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Texas Instruments TUSB8041IRGCR
- Part No.:
- TUSB8041IRGCR
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
TUSB8041IRGCR.pdf
- Description:
- IC HUB CONTROLLER USB 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,299
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Product details
Overview
TUSB8041IRGCR from Texas Instruments is a four-port USB 3.0 hub IC supporting simultaneous SuperSpeed (5 Gbps), high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) downstream connectivity. It features Multi-Transaction Translator (MTT) architecture with four independent transaction translators, per-port/ganged power switching, and integrated battery charging support (CDP/DCP/Divider Mode). It serves as the central USB expansion controller in docking stations and embedded host systems requiring backward-compatible multi-speed port aggregation.
For engineers reviewing the TUSB8041IRGCR datasheet, TUSB8041IRGCR pinout, TUSB8041IRGCR application, or TUSB8041IRGCR equivalent, this page delivers verified electrical specifications, validated 64-pin VQFN (RGC) package mapping, confirmed USB 3.0/2.0 dual-mode operation, real-world battery charging implementation details, and two technically documented alternative hub ICs for system-level design validation and supply chain continuity.
Technical Context
The TUSB8041IRGCR implements a true MTT hub architecture with four asynchronous endpoint buffers per transaction translator, enabling concurrent high-bandwidth transfers across all downstream ports without bandwidth contention. Its upstream port dynamically negotiates SuperSpeed, high-speed, or full/low-speed modes based on connected host capability-disabling higher-speed lanes when upstream link lacks support.
Power management is implemented via configurable PWRCTL[4:1]/BATEN[4:1] pins with selectable active-high/active-low polarity (PWRCTL_POL), and over-current detection inputs (OVERCUR[4:1]z) tied to external power switches. Battery charging mode selection (CDP/DCP/Divider) is determined at reset de-assertion by strap pin states and register configuration, not runtime negotiation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed Support | SuperSpeed (5 Gbps), high-speed (480 Mbps), full-speed (12 Mbps), low-speed (1.5 Mbps) - enables mixed-device ecosystems on single hub |
| Port Count | 1 upstream + 4 downstream ports - provides scalable expansion without cascading latency penalties |
| Transaction Translators | 4 independent MTT units - eliminates bandwidth sharing between downstream ports during concurrent high-speed transfers |
| Power Switch Control | Per-port or ganged via PWRCTL[4:1] pins - supports individual port power cycling and coordinated shutdown for over-current events |
| Battery Charging Modes | CDP (upstream-connected), DCP (upstream-unconnected), Divider Mode - complies with USB BC 1.2 and YD/T 1591-2009 for mobile device charging |
| Package | 64-pin VQFN (RGC), 9.0 mm × 9.0 mm - surface-mount footprint compatible with automated PCB assembly and thermal pad grounding |
| Supply Voltages | VDD = 0.99–1.26 V (core), VDD33 = 3.0–3.6 V (I/O) - requires dual-rail power delivery with controlled ramp rates (0.2–100 ms) |
Pinout & Package
64-pin VQFN (RGC) package with exposed thermal pad (VSS) requiring solder connection to PCB ground plane for thermal and EMI performance. Pin pitch: 0.5 mm. Body size: 9.0 mm × 9.0 mm.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| USB_SSTXP_UP / USB_SSTXM_UP | Upstream SuperSpeed differential transmitter | Drives 5-Gbps differential signals to host controller; requires 85-Ω controlled impedance routing |
| USB_SSRXP_UP / USB_SSRXM_UP | Upstream SuperSpeed differential receiver | Accepts 5-Gbps differential signals from host; includes built-in equalization for signal integrity |
| PWRCTL1–PWRCTL4 / BATEN1–BATEN4 | Downstream port power control & battery enable | Configurable active-high/low outputs controlling external load switches; sampled at reset for charging mode setup |
| OVERCUR1z–OVERCUR4z | Downstream port over-current sense inputs | Active-low open-drain inputs monitoring external switch fault flags; asserted during current-limit events |
