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Texas Instruments TUSB8044ARGCT
- Part No.:
- TUSB8044ARGCT
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
TUSB8044ARGCT.pdf
- Description:
- IC HUB CONTROLLER USB 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,630
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Product details
Overview
TUSB8044ARGCT 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 downstream configuration. It operates across 0°C to 70°C and supports battery charging modes including CDP, DCP (YD/T 1591-2009), and Galaxy Charging - deployed in docking stations and monitors requiring full-speed SuperSpeed/USB 2.0 coexistence.
For engineers reviewing the TUSB8044ARGCT datasheet, TUSB8044ARGCT pinout, TUSB8044ARGCT application, or TUSB8044ARGCT equivalent, key selection criteria include its 64-pin VQFN (RGC) package, dual-power-rail operation (1.1 V / 3.3 V), USB Billboard 1.21 compliance, SuperSpeed upstream/downstream link management, and configurable battery charging support per port via strap pins or SMBus/I2C.
Technical Context
The TUSB8044ARGCT implements a Multi-Transaction Translator (MTT) hub architecture with four independent transaction translators and two asynchronous endpoint buffers per translator, enabling concurrent high-speed/full-speed device handling. Its upstream port supports simultaneous SuperSpeed (5 Gbps) and USB 2.0 (480 Mbps) signaling, while downstream ports dynamically disable SuperSpeed when upstream connects only to USB 2.0 hosts.
It integrates an internal USB 2.0-only downstream port dedicated to HID-to-I2C bridging, operating at speed matching the upstream port (HS/FS), and supports vendor-class I2C/SMBus slave interface for EEPROM programming, VID/PID customization, and runtime register control of battery charging, billboard enablement, and power-switch polarity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Standard Support | USB 3.2 x1 Gen1 (5 Gbps) + USB 2.0 Hi-Speed (480 Mbps) + Full-Speed/Low-Speed; Billboard 1.21 compliant |
| Port Count & Type | Four external downstream USB ports + one internal USB 2.0-only port for HID-to-I2C and Billboard functions |
| Power Rails | 1.1 V (VDD) for core logic; 3.3 V (VDD33) for I/O and USB transceivers; separate supply domains |
| Battery Charging Modes | CDP (upstream-connected), DCP (YD/T 1591-2009 compliant), ACP1–ACP3, Galaxy Charging, auto-mode transition |
| Configuration Interface | I2C/SMBus slave interface (SCL/SDA) + OTP ROM + serial EEPROM; supports VID/PID, port config, strings (EEPROM only) |
| Package & Thermal | 64-pin VQFN (RGC), 9.0 mm × 9.0 mm; RθJA = 26°C/W; junction temp rated to 105°C |
| Operating Temperature | 0°C to 70°C (commercial grade); TUSB8044ARGCT is the commercial variant (not industrial TUSB8044AI) |
Pinout & Package
Package: 64-pin VQFN (RGC), 9.0 mm × 9.0 mm, exposed thermal pad. Pin-compatible with TUSB8044A and TUSB8044AI variants.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| USB_SSTXP_UP / USB_SSTXM_UP | SuperSpeed upstream TX differential pair | Drives 5-Gbps differential signals to host; requires controlled 90-Ω impedance routing |
| USB_SSRXP_UP / USB_SSRXM_UP | SuperSpeed upstream RX differential pair | Receives 5-Gbps differential signals from host; AC-coupled with 0.1-μF capacitors |
| USB_DP_UP / USB_DM_UP | USB 2.0 upstream D+/D− | Full-/high-speed bidirectional transceiver; supports LS/FS/HS handshaking and chirp negotiation |
| PWRCTL1–PWRCTL4 | Downstream port power control | Active-high/low (configurable) enables/disables individual port power switches; supports ganged mode |
| OVERCUR1z–OVERCUR4z | Downstream over-current detection | Active-low open-drain inputs; assert low on over-current event; used for per-port or ganged fault response |
| SCL/SMBCLK & SDA/SMBDAT | I2C/SMBus interface | Configurable via SMBUSz pin; supports EEPROM programming, VID/PID load, and runtime register access |
| BBEN/GANGED,HS_UP | Billboard enable / power mode select | In I2C mode: enables USB Billboard device; in SMBus mode: selects ganged/individual power control |
