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Texas Instruments TUSB8044AIRGCR
- Part No.:
- TUSB8044AIRGCR
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
TUSB8044AIRGCR.pdf
- Description:
- IC INTERFACE MISC
- Quantity:
- Payment:
- Shipping:
Inventory:2,245
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Product details
Overview
TUSB8044AIRGCR from Texas Instruments is a four-port USB 3.2 x1 Gen1 (5 Gbps) hub IC with integrated USB 2.0 Billboard 1.21 functionality, MTT architecture, per-port/ganged power switching, and I2C-based HID-to-I2C bridge for configuration and EEPROM programming. It operates across 0°C to 70°C and supports battery charging modes including CDP, DCP (YD/T 1591-2009), and Galaxy Charging.
For engineers reviewing the TUSB8044AIRGCR datasheet, TUSB8044AIRGCR pinout, TUSB8044AIRGCR application, or TUSB8044AIRGCR equivalent, key selection considerations include SuperSpeed/High-Speed dual-mode upstream connectivity, 64-pin VQFN (RGC) package layout, USB Billboard integration for Alternate Mode status reporting, and configurable power control via PWRCTL/BATEN pins.
Technical Context
The TUSB8044AIRGCR implements a Multi-Transaction Translator (MTT) hub with four independent transaction translators and two asynchronous endpoint buffers per translator, enabling concurrent high-speed device handling. Its upstream port supports simultaneous SuperSpeed (5 Gbps) and High-Speed (480 Mbps) operation, while downstream ports auto-negotiate speed based on upstream link capability.
It integrates a dedicated USB 2.0-only internal downstream port for HID-to-I2C bridging-operating at speeds matching the upstream port-and supports I2C master clock stretching, 100 k/400 k EEPROM access, and OTP/EEPROM/SMBus-based customization of VID/PID, port behavior, and strings. The billboard device resides on the highest-numbered downstream port and complies strictly with USB Billboard Device Class Definition v1.21.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed Support | USB 3.2 x1 Gen1 (5 Gbps) + USB 2.0 High-Speed (480 Mbps) on upstream; downstream supports SS/HS/FS/LS depending on upstream link state |
| Port Count & Type | Four external downstream USB ports + one internal USB 2.0-only port for HID-to-I2C and Billboard functions |
| Power Management | Per-port or ganged power switching with over-current detection inputs (OVERCUR1z–OVERCUR4z); active-high/low polarity selectable via PWRCTL_POL |
| Battery Charging Modes | CDP (upstream connected), DCP (upstream unconnected, YD/T 1591-2009 compliant), ACP1–ACP3, Galaxy Charging, and automatic mode transition |
| Configuration Interface | I2C/SMBus slave interface (SCL/SDA) + OTP ROM or serial EEPROM support for VID/PID, port customizations, and UUID (128-bit) |
| Package & Thermal | 64-pin VQFN (RGC), 9.0 mm × 9.0 mm; RθJA = 26°C/W; operating ambient: 0°C to 70°C |
| Clock Input | Single 24-MHz crystal or oscillator input (XI/XO); no external clock synthesis required |
Pinout & Package
Package: 64-pin VQFN (RGC), 9.0 mm × 9.0 mm, exposed thermal pad.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| USB_SSTXP_UP / USB_SSTXM_UP | SuperSpeed upstream transmitter differential pair | Drives 5-Gbps differential signaling to host controller; requires controlled impedance routing |
| USB_SSRXP_UP / USB_SSRXM_UP | SuperSpeed upstream receiver differential pair | Receives 5-Gbps differential signals from host; AC-coupled with 100-Ω termination |
| USB_DP_UP / USB_DM_UP | USB 2.0 upstream transceiver differential pair | Handles HS/FS/LS signaling; shared physical layer with SuperSpeed path |
| PWRCTL1–PWRCTL4 / BATEN1–BATEN4 | Port power control / battery charging enable | Configurable active-high/low outputs to drive external power switches; sampled at reset for battery charging mode selection |
| OVERCUR1z–OVERCUR4z | Downstream port over-current detection inputs | Active-low interrupt inputs tied to power switch fault outputs; used for per-port or ganged shutdown |
| SCL/SMBCLK & SDA/SMBDAT | I2C/SMBus interface | Configurable via SMBUSz pin; enables EEPROM programming, VID/PID loading, and runtime register access |
| BBEN/GANGED,HS_UP | Billboard enable / ganged mode select / HS upstream indicator | In I2C mode: enables Billboard device; in SMBus mode: selects ganged power control or reports upstream HS connection status |
Key Features
| Feature | Design Value |
|---|---|
