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Texas Instruments TUSB8041ARGCR
- Part No.:
- TUSB8041ARGCR
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
TUSB8041ARGCR.pdf
- Description:
- IC USB HUB CNTRLR 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,730
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Product details
Overview
TUSB8041ARGCR from Texas Instruments is a four-port USB 3.1 Gen1 hub IC that serves as a high-speed interconnect controller between upstream hosts and downstream USB peripherals. It supports simultaneous SuperSpeed (5 Gbps), high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) operation across all four downstream ports, with integrated Multi-Transaction Translator (MTT) architecture, per-port power switching, and BC1.2-compliant battery charging - deployed in docking stations and monitor hubs requiring robust USB topology expansion.
For engineers reviewing the TUSB8041ARGCR datasheet, TUSB8041ARGCR pinout, TUSB8041ARGCR application, or TUSB8041ARGCR equivalent, key selection criteria include its 64-pin VQFN (RGC) package, 24-MHz single-clock input support, USB 3.1 Gen1/USB 2.0 dual-mode upstream port, per-port over-current detection, and I2C/SMBus programmable configuration for VID/PID and port customization.
Technical Context
The TUSB8041ARGCR implements a USB 3.1 Gen1 hub with MTT architecture-four independent transaction translators enabling concurrent high-speed device communication without bandwidth contention. Its upstream port dynamically negotiates SuperSpeed, high-speed, or full/low-speed modes based on host capability, disabling higher-speed lanes when lower-speed electrical environments are detected.
It integrates dual-power-domain operation (1.1-V core / 3.3-V I/O), supports battery charging via CDP, DCP (YD/T 1591-2009), and ACP1/ACP2 modes, and enables configuration through pin strapping, OTP ROM, or external I2C EEPROM-allowing VID/PID assignment, port enable/disable, and manufacturer string definition without firmware modification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Standard Compliance | USB 3.1 Gen1 (5 Gbps) + USB 2.0 (480 Mbps) hub; fully compliant with USB-IF certification requirements for compound device behavior. |
| Port Count & Type | 1 upstream port (dual-mode SS/HS/FS/LS) + 4 downstream ports (each supporting SS/HS/FS/LS); all ports electrically isolated with individual power control. |
| Power Domains | 1.1-V core (VDD) and 3.3-V I/O (VDD33); separate thermal management with RθJA = 26°C/W in 64-pin VQFN package. |
| Battery Charging Support | Per-port BC1.2 CDP mode (upstream connected), DCP mode (upstream unconnected, YD/T 1591-2009 compliant), and ACP1/ACP2 divider modes with automatic transition sequence. |
| Configuration Interface | I2C/SMBus slave interface (SCL/SDA/SMBUSz) or OTP ROM; supports custom VID/PID, port settings, and manufacturer/product strings (via EEPROM only). |
| Timing & Clocking | Single 24-MHz crystal or oscillator input (XI/XO); no PLL multiplication required; internal clock distribution synchronizes all USB PHYs and link layers. |
| Over-Current Protection | Four dedicated OVERCURz inputs (active-low); supports both ganged and per-port power switching with hardware-level fault isolation. |
Pinout & Package
Package: 64-pin VQFN (RGC), 9.00 mm × 9.00 mm, exposed thermal pad (VSS) requiring PCB ground connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| USB_SSTXP_UP / USB_SSTXM_UP | Upstream SuperSpeed differential transmitter | Drives 5-Gbps upstream link; requires controlled 90-Ω differential impedance routing. |
| USB_SSRXP_UP / USB_SSRXM_UP | Upstream SuperSpeed differential receiver | Receives 5-Gbps upstream data; includes integrated termination and equalization. |
| USB_DP_UP / USB_DM_UP | Upstream USB 2.0 differential transceiver | Handles HS/FS/LS signaling; auto-negotiates speed based on upstream host capability. |
| PWRCTL1–PWRCTL4 / BATEN1–BATEN4 | Per-port power control & battery charge enable | Configurable active-high/low polarity (PWRCTL_POL); sampled at reset to set port-level charging support. |
| OVERCUR1z–OVERCUR4z | Per-port over-current detection input | Active-low signal indicating fault condition; used for hardware-initiated port power disable in <1 µs. |
| SCL / SDA / SMBUSz | I2C/SMBus configuration interface | Enables runtime reconfiguration of VID/PID, port settings, and feature enablement without reflashing. |
Key Features
| Feature | Design Value |
|---|---|