| SCL/SMBCLK & SDA/SMBDAT | I²C/SMBus interface | Configurable dual-mode serial bus for EEPROM programming or runtime register access (VID/PID/string customization) |
| GRSTz | Global reset input | Asynchronous active-low reset that forces all internal registers to default state; requires ≥3 ms hold after power stabilization |
Key Features
| Feature | Design Value |
|---|---|
| Multi-Transaction Translator (MTT) Hub | Four independent TT engines eliminate bandwidth contention between downstream ports during concurrent high-speed transfers |
| USB Battery Charging Support | Hardware-accelerated CDP/DCP/Divider Mode detection enables compliant charging without host software intervention |
| Flexible Configuration Interface | OTP ROM, I²C EEPROM, or SMBus slave interface allows field-programmable VID/PID, port settings, and custom strings |
| Dual-Speed Upstream Negotiation | Automatic fallback from SuperSpeed to high-speed or full-speed upstream links preserves functionality in legacy host environments |
| 128-bit UUID Provisioning | Factory-assigned unique identifier enables secure device authentication and firmware update tracking in managed systems |
Applications
| Desktop Docking Station | Industrial Monitor Hub |
|---|---|
Use Scenario: A compact desktop dock connects laptop USB-C/Thunderbolt port to multiple peripherals including SSD, webcam, keyboard, and mouse. IC Role / Device Role: TUSB8041IRGCR acts as the primary USB 3.0 hub controller, managing concurrent SuperSpeed storage traffic and high-speed HID/video streams. Use Value: MTT architecture prevents bandwidth starvation of SSD when webcam streams concurrently; CDP mode enables fast charging of connected smartphones. |
Use Scenario: An industrial-grade monitor integrates USB 3.0 hub functionality to support peripheral attachment (barcode scanner, flash drive) alongside display data. IC Role / Device Role: TUSB8041IRGCR serves as embedded hub IC with ganged power control, enabling unified power management for all downstream ports. Use Value: Ganged power switching simplifies BOM by eliminating four discrete load switches; thermal pad ensures stable operation in sealed enclosures. |
| Set-Top Box Expansion | Embedded Medical Console |
Use Scenario: A premium set-top box adds USB 3.0 ports for external HDD recording and firmware updates via flash drive. IC Role / Device Role: TUSB8041IRGCR provides backward-compatible USB 2.0/3.0 support while handling both bulk storage and control-class devices. Use Value: Automatic mode detects unconnected upstream and enables DCP charging for remote controls or accessories without host coordination. |
Use Scenario: A medical imaging console requires reliable, ESD-hardened USB expansion for diagnostic tools and patient data transfer devices. IC Role / Device Role: TUSB8041IRGCR operates as certified USB hub with ±2000-V HBM ESD protection and junction temperature monitoring up to 105°C. Use Value: RθJCbot = 1.0°C/W thermal resistance enables direct thermal coupling to metal chassis, meeting IEC 60601-1 enclosure cooling requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 3.0 hub applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| USB3503A-AEZG | 3-port USB 3.0 hub with integrated USB 2.0 PHY; no native SuperSpeed receiver on downstream ports | Limited to USB 2.0 downstream devices only; lacks MTT architecture and per-port power control | Choose when SuperSpeed downstream capability is unnecessary and board space is constrained |
| TUSB8042IRGCR | Pin-compatible 4-port variant with identical RGC package but supports 128-Mbit/s USB 2.0 PHY speed grade | Same functional scope but optimized for lower-power USB 2.0 peripheral clusters (keyboards, mice, sensors) | Choose when downstream device mix is predominantly low-bandwidth and thermal budget is tighter |
Compared with USB3503A-AEZG and TUSB8042IRGCR, the TUSB8041IRGCR uniquely delivers full SuperSpeed downstream capability with MTT arbitration and hardware-based battery charging handshaking-making it the only option among the three for high-throughput storage expansion with embedded charging.
