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Texas Instruments TUSB8041RGCR
- Part No.:
- TUSB8041RGCR
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
TUSB8041RGCR.pdf
- Description:
- IC HUB CONTROLLER USB 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,635
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Product details
Overview
TUSB8041RGCR 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 with backward compatibility to USB 1.x/2.0 devices; features Multi-Transaction Translator (MTT) architecture, per-port/ganged power switching, and battery charging support (CDP/DCP/Divider Mode); used in docking stations and monitor-integrated USB hubs.
For engineers reviewing the TUSB8041RGCR datasheet, TUSB8041RGCR pinout, TUSB8041RGCR application, or TUSB8041RGCR equivalent, key selection criteria include SuperSpeed upstream/downstream capability, 64-pin VQFN package thermal performance, MTT-based transaction handling for mixed-speed device loads, and configurable battery charging modes via pin strapping or I²C/SMBus interface.
Technical Context
The TUSB8041RGCR implements a Multi-Transaction Translator (MTT) hub architecture with four independent transaction translators and four asynchronous endpoint buffers per translator, enabling concurrent high-speed and full-speed traffic without bandwidth contention. It supports dynamic mode switching between USB 3.0 and USB 2.0 compound device operation based on upstream electrical environment detection.
SuperSpeed functionality is conditionally enabled: disabled on all downstream ports when upstream only supports high-speed; fully disabled (SuperSpeed + high-speed) when upstream only supports full-/low-speed. Battery charging modes-CDP (upstream-connected), DCP (upstream-unconnected), and Divider Mode-are hardware-configurable via dedicated pins (PWRCTLx/BATENx, AUTOENz) and validated per YD/T 1591-2009.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Hub Ports | 4 downstream ports + 1 upstream port; enables expansion of USB host connectivity in space-constrained systems. |
| USB Speed Support | SuperSpeed (5 Gbps), high-speed (480 Mbps), full-speed (12 Mbps), low-speed (1.5 Mbps); maintains legacy device compatibility while delivering Gen1 bandwidth. |
| Transaction Architecture | Multi-Transaction Translator (MTT) with 4 TTs and 4 async endpoint buffers per TT; prevents high-speed/full-speed traffic blocking under mixed-device loads. |
| Power Management | Per-port or ganged power switching with over-current detection (OVERCURx); enables selective port shutdown during fault conditions without affecting other ports. |
| Battery Charging Modes | CDP (USB-IF BC 1.2 compliant), DCP (YD/T 1591-2009), and D+/D− Divider Mode; supports fast-charging smartphones/tablets without host stack modification. |
| Configuration Interface | I²C/SMBus slave interface or OTP ROM/serial EEPROM; allows field-updatable VID/PID, manufacturer/product strings, and port-specific PHY settings. |
| Package | 64-pin VQFN (RGC), 9.0 mm × 9.0 mm; exposes thermal pad for PCB heat dissipation and supports automated optical inspection (AOI) in high-volume assembly. |
Pinout & Package
Package: 64-pin VQFN (RGC), 9.0 mm × 9.0 mm body size with exposed thermal pad (VSS) requiring solder connection to PCB ground plane for thermal management and EMI control.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| USB_SSTXP_UP / USB_SSTXM_UP | SuperSpeed upstream transmitter differential pair | Carries 5-Gbps differential signals to host controller; requires controlled 90-Ω impedance routing and length matching ≤100 mil. |
| USB_SSRXP_UP / USB_SSRXM_UP | SuperSpeed upstream receiver differential pair | Receives 5-Gbps differential signals from host; mandates AC coupling capacitors and strict noise isolation from digital switching nodes. |
| PWRCTL1–PWRCTL4 / BATEN1–BATEN4 | Port power control / battery charging enable outputs | Active-high or active-low (configurable via PWRCTL_POL) GPIOs driving external load switches; sampled at reset to set per-port charging capability. |
| OVERCUR1z–OVERCUR4z | Downstream port over-current detection inputs | Open-drain, pull-up inputs monitoring external power switch fault flags; logic-low indicates over-current event requiring port power disable. |