| Multi-Transaction Translator (MTT) | Four independent TTs eliminate high-speed bandwidth bottlenecks when multiple HS devices operate concurrently on different downstream ports. |
| Dynamic Speed Negotiation | Upstream port automatically disables SuperSpeed or high-speed lanes when connected to FS/LS-only hosts-ensuring backward compatibility without manual configuration. |
| Hardware-Based Battery Charging | Native BC1.2 CDP/DCP/ACP support implemented in analog PHY layer-no host software or firmware dependency for charger detection and handshaking. |
| Flexible Power Management | Ganged or per-port power switching with dedicated PWRCTL/OVERCUR pins-enables compliance with USB specification power budgeting and fault containment requirements. |
| Configurable Identity & Strings | VID/PID, port enable/disable, and custom strings programmable via I2C EEPROM or OTP-supports OEM branding and BOM differentiation without mask change. |
Applications
| Docking Station Hub | Monitor Integrated Hub |
|---|---|
Use Scenario: Adds four USB 3.1 Gen1 downstream ports to a laptop via single upstream Type-B or Type-C connection, supporting simultaneous SSD, keyboard, webcam, and Ethernet adapter. IC Role / Device Role / Timing Role: Central USB topology manager handling protocol translation, lane arbitration, and power delivery coordination across mixed-speed devices. Use Value: Enables plug-and-play expansion without host driver updates; MTT architecture prevents bandwidth starvation when multiple high-bandwidth peripherals operate concurrently. | Use Scenario: Embedded in a 4K monitor to provide two USB 3.1 Gen1 ports for peripheral attachment (keyboard/mouse) and one USB 2.0 port for integrated webcam, while upstream connects to host PC. IC Role / Device Role / Timing Role: USB protocol bridge and power distributor-manages VBUS routing, over-current protection, and battery charging handshaking for attached devices. Use Value: Eliminates need for discrete USB switch and charger ICs; reduces BOM count by integrating BC1.2 DCP/CDP logic and per-port power control into single hub die. |
| Set-Top Box Peripheral Hub | Industrial Control Panel Hub |
Use Scenario: Integrated into IPTV set-top box to add external USB storage (for DVR), wireless dongle, and HID device-while maintaining strict EMI and thermal constraints. IC Role / Device Role / Timing Role: Low-latency USB repeater and scheduler-handles asynchronous traffic from storage and real-time HID inputs without buffer overflow or timing jitter. Use Value: Single 64-pin QFN replaces multi-chip solution; 24-MHz clock simplifies layout vs. multi-frequency designs; thermal pad ensures stable operation at 70°C ambient. | Use Scenario: Used in factory HMI panel to connect barcode scanner, USB flash drive for firmware update, and serial-to-USB converter-all requiring deterministic enumeration and power sequencing. IC Role / Device Role / Timing Role: Deterministic USB root complex extension-guarantees port power-up order, provides hardware-based over-current isolation, and supports vendor-specific I2C configuration for field calibration. Use Value: Pin-strappable configuration eliminates need for pre-programmed EEPROM; GRSTz-controlled reset ensures repeatable initialization state across industrial temperature range (0°C to 70°C). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB hub applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| USB2514B-AEZG | USB 2.0-only quad-port hub; no SuperSpeed support; 48-pin QFN; lacks BC1.2 charging logic and MTT architecture. | Restricted to legacy HS/FS/LS systems; unsuitable for USB 3.x bandwidth requirements or BC1.2 charging use cases. | Select when cost sensitivity outweighs speed/charging needs and upstream host is USB 2.0 only. |
| TUSB8042ARGCR | Pin-compatible 4-port USB 3.1 Gen1 hub; adds integrated USB 3.1 Gen1 redriver functionality and enhanced ESD (±8-kV contact) on USB I/O pins. | Preferred for longer trace lengths (>15 cm) or noisy industrial environments where signal integrity margin is critical. | Choose for new designs requiring extended reach or higher ESD robustness; same footprint and register map as TUSB8041ARGCR. |
Compared with USB2514B-AEZG, TUSB8041ARGCR delivers 10× upstream bandwidth and native BC1.2 charging-enabling modern peripheral ecosystems. Against TUSB8042ARGCR, it trades redriver capability for lower power and cost, making it optimal for compact, thermally constrained dock and monitor applications.