| Integrated USB 2.0 Billboard 1.21 | Reports Alternate Mode status to host via dedicated downstream port; eliminates need for separate billboard IC |
| Multi-Transaction Translator (MTT) | Four independent TTs with dual asynchronous endpoint buffers per TT enable concurrent full-speed device traffic without bandwidth contention |
| HID-to-I2C Bridge | Internal USB 2.0 port provides I2C master access over USB HID class-enables in-system EEPROM programming and real-time configuration without firmware changes |
| Flexible Power Architecture | Supports both per-port and ganged power switching with programmable polarity; reduces BOM count and simplifies PCB layout for charging applications |
| YD/T 1591-2009 Compliant DCP | Meets Chinese telecommunications standard for Dedicated Charging Port, ensuring compatibility with legacy wall adapters and automotive chargers |
Applications
| Computer Docking Stations | USB-C Monitor Hubs |
|---|---|
Use Scenario: A compact docking station connects laptop via USB-C to provide four downstream USB-A ports, video output, and Ethernet. IC Role / Device Role / Timing Role: TUSB8044AIRGCR acts as the primary USB hub controller, managing SuperSpeed data paths to peripherals while hosting the Billboard device to report DisplayPort Alt Mode status to the host OS. Use Value: Eliminates discrete billboard IC and reduces component count; MTT architecture ensures stable throughput when multiple USB 2.0 devices (keyboard, mouse, flash drive) operate concurrently. | Use Scenario: A monitor with USB-C upstream input provides downstream USB-A ports for keyboard/mouse and embedded USB HID interface for OSD control. IC Role / Device Role / Timing Role: TUSB8044AIRGCR serves as the USB hub and HID-to-I2C bridge-translating USB commands into I2C writes to the monitor's display controller and EEPROM. Use Value: Enables firmware-free OSD updates and factory calibration via USB; internal HID-to-I2C port operates at same speed as upstream link (HS or FS), avoiding bottlenecks. |
| Set-Top Box Expansion Hubs | Industrial USB Hub Modules |
Use Scenario: A set-top box adds USB peripheral support (storage, IR blaster, webcam) through an external hub module with charging capability. IC Role / Device Role / Timing Role: TUSB8044AIRGCR manages downstream port power control and battery charging handshaking (CDP/DCP), while its Billboard function communicates USB-C cable orientation and mode negotiation to the STB's USB host stack. Use Value: Supports Galaxy Charging and YD/T 1591-2009 compliance for global accessory compatibility; ganged power mode simplifies power delivery design for cost-sensitive consumer enclosures. | Use Scenario: An industrial control panel uses a ruggedized USB hub to connect barcode scanners, printers, and HID-configurable sensors in factory environments. IC Role / Device Role / Timing Role: TUSB8044AIRGCR provides robust over-current protection (per-port or ganged), wide-temp operation (0°C to 70°C), and EEPROM-based field-upgradable port configurations via USB 2.0. Use Value: Field-programmable VID/PID and port settings allow OEM branding and functional differentiation without hardware revision; 128-bit UUID enables secure device identification in asset-tracking systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 3.x 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 Billboard, HID-to-I2C, and battery charging logic | Suitable only for legacy HS/FS-only systems without USB-C Alt Mode or charging requirements | Select when SuperSpeed bandwidth and USB-C ecosystem features are unnecessary and BOM cost is primary constraint |
| TUSB8041ARGCR | Single-chip USB 3.2 x1 Gen1 hub with identical pinout, Billboard, and HID-to-I2C; differs in port count (1 downstream + internal port only) and lacks per-port power control | Used in space-constrained designs requiring minimal downstream expansion (e.g., embedded USB-C receptacles) | Choose for footprint-constrained applications where four external ports are not required but full TUSB8044A feature set (Billboard, charging, I2C) must be retained |
Compared with USB2514B-AEZG, TUSB8044AIRGCR delivers 5-Gbps bandwidth, USB-C Alt Mode visibility, and integrated charging-critical for modern docking and monitor hubs. Against TUSB8041ARGCR, it adds three extra downstream ports and per-port power management, enabling scalable peripheral expansion without sacrificing configurability or compliance.