| SCL/SMBCLK & SDA/SMBDAT | I²C/SMBus configuration interface | Supports VID/PID reprogramming, port customization, and string updates in-system via upstream USB 2.0 port; eliminates need for external programmers. |
Key Features
| Feature | Design Value |
|---|---|
| Four-port USB 3.0 hub with MTT | Enables concurrent high-bandwidth peripherals (e.g., SSD, webcam) and low-bandwidth devices (keyboard/mouse) without speed degradation. |
| Configurable battery charging (CDP/DCP/Divider) | Eliminates need for separate charging ICs in docks/monitors; supports rapid charging of mobile devices without host software involvement. |
| Single 24-MHz clock input | Reduces BOM count and board area vs. multi-crystal solutions; supports crystal (XI/XO) or oscillator drive with internal feedback resistor. |
| OTP/EEPROM/I²C configuration | Allows OEM-specific VID/PID assignment, custom port enable/disable, and manufacturer/product string personalization post-manufacture. |
| 64-pin VQFN with thermal pad | Provides 1.0°C/W junction-to-case (bottom) thermal resistance; enables reliable operation at 70°C ambient in fanless enclosures. |
Applications
| Computer Docking Stations | USB-Enabled Monitors |
|---|---|
Use Scenario: Desktop replacement dock connecting laptop to multiple peripherals including SSD, webcam, keyboard, and smartphone. IC Role / Device Role / Timing Role: USB 3.0 hub IC managing SuperSpeed data path to SSD and high-speed video streaming to webcam while maintaining full-speed HID latency. Use Value: MTT architecture ensures SSD write throughput remains near 400 MB/s even when webcam streams 1080p60, avoiding bandwidth starvation of critical peripherals. |
Use Scenario: Monitor with integrated USB hub providing downstream ports for keyboard, mouse, and charging smartphone alongside DisplayPort/HDMI video input. IC Role / Device Role / Timing Role: USB hub IC acting as compound device-SuperSpeed upstream to host PC, high-speed downstream to peripherals, and DCP-mode charging port for smartphone. Use Value: Eliminates need for separate charging circuitry; delivers up to 1.5 A to smartphone via DCP mode while simultaneously supporting HID polling at <10 ms intervals. |
| Set-Top Box Expansion Hubs | Industrial Human-Machine Interfaces |
Use Scenario: STB add-on module adding USB 3.0 storage, IR remote receiver, and firmware update port to legacy media player. IC Role / Device Role / Timing Role: USB 3.0 hub IC bridging STB SoC's single USB 2.0 port to multiple downstream functions with automatic speed negotiation. Use Value: Per-port power switching isolates IR receiver faults from storage subsystem; prevents full system reboot during peripheral over-current events. |
Use Scenario: Factory-floor HMI panel integrating barcode scanner (USB 2.0), touchscreen controller (USB 1.1), and firmware update port (USB 3.0). IC Role / Device Role / Timing Role: USB hub IC providing deterministic latency for HID-class touchscreen and scanner while supporting bulk transfers for firmware updates. Use Value: Full-power management (FULLPWRMGMTz) enables safe hot-plug of service USB drives without disrupting real-time scanner operation or touch response. |
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 |
|---|---|---|---|
| USB3503-AEZG | 3-port USB 3.0 hub with integrated USB 2.0 transceiver; no native SuperSpeed upstream support-requires USB 2.0 host interface. | Limited to USB 2.0 host systems; cannot deliver 5-Gbps bandwidth to downstream SSDs or cameras. | Select when cost-sensitive designs require USB 2.0-only upstream connectivity and reduced port count. |
| UPD720202K8-711-BAC-A | 4-port USB 3.0 hub with integrated PCIe-to-USB bridge; requires PCIe host interface instead of native USB upstream. | Targets embedded systems with PCIe lanes but no native USB 3.0 controller; adds PCIe protocol overhead. | Select when integrating into x86/ARM SoCs with PCIe but no USB 3.0 PHY, accepting added driver complexity. |
Compared with USB3503-AEZG and UPD720202K8-711-BAC-A, the TUSB8041RGCR provides native USB 3.0 upstream connectivity, full MTT architecture for mixed-speed concurrency, and direct battery charging mode support-making it optimal for dock/monitor applications requiring plug-and-play SuperSpeed expansion without PCIe or USB 2.0 bottlenecks.
