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Texas Instruments TUSB8041IRGCT
- Part No.:
- TUSB8041IRGCT
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
TUSB8041IRGCT.pdf
- Description:
- IC 4-PORT USB 3.0 HUB 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:4,770
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Product details
Overview
TUSB8041IRGCT 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) operation across upstream and downstream ports. It integrates Multi-Transaction Translator (MTT) architecture with four independent transaction translators, per-port/ganged power switching, and battery charging support (CDP/DCP/Divider Mode). It serves as the central USB expansion controller in docking stations and monitors requiring backward-compatible multi-speed connectivity.
For engineers reviewing the TUSB8041IRGCT datasheet, TUSB8041IRGCT pinout, TUSB8041IRGCT application, or TUSB8041IRGCT equivalent, key selection criteria include its 64-pin VQFN (9 mm × 9 mm) package, 24-MHz single-clock input support, OTP/EEPROM/I²C configurability for VID/PID/custom strings, 128-bit UUID generation, and native OS compatibility without custom drivers.
Technical Context
The TUSB8041IRGCT implements a fully compliant USB 3.0 hub architecture with separate SuperSpeed and USB 2.0 PHY layers. Its MTT design enables concurrent high-bandwidth transfers across all four downstream ports without bandwidth contention typical of single-TT hubs.
It supports dynamic mode negotiation: when upstream connects only to USB 2.0 hosts, SuperSpeed is disabled on all downstream ports; when upstream connects only to low-speed/full-speed hosts, both SuperSpeed and high-speed are disabled. Battery charging modes (CDP, DCP per YD/T 1591-2009, Divider Mode) are hardware-configurable via strap pins or I²C/SMBus.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Hub Type | Four-port USB 3.0 hub with Multi-Transaction Translator (MTT) architecture enabling independent bandwidth allocation per port |
| Data Rates | SuperSpeed (5 Gbps), high-speed (480 Mbps), full-speed (12 Mbps), low-speed (1.5 Mbps) - auto-negotiated per port |
| Power Management | Per-port or ganged power switching with dedicated PWRCTL/BATEN and OVERCURz pins for each downstream port |
| Configuration Interface | OTP ROM, serial EEPROM, or I²C/SMBus slave interface for VID/PID, port customization, and string programming |
| Clock Input | Single 24-MHz crystal or oscillator - eliminates need for multiple clock sources or PLLs |
| Operating Temperature | –40°C to +85°C (industrial grade, confirmed by TUSB8041I variant specification) |
| ESD Rating | ±2000 V HBM - meets JEDEC JS-001 for robust board-level handling |
Pinout & Package
Package: 64-pin VQFN (RGC), 9.00 mm × 9.00 mm, thermally enhanced with exposed thermal pad (VSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| USB_SSTXP_UP / USB_SSTXM_UP | SuperSpeed upstream TX differential pair | Drives 5-Gbps differential signal to host; requires controlled 90-Ω impedance routing |
| USB_SSRXP_UP / USB_SSRXM_UP | SuperSpeed upstream RX differential pair | Receives 5-Gbps differential signal from host; integrated termination |
| USB_DP_UP / USB_DM_UP | USB 2.0 upstream D+/D− | Full-speed/high-speed transceiver; shared with SuperSpeed via multiplexed PHY layer |
| PWRCTL1–PWRCTL4 / BATEN1–BATEN4 | Port power control / battery enable outputs | Active-high or active-low (configurable via PWRCTL_POL) signals driving external load switches for charging control |
| OVERCUR1z–OVERCUR4z | Port over-current detection inputs | Active-low open-drain inputs monitoring external current-limiting switch status per port |
| SCL/SMBCLK & SDA/SMBDAT | I²C/SMBus configuration interface | Supports factory programming and runtime reconfiguration of VID/PID/port features |
Key Features
| Feature | Design Value |
|---|---|
| Multi-Transaction Translator (MTT) | Four independent TTs eliminate bandwidth bottlenecks - enables simultaneous high-bandwidth transfers on all four downstream ports |
| Battery Charging Support | Hardware-enforced CDP (upstream-connected), DCP (YD/T 1591-2009 compliant), and D+/D− Divider Mode - no firmware required |
| Flexible Power Control | Ganged or per-port power switching with configurable polarity (PWRCTL_POL) and full power management enable (FULLPWRMGMTz) |
| Configurability | Strap-pin setup for boot-time options plus I²C/SMBus or OTP for field-updatable VID/PID, manufacturer/product strings, and serial number |
| UUID Generation | On-chip 128-bit universally unique identifier - enables secure device identification and firmware binding without external memory |
Applications
| Computer Docking Station | USB-C Monitor Hub |
|---|---|
Use Scenario: A compact desktop dock providing USB 3.0 peripherals, display video, and power delivery via single USB-C upstream connection. IC Role / Device Role / Timing Role: TUSB8041IRGCT acts as the primary USB 3.0 hub controller, managing bandwidth allocation between SSDs, webcams, and keyboards while maintaining strict USB 2.0 timing for HID devices. Use Value: MTT architecture ensures full 5 Gbps throughput to attached storage without starving USB 2.0 peripherals - critical for real-time webcam + keyboard responsiveness. |
Use Scenario: Integrated hub inside a 4K monitor offering three downstream USB-A ports for keyboard, mouse, and flash drive alongside upstream DP Alt Mode connection. IC Role / Device Role / Timing Role: TUSB8041IRGCT provides USB 3.0 expansion while coordinating with embedded microcontroller for USB PD communication and port power state synchronization. Use Value: Per-port power switching (PWRCTLx/BATENx) enables selective charging of mobile devices without affecting other connected peripherals - essential for clean power domain isolation. |
| Industrial Set-Top Box | Medical Imaging Peripheral Hub |