Availability
TUSB8041ARGCR is available at Aetrix Electronics and suitable for docking stations, monitor-integrated hubs, and set-top box peripheral expansion requiring stable component supply, long-term lifecycle support, and TI-authorized traceability.
Supply support for TUSB8041ARGCR 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 leadership in USB, power management, and interface solutions.
The TUSB8041ARGCR belongs to TI's USB hub product line, engineered specifically for compact, thermally efficient expansion of USB 3.1 Gen1 and USB 2.0 connectivity in space-constrained consumer and industrial endpoints.
FAQ
What USB speeds does the TUSB8041ARGCR support on its downstream ports?
The TUSB8041ARGCR supports SuperSpeed (5 Gbps), high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) on each of its four downstream ports. Speed negotiation is dynamic and depends on upstream host capability: if the upstream port detects only high-speed or full/low-speed signaling, SuperSpeed or high-speed lanes are disabled respectively. This behavior is hardware-enforced and requires no host-side configuration. The TUSB8041ARGCR maintains full USB-IF compliance across all supported modes.
Does the TUSB8041ARGCR require an external crystal, or can it use an oscillator?
The TUSB8041ARGCR 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; XO may be left unconnected in oscillator mode. This flexibility simplifies board layout and reduces BOM count. The internal PLL derives all required clocks-including USB 3.1 Gen1 reference and USB 2.0 48-MHz clock-from this single 24-MHz source. No additional clock components are needed for TUSB8041ARGCR operation.
How does battery charging work on the TUSB8041ARGCR, and which standards does it meet?
The TUSB8041ARGCR implements hardware-based USB Battery Charging (BC1.2) support across all four downstream ports. It provides Charging Downstream Port (CDP) mode when upstream VBUS is present and configured, Dedicated Charging Port (DCP) mode when upstream is unconnected (compliant with YD/T 1591-2009), and ACP1/ACP2 divider modes with automatic transition. Battery charging enable is configured per port via PWRCTLx/BATENx pins at reset, and no host software intervention is required. This makes TUSB8041ARGCR suitable for standalone charging hubs.
Can the TUSB8041ARGCR be configured without external memory?
Yes, the TUSB8041ARGCR supports three configuration methods: pin strapping (for basic features like battery charging enable and power control mode), on-chip OTP ROM (for fixed VID/PID and port settings), or external I2C EEPROM (for full customization including manufacturer/product strings). Pin strapping alone enables functional operation without any external memory-ideal for cost-sensitive or space-constrained designs. I2C configuration allows field-updatable parameters without hardware change, while OTP provides permanent, tamper-resistant identity.
What thermal considerations apply to the TUSB8041ARGCR in continuous operation?
The TUSB8041ARGCR uses a 64-pin VQFN (RGC) package with an exposed thermal pad (VSS) that must be soldered to a solid PCB ground plane. Its junction-to-ambient thermal resistance (RθJA) is 26°C/W; at maximum load (672 mA total supply current), junction temperature rise is ~17.5°C above ambient-well within the 105°C max TJ rating. For sustained 70°C ambient operation, a minimum 200-mm² copper pour under the thermal pad is recommended. No heatsink is required in typical docking or monitor applications.
TUSB8041ARGCR 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:
- -
TUSB8041ARGCR FAQ
1.How can I place an order for TUSB8041ARGCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB8041ARGCR 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 TUSB8041ARGCR reliable?
The price and inventory of TUSB8041ARGCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB8041ARGCR is usually 5 days.
3.What payment methods are accepted for TUSB8041ARGCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB8041ARGCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB8041ARGCR?
TUSB8041ARGCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB8041ARGCR 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 TUSB8041ARGCR?
For technical support, including TUSB8041ARGCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB8041ARGCR requirements.
6.How does Aetrix verify that TUSB8041ARGCR is sourced from the original manufacturer or authorized distributors?
All TUSB8041ARGCR 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 TUSB8041ARGCR meets industry standards.
7.What is the process for return or replacement of TUSB8041ARGCR?
All TUSB8041ARGCR units undergo pre-shipment inspection (PSI). If there is an issue with TUSB8041ARGCR, 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 TUSB8041ARGCR part is unused and in its original packaging.
Return procedure for TUSB8041ARGCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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