect to USB hosts. It integrates an ARM Cortex-M3 microcontroller, USB device controller, SATA AHCI HBA, and TI-provided firmware supporting both UASP and BOT transport layers. This makes TUSB9261IPAPRQ1 ideal for automotive infotainment and external storage applications requiring certified automotive reliability.
Does the TUSB9261IPAPRQ1 support USB 2.0 fallback operation?
Yes, the TUSB9261IPAPRQ1 supports automatic USB 2.0 fallback. When SuperSpeed USB connection fails during enumeration, it disables SS signaling and enables DP/DM pull-ups to negotiate High-Speed (480 Mbps) or Full-Speed (12 Mbps) mode based on host capability. The same firmware and descriptors remain active, ensuring seamless BOT operation regardless of negotiated speed-critical for backward compatibility in mixed-USB-environment automotive consoles where TUSB9261IPAPRQ1 may connect to older hubs or hosts.
What SATA features does the TUSB9261IPAPRQ1 implement?
The TUSB9261IPAPRQ1 implements SATA II (Gen 1/Gen 2) at 1.5/3.0 Gbps with full AHCI host bus adapter functionality, including hot-plug detection, OOB signaling, link speed negotiation, and native command queuing (NCQ) support for compatible HDDs/SSDs. It complies with Serial ATA Specification Revision 2.6 and ATA/ATAPI-8, enabling direct attachment of standard 2.5-inch or 3.5-inch drives. The TUSB9261IPAPRQ1 also supports SATA power management states (Partial/Slumber) and reports device capabilities to the USB host via UASP inquiry commands.
How is firmware updated on the TUSB9261IPAPRQ1?
Firmware on the TUSB9261IPAPRQ1 is updated via its built-in USB Human Interface Device (HID) interface. Using TI's provided PC application, users can load new firmware images over USB without external programmers. The process begins after reset when no valid SPI flash image is detected-the device enters HID mode and waits for host-initiated firmware upload. Once loaded, the new firmware resides in RAM and persists until next power cycle unless written to external SPI flash. This mechanism ensures field-upgradability of TUSB9261IPAPRQ1 in deployed automotive or consumer systems.
What are the power supply requirements for the TUSB9261IPAPRQ1?
The TUSB9261IPAPRQ1 requires three independent supply rails: VDD = 1.1 V ±5% (core digital), VDD33 = 3.3 V ±10% (I/O), and VDDA33 = 3.3 V ±10% (analog). No strict power sequencing is mandated, but GRSTz must be held low ≥2 ms after all supplies reach regulation. Typical active current draw is 291 mA on VDD11 and 65 mA on VDD33 during SuperSpeed-to-SSD transfers. The device includes internal LDOs and supports spread-spectrum clocking to reduce EMI, making TUSB9261IPAPRQ1 suitable for noise-sensitive automotive power domains.
TUSB9261IPAPRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 64-PowerTQFP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- HDD, CD, DVD Drive
- Interface:
- -
- Voltage - Supply:
- 1.1V, 3.3V
- Supplier Device Package:
- 64-HTQFP (10x10)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
TUSB9261IPAPRQ1 FAQ
1.How can I place an order for TUSB9261IPAPRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB9261IPAPRQ1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for TUSB9261IPAPRQ1 reliable?
The price and inventory of TUSB9261IPAPRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB9261IPAPRQ1 is usually 5 days.
3.What payment methods are accepted for TUSB9261IPAPRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB9261IPAPRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB9261IPAPRQ1?
TUSB9261IPAPRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB9261IPAPRQ1 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for TUSB9261IPAPRQ1?
For technical support, including TUSB9261IPAPRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB9261IPAPRQ1 requirements.
6.How does Aetrix verify that TUSB9261IPAPRQ1 is sourced from the original manufacturer or authorized distributors?
All TUSB9261IPAPRQ1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TUSB9261IPAPRQ1 meets industry standards.
7.What is the process for return or replacement of TUSB9261IPAPRQ1?
All TUSB9261IPAPRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TUSB9261IPAPRQ1, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The TUSB9261IPAPRQ1 part is unused and in its original packaging.
Return procedure for TUSB9261IPAPRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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