Availability
TUSB8044AIRGCR is available at Aetrix Electronics and suitable for computer docking stations, USB-C monitor hubs, and industrial USB expansion modules requiring stable component supply, long-term lifecycle support, and production-ready USB 3.2 compliance.
Supply support for TUSB8044AIRGCR 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 interface ICs.
The TUSB8044AIRGCR belongs to TI's USB Hub portfolio, designed specifically for USB-C-enabled docking, display, and peripheral expansion systems requiring integrated Billboard functionality, battery charging support, and flexible power architecture.
FAQ
What USB specifications does the TUSB8044AIRGCR comply with?
The TUSB8044AIRGCR complies with USB 3.2 x1 Gen1 (5 Gbps), USB 2.0 High-Speed (480 Mbps), USB Battery Charging Specification Rev 1.2, USB Device Class Definition for Billboard Devices v1.21, and Chinese Telecommunications Industry Standard YD/T 1591-2009. It implements full MTT hub behavior per USB 2.0 specification and supports all mandatory USB 3.x link power states (U0–U3).
Does the TUSB8044AIRGCR require an external crystal or can it use an oscillator?
The TUSB8044AIRGCR 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 when using an external oscillator. No PLL or frequency multiplication is performed internally-the device operates natively at 24 MHz for USB 2.0 timing and derives SuperSpeed clocks via internal PHY circuitry.
How is the USB Billboard function implemented in the TUSB8044AIRGCR?
The TUSB8044AIRGCR integrates a USB 2.0 Billboard device compliant with v1.21, attached to the highest-numbered downstream port (Port 4). It reports Alternate Mode status-including cable orientation, supported modes, and mode entry/exit-to the host system. Billboard enable is controlled by the BBEN pin in I2C mode or via register in SMBus mode; no external IC or firmware is required.
Can the TUSB8044AIRGCR support both per-port and ganged power switching simultaneously?
No-the TUSB8044AIRGCR supports either per-port or ganged power switching, selected at reset via the BBEN/GANGED,HS_UP pin. When ganged mode is enabled, all downstream ports share a single power rail and over-current response; per-port mode allows independent control and fault isolation. The selection is static at boot and cannot be dynamically reconfigured during operation.
What interfaces are available to configure the TUSB8044AIRGCR's VID, PID, and port settings?
The TUSB8044AIRGCR supports configuration via OTP ROM, external I2C EEPROM, or SMBus slave interface. VID/PID, port customizations, and manufacturer/product strings (except those stored in OTP) are loaded at power-on. I2C access (SCL/SDA) enables runtime register reads/writes and in-system EEPROM programming through the USB 2.0 upstream port using the built-in HID-to-I2C bridge.
TUSB8044AIRGCR 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 1.1, USB 2.0, USB 3.1
- Voltage - Supply:
- 0.99V ~ 1.26V, 3V ~ 3.6V
- Current - Supply:
- 680mA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Supplier Device Package:
- 64-VQFN (9x9)
- Grade:
- -
- Qualification:
- -
TUSB8044AIRGCR FAQ
1.How can I place an order for TUSB8044AIRGCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB8044AIRGCR 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 TUSB8044AIRGCR reliable?
The price and inventory of TUSB8044AIRGCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB8044AIRGCR is usually 5 days.
3.What payment methods are accepted for TUSB8044AIRGCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB8044AIRGCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB8044AIRGCR?
TUSB8044AIRGCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB8044AIRGCR 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 TUSB8044AIRGCR?
For technical support, including TUSB8044AIRGCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB8044AIRGCR requirements.
6.How does Aetrix verify that TUSB8044AIRGCR is sourced from the original manufacturer or authorized distributors?
All TUSB8044AIRGCR 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 TUSB8044AIRGCR meets industry standards.
7.What is the process for return or replacement of TUSB8044AIRGCR?
All TUSB8044AIRGCR units undergo pre-shipment inspection (PSI). If there is an issue with TUSB8044AIRGCR, 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 TUSB8044AIRGCR part is unused and in its original packaging.
Return procedure for TUSB8044AIRGCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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