Use Scenario: STB with HDMI output, IR remote, and four USB ports for external HDD, Wi-Fi adapter, Bluetooth dongle, and service diagnostic tool. IC Role / Device Role / Timing Role: TUSB8041IRGCT serves as the USB system hub, handling mixed-speed traffic including isochronous audio streaming (USB 2.0) and bulk data transfer (USB 3.0 HDD). Use Value: Hardware-based battery charging modes allow direct charging of service tools without host stack involvement - simplifies field maintenance firmware. |
Use Scenario: DICOM-compliant imaging device hub connecting ultrasound probe interface, PACS storage drive, footswitch, and service port within EMI-sensitive clinical environment. IC Role / Device Role / Timing Role: TUSB8041IRGCT functions as the certified USB 3.0 expansion node, ensuring deterministic latency for footswitch HID reporting while sustaining >300 MB/s image transfer to SSD. Use Value: ±2000-V HBM ESD rating and –40°C to +85°C industrial temperature range guarantee reliable operation in uncontrolled medical facility environments. |
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 | Three-port USB 3.0 hub with integrated USB 2.0 PHY; no MTT - single TT limits concurrent high-bandwidth transfers | Limited to lower-port-count systems where bandwidth contention is acceptable | Select when cost sensitivity outweighs need for full per-port SuperSpeed concurrency |
| UPD720202K8-701-BAC-A | Four-port USB 3.0 hub with MTT; supports PCIe upstream interface (not USB); different pinout and power sequencing | Used in embedded systems with PCIe host controllers instead of standard USB upstream | Choose only when upstream interface is PCIe - not a drop-in replacement for USB upstream designs |
Compared with USB3503A-AEZG and UPD720202K8-701-BAC-A, the TUSB8041IRGCT uniquely delivers USB 3.0 MTT functionality with native USB upstream connectivity, industrial temperature range, and hardware battery charging - making it optimal for space-constrained docking and monitor applications requiring full-speed concurrent operation.
Availability
TUSB8041IRGCT is available at Aetrix Electronics and suitable for computer docking stations, USB-C monitors, and industrial set-top boxes requiring stable component supply, long-term lifecycle support, and industrial-grade thermal performance.
Supply support for TUSB8041IRGCT 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 solutions, with leadership in USB, power management, and industrial interface ICs.
The TUSB8041IRGCT belongs to TI's USB 3.0 hub product line, designed specifically for high-reliability docking, display, and embedded peripheral expansion where mixed-speed compatibility, battery charging, and configurability are mandatory.
FAQ
What USB speed modes does the TUSB8041IRGCT support on its downstream ports?
The TUSB8041IRGCT supports SuperSpeed (5 Gbps), high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) on all four downstream ports. Speed negotiation is automatic and independent per port based on connected device capability and upstream link status - if upstream only supports USB 2.0, SuperSpeed is disabled downstream; if upstream only supports low/full-speed, both SuperSpeed and high-speed are disabled.
Does the TUSB8041IRGCT require external crystals or oscillators?
Yes, the TUSB8041IRGCT requires a single 24-MHz clock source, which can be either a 24-MHz crystal connected between XI and XO pins (with 1-MΩ feedback resistor) or a 24-MHz CMOS oscillator driving the XI pin. The device contains no internal PLL capable of generating USB timing clocks from lower-frequency sources.
How is battery charging configured on the TUSB8041IRGCT?
Battery charging on the TUSB8041IRGCT is configured via strap pins (PWRCTLx/BATENx, AUTOENz, FULLPWRMGMTz) sampled at reset de-assertion, or dynamically via I²C/SMBus register writes. It supports CDP (when upstream connected), DCP (YD/T 1591-2009 compliant), and D+/D− Divider Mode - all implemented in hardware without host software intervention.
Can the TUSB8041IRGCT operate as a compound USB device?
Yes, the TUSB8041IRGCT supports operation as a USB 3.0 or USB 2.0 compound device - meaning it presents itself as both a hub and an integrated function (e.g., embedded flash controller or HID interface) on the same USB interface. This capability is enabled through configuration bits programmed via OTP, EEPROM, or I²C/SMBus.
What package and thermal characteristics apply to the TUSB8041IRGCT?
The TUSB8041IRGCT uses a 64-pin VQFN (RGC) package measuring 9.00 mm × 9.00 mm with an exposed thermal pad. Its junction-to-ambient thermal resistance (RθJA) is 26°C/W under JEDEC-standard conditions, and junction-to-board (RθJB) is 5.3°C/W - enabling reliable operation up to +85°C ambient when properly mounted on a 2-layer PCB with thermal vias to inner ground planes.
TUSB8041IRGCT 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:
- -
TUSB8041IRGCT FAQ
1.How can I place an order for TUSB8041IRGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB8041IRGCT 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 TUSB8041IRGCT reliable?
The price and inventory of TUSB8041IRGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB8041IRGCT is usually 5 days.
3.What payment methods are accepted for TUSB8041IRGCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB8041IRGCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB8041IRGCT?
TUSB8041IRGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB8041IRGCT 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 TUSB8041IRGCT?
For technical support, including TUSB8041IRGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB8041IRGCT requirements.
6.How does Aetrix verify that TUSB8041IRGCT is sourced from the original manufacturer or authorized distributors?
All TUSB8041IRGCT 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 TUSB8041IRGCT meets industry standards.
7.What is the process for return or replacement of TUSB8041IRGCT?
All TUSB8041IRGCT units undergo pre-shipment inspection (PSI). If there is an issue with TUSB8041IRGCT, 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 TUSB8041IRGCT part is unused and in its original packaging.
Return procedure for TUSB8041IRGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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