Availability
TUSB8041RGCR is available at Aetrix Electronics and suitable for computer docking stations, USB-enabled monitors, and set-top box expansion hubs requiring stable component supply, long-term lifecycle support, and commercial-temperature grade performance (0°C to 70°C).
Supply support for TUSB8041RGCR 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 TUSB8041RGCR belongs to TI's USB Hub product line, designed specifically for high-reliability, feature-rich USB 3.0 expansion in space-constrained consumer and industrial systems requiring seamless OS compatibility and robust charging support.
FAQ
What USB speeds does the TUSB8041RGCR support on its downstream ports?
The TUSB8041RGCR 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 the upstream port's electrical environment: SuperSpeed and high-speed are disabled if upstream only supports full-/low-speed; only SuperSpeed is disabled if upstream supports high-speed but not SuperSpeed. This behavior is implemented in hardware and requires no firmware intervention.
How is battery charging configured on the TUSB8041RGCR?
Battery charging on the TUSB8041RGCR is configured via dedicated pins (PWRCTLx/BATENx, AUTOENz, FULLPWRMGMTz) sampled at reset de-assertion. CDP mode activates when upstream is connected; DCP mode engages when upstream is unconnected and complies with YD/T 1591-2009; Divider Mode operates transparently for BC-compliant devices. Configuration is fixed at boot and does not require runtime software control.
Does the TUSB8041RGCR require external drivers or OS modifications?
No, the TUSB8041RGCR requires no special drivers and works seamlessly with any operating system that includes standard USB stack support (Windows, Linux, macOS). It enumerates as a USB 3.0 hub class device using built-in OS drivers. All advanced features-including MTT operation, battery charging handshaking, and power switching-are handled autonomously by the TUSB8041RGCR hardware without host-side firmware involvement.
What package type and thermal characteristics does the TUSB8041RGCR use?
The TUSB8041RGCR uses a 64-pin VQFN (RGC) package measuring 9.0 mm × 9.0 mm with an exposed thermal pad. Its junction-to-case (bottom) thermal resistance is 1.0°C/W, and junction-to-ambient is 26°C/W under natural convection on a JEDEC-standard board. The thermal pad must be soldered to a solid PCB ground plane to maintain operation within the 0°C to 70°C commercial temperature range.
Can the TUSB8041RGCR be reprogrammed after soldering to the PCB?
Yes, the TUSB8041RGCR supports in-system programming of its configuration memory (VID/PID, port settings, strings) via the USB 2.0 upstream port using I²C/SMBus commands. This allows field updates without removing the device from the board. Programming requires TI-provided tools and is supported through the upstream USB 2.0 interface-no external programmer or JTAG connection is needed.
TUSB8041RGCR 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:
- 0°C ~ 70°C
- Supplier Device Package:
- 64-VQFN (9x9)
- Grade:
- -
- Qualification:
- -
TUSB8041RGCR FAQ
1.How can I place an order for TUSB8041RGCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB8041RGCR 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 TUSB8041RGCR reliable?
The price and inventory of TUSB8041RGCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB8041RGCR is usually 5 days.
3.What payment methods are accepted for TUSB8041RGCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB8041RGCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB8041RGCR?
TUSB8041RGCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB8041RGCR 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 TUSB8041RGCR?
For technical support, including TUSB8041RGCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB8041RGCR requirements.
6.How does Aetrix verify that TUSB8041RGCR is sourced from the original manufacturer or authorized distributors?
All TUSB8041RGCR 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 TUSB8041RGCR meets industry standards.
7.What is the process for return or replacement of TUSB8041RGCR?
All TUSB8041RGCR units undergo pre-shipment inspection (PSI). If there is an issue with TUSB8041RGCR, 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 TUSB8041RGCR part is unused and in its original packaging.
Return procedure for TUSB8041RGCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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