| GRSTz | Global reset input | Active-low asynchronous reset; forces all registers to default state; must be held low ≥10 μs after power stabilization |
Key Features
| Feature | Design Value |
|---|---|
| Multi-Transaction Translator (MTT) Hub | Four independent TTs with two async endpoint buffers each - eliminates transaction collisions across mixed-speed downstream devices |
| Integrated USB 2.0 Billboard 1.21 | Dedicated downstream port presents standardized Alternate Mode status to host OS without firmware intervention |
| HID-to-I2C Bridge | Internal USB 2.0 port exposes I2C master via HID report descriptors - enables direct EEPROM programming and sensor/control access over USB |
| Flexible Battery Charging Support | Hardware-strapped or SMBus-configurable CDP/DCP/ACP modes - meets YD/T 1591-2009 and Galaxy Charging requirements out-of-box |
| Single-Crystal Clock Architecture | 24-MHz crystal (XI/XO) drives both USB 2.0 and USB 3.x PHYs - eliminates need for multiple clock sources or PLL re-synthesis |
Applications
| Computer Docking Stations | USB-C Monitor Hubs |
|---|---|
Use Scenario: Desktop expansion dock aggregating USB peripherals, display, and power delivery through single USB-C uplink. IC Role / Device Role / Timing Role: USB 3.2 hub IC managing concurrent SuperSpeed storage, USB 2.0 keyboard/mouse, and Billboard reporting of DP Alt Mode status. Use Value: Enables seamless plug-and-play with Windows/macOS without driver installation; Billboard ensures correct Alt Mode negotiation and error visibility. | Use Scenario: Monitor-integrated USB hub providing data, video, and charging to laptop via USB-C. IC Role / Device Role / Timing Role: Downstream hub controller handling USB 3.x SSDs, USB 2.0 webcams, and embedded I2C sensors (e.g., ambient light) via HID-to-I2C bridge. Use Value: Eliminates separate microcontroller for sensor control; reduces BOM cost and PCB area while maintaining USB compliance. |
| Set-Top Box Peripherals | Industrial Human-Machine Interface (HMI) |
Use Scenario: Media box with front-panel USB ports supporting flash drives, keyboards, and game controllers. IC Role / Device Role / Timing Role: USB 2.0/3.x hub managing mixed-speed legacy and modern peripherals; uses per-port power switching for energy efficiency. Use Value: Prevents bus lock-up from faulty devices; over-current isolation protects system during hot-plug events. | Use Scenario: Factory-floor HMI panel requiring reliable USB peripheral attachment (barcode scanners, RFID readers) in EMI-prone environments. IC Role / Device Role / Timing Role: Robust hub IC with 26°C/W thermal resistance and 105°C max junction temperature; supports extended life under continuous operation. Use Value: Maintains stable USB enumeration and data throughput despite ambient temperature swings and electrical noise. |
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 |
|---|---|---|---|
| TUSB8041ARGCT | Single-chip 4-port USB 3.0 hub (no Billboard, no HID-to-I2C); identical RGC package and pinout | Lacks USB Billboard 1.21 and internal HID-to-I2C port - unsuitable for Alt Mode-aware systems or embedded I2C control | Select when Billboard and I2C bridge are unnecessary; lower BOM cost and simpler layout |
| UPD720210K8-711-BAC-A | 4-port USB 3.0 hub with integrated PCIe-to-USB bridge; requires PCIe host interface, not standalone USB upstream | Designed for PCIe-based host platforms (e.g., embedded x86); not compatible with standard USB upstream connections | Choose only when integrating into PCIe-rooted systems; incompatible replacement for USB-native upstream topology |
Compared with TUSB8044ARGCT, TUSB8041ARGCT removes Billboard and HID-to-I2C functionality while retaining identical mechanical and electrical compatibility, whereas UPD720210K8-711-BAC-A serves a fundamentally different architectural role requiring PCIe host connectivity - neither is pin-compatible nor functionally substitutable without board redesign.
Availability
TUSB8044ARGCT is available at Aetrix Electronics and suitable for computer docking stations, USB-C monitor hubs, and set-top box peripherals requiring stable component supply, long-term lifecycle support, and production-ready USB 3.2 compliance.