Availability
TUSB8041IRGCR is available at Aetrix Electronics and suitable for desktop docking stations, industrial monitors, set-top boxes, and embedded medical consoles requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TUSB8041IRGCR 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 specializing in analog, embedded processing, and connectivity technologies with over 50 years of innovation in interface and power management ICs.
The TUSB8041IRGCR belongs to TI's USB 3.0 hub product line, designed specifically for embedded host systems needing robust, standards-compliant USB expansion with minimal software overhead and hardware configurability.
FAQ
What USB speed modes does the TUSB8041IRGCR support on its downstream ports?
The TUSB8041IRGCR supports SuperSpeed (5 Gbps), high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) on all four downstream ports. Downstream speed capability is dynamically determined by upstream link negotiation: if upstream only supports high-speed, downstream SuperSpeed is disabled; if upstream supports only full-speed, both SuperSpeed and high-speed are disabled. This behavior is enforced in hardware without host driver involvement.
How does the TUSB8041IRGCR implement battery charging support?
The TUSB8041IRGCR implements battery charging through dedicated hardware logic that samples strap pins (PWRCTL[4:1]/BATEN[4:1]) at reset de-assertion. It supports CDP mode when upstream is connected, DCP mode when upstream is unconnected (compliant with YD/T 1591-2009), and automatic Divider Mode detection. No host-side BC stack is required-the TUSB8041IRGCR handles handshake signaling autonomously.
Can the TUSB8041IRGCR operate without an external crystal?
Yes-the TUSB8041IRGCR accepts either a 24-MHz crystal (between XI and XO pins with 1-MΩ feedback resistor) or a 24-MHz CMOS oscillator driving the XI pin directly. The XO pin must be left unconnected when using an external oscillator. Both configurations meet USB 3.0 jitter requirements per the datasheet's timing specifications.
What is the function of the FULLPWRMGMTz pin on the TUSB8041IRGCR?
FULLPWRMGMTz configures power switch support at reset de-assertion: logic 0 enables PWRCTL[4:1] and OVERCUR[4:1]z functionality for external load switches and over-current detection; logic 1 disables these signals, disabling hardware power control. This pin also serves as SMBus address bit 1 and reports upstream SuperSpeed connection status post-reset when enabled in the Additional Feature Configuration register.
Does the TUSB8041IRGCR require custom drivers on Windows or Linux?
No-the TUSB8041IRGCR is fully compliant with the USB 3.0 hub class specification and requires no vendor-specific drivers. It works seamlessly with standard OS USB stacks (e.g., Microsoft USBHUB3.SYS, Linux xhci_hcd) because all enumeration, descriptor reporting, and transaction translation are handled internally. VID/PID can be customized via EEPROM, but default TI identifiers are recognized out-of-box.
TUSB8041IRGCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-VFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Hub Controller
- Interface:
- USB, GPIO, I2C, SMBus
- Standards:
- USB 3.0
- Voltage - Supply:
- 1.1V, 3.3V
- Current - Supply:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 64-VQFN (9x9)
- Grade:
- -
- Qualification:
- -
TUSB8041IRGCR FAQ
1.How can I place an order for TUSB8041IRGCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB8041IRGCR 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 TUSB8041IRGCR reliable?
The price and inventory of TUSB8041IRGCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB8041IRGCR is usually 5 days.
3.What payment methods are accepted for TUSB8041IRGCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB8041IRGCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB8041IRGCR?
TUSB8041IRGCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB8041IRGCR 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 TUSB8041IRGCR?
For technical support, including TUSB8041IRGCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB8041IRGCR requirements.
6.How does Aetrix verify that TUSB8041IRGCR is sourced from the original manufacturer or authorized distributors?
All TUSB8041IRGCR 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 TUSB8041IRGCR meets industry standards.
7.What is the process for return or replacement of TUSB8041IRGCR?
All TUSB8041IRGCR units undergo pre-shipment inspection (PSI). If there is an issue with TUSB8041IRGCR, 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 TUSB8041IRGCR part is unused and in its original packaging.
Return procedure for TUSB8041IRGCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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