Supply support for TUSB8044ARGCT 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 TUSB8044ARGCT belongs to TI's USB 3.x Hub product line, engineered for high-reliability docking, display, and peripheral aggregation where simultaneous SuperSpeed and USB 2.0 operation, battery charging, and USB Billboard interoperability are required.
FAQ
What USB standards does the TUSB8044ARGCT support?
The TUSB8044ARGCT supports USB 3.2 x1 Gen1 (5 Gbps), USB 2.0 Hi-Speed (480 Mbps), Full-Speed (12 Mbps), and Low-Speed (1.5 Mbps). It also complies with USB Billboard Device Class Specification 1.21 and implements battery charging protocols including CDP, DCP (YD/T 1591-2009), and Galaxy Charging. The TUSB8044ARGCT achieves backward compatibility by disabling SuperSpeed links when upstream connects only to USB 2.0 hosts.
Does the TUSB8044ARGCT require external crystals or oscillators?
Yes, the TUSB8044ARGCT requires a 24-MHz fundamental-mode crystal connected between XI and XO pins, with a 1-MΩ feedback resistor. Alternatively, a 24-MHz CMOS oscillator may drive the XI pin directly, in which case XO is left unconnected. This single clock source synchronizes both USB 2.0 and USB 3.x PHYs - no additional timing components are needed for standard operation of the TUSB8044ARGCT.
How does the TUSB8044ARGCT handle USB Billboard functionality?
The TUSB8044ARGCT integrates a USB 2.0 Billboard device attached to its highest-numbered downstream port (Port 4), compliant with USB Device Class Definition for Billboard Devices Version 1.21. It reports Alternate Mode status (e.g., DisplayPort) to the host OS without firmware involvement. Billboard enable/disable is controlled by the BBEN pin in I2C mode or via register in SMBus mode - a key differentiator of the TUSB8044ARGCT versus non-billboard hubs.
Can the TUSB8044ARGCT support custom VID/PID and device strings?
Yes, the TUSB8044ARGCT supports customization of VID, PID, manufacturer/product strings, and serial number via I2C EEPROM or SMBus interface. OTP ROM supports VID/PID and port configurations but excludes string storage. Strings and serial numbers require external I2C EEPROM or SMBus slave device - this flexibility allows branded device identification and field-updatable descriptors in production units using the TUSB8044ARGCT.
What power management options does the TUSB8044ARGCT offer for downstream ports?
The TUSB8044ARGCT supports both per-port and ganged power switching via PWRCTL1–PWRCTL4 pins, configurable through strap pins or SMBus registers. Over-current detection is provided on OVERCUR1z–OVERCUR4z inputs, with fault response scaling from isolated port shutdown (per-port mode) to full-hub disable (ganged mode). This dual-mode capability makes the TUSB8044ARGCT adaptable to diverse safety and power budget requirements across docking, monitor, and industrial applications.
TUSB8044ARGCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-VFQFN Exposed Pad
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Hub Controller
- Interface:
- I2C, SMBus
- Standards:
- USB 3.1
- Voltage - Supply:
- 0.99V ~ 1.26V, 3V ~ 3.6V
- Current - Supply:
- -
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Supplier Device Package:
- 64-VQFN (9x9)
- Grade:
- -
- Qualification:
- -
TUSB8044ARGCT FAQ
1.How can I place an order for TUSB8044ARGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB8044ARGCT 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 TUSB8044ARGCT reliable?
The price and inventory of TUSB8044ARGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB8044ARGCT is usually 5 days.
3.What payment methods are accepted for TUSB8044ARGCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB8044ARGCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB8044ARGCT?
TUSB8044ARGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB8044ARGCT 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 TUSB8044ARGCT?
For technical support, including TUSB8044ARGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB8044ARGCT requirements.
6.How does Aetrix verify that TUSB8044ARGCT is sourced from the original manufacturer or authorized distributors?
All TUSB8044ARGCT 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 TUSB8044ARGCT meets industry standards.
7.What is the process for return or replacement of TUSB8044ARGCT?
All TUSB8044ARGCT units undergo pre-shipment inspection (PSI). If there is an issue with TUSB8044ARGCT, 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 TUSB8044ARGCT part is unused and in its original packaging.
Return procedure for TUSB8044ARGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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