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Texas Instruments TUSB8042ARGCR
- Part No.:
- TUSB8042ARGCR
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
TUSB8042ARGCR.pdf
- Description:
- IC INTERFACE MISC
- Quantity:
- Payment:
- Shipping:
Inventory:896
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Product details
Overview
TUSB8042ARGCR from Texas Instruments is a four-port USB 3.2 x1 Gen1 (5 Gbps) hub IC with integrated USB 2.0 MTT architecture, per-port power switching, and battery charging support including DCP, CDP, and ACP modes compliant with YD/T 1591-2009. It operates from 1.1 V and 3.3 V supplies, uses a single 24 MHz crystal or oscillator, and targets docking stations and monitor hubs requiring simultaneous SuperSpeed and high-speed connectivity.
For engineers reviewing the TUSB8042ARGCR datasheet, TUSB8042ARGCR pinout, TUSB8042ARGCR application, or TUSB8042ARGCR equivalent, key selection criteria include its 64-pin RGC (VQFN) package, USB 3.2 x1 Gen1 upstream/downstream capability, I2C/SMBus programmability for VID/PID and port configuration, and hardware-configurable battery charging mode selection via strapping pins.
Technical Context
The TUSB8042ARGCR implements a dual-domain USB hub architecture: a USB 3.2 x1 Gen1 (5 Gbps) path with separate SSTx/SSRx differential pairs per downstream port and a USB 2.0 MTT hub with four transaction translators and two asynchronous endpoint buffers each. Its upstream port supports dynamic link-state negotiation (U0/U1/U2), while downstream ports auto-negotiate speed based on upstream electrical environment-disabling SuperSpeed when upstream only supports HS/FS/LS.
Power management is configurable as ganged or per-port via dedicated PWRCTL/BATEN and OVERCURz pins, enabling independent downstream port enable/disable and overcurrent isolation. Battery charging logic is implemented in hardware with pin-strapped mode selection (DCP/CDP/ACP auto-scan), and configuration persistence is supported via OTP ROM, external I2C EEPROM, or SMBus target interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed Support | Upstream/downstream USB 3.2 x1 Gen1 (5 Gbps) + USB 2.0 HS/FS/LS; automatic speed downgrade when upstream lacks SS capability |
| Supply Voltages | 1.1 V (VDD core) and 3.3 V (VDD33 I/O); specified operating ranges: 0.99–1.26 V and 3.0–3.6 V respectively |
| Power Management | Per-port or ganged power switching with dedicated PWRCTLx/BATENx and OVERCURxz control signals; enables isolated overcurrent shutdown |
| Battery Charging Modes | Hardware-supported DCP (YD/T 1591-2009), CDP, and ACP1–ACP3 with automatic transition; mode selected at reset via strapping pins |
| Configuration Interface | I2C/SMBus target interface (SCL/SDA/SMBUSz) supporting VID/PID/port customization and string storage; also supports OTP ROM and serial EEPROM |
| Package & Thermal | 64-pin RGC (VQFN, 9 mm × 9 mm); thermal resistance RθJA = 26 °C/W; rated for 0°C to 70°C ambient (commercial grade) |
| Crystal Input | 24 MHz fundamental-mode crystal or oscillator on XI/XO; requires 1 MΩ feedback resistor when using crystal |
Pinout & Package
64-pin RGC (VQFN) package with exposed thermal pad (VSS) requiring PCB ground connection; 9 mm × 9 mm footprint; RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| USB_SSTXP_UP / USB_SSTXM_UP | Upstream SuperSpeed transmitter differential pair | Drives 5 Gbps differential signaling to host controller; requires controlled-impedance routing (85 Ω differential) |
| USB_SSRXP_UP / USB_SSRXM_UP | Upstream SuperSpeed receiver differential pair | Receives 5 Gbps differential signaling from host; AC-coupled with 0.1 µF capacitors per lane |
| PWRCTL1–PWRCTL4 / BATEN1–BATEN4 | Downstream port power/battery enable control | Active-high or active-low (configurable via PWRCTL_POL) GPIOs to drive external power switches per port |
| OVERCUR1z–OVERCUR4z | Downstream port overcurrent detection inputs | Active-low open-drain inputs monitoring external power switch fault outputs; asserted during overcurrent event |
| SCL/SMBCLK / SDA/SMBDAT | I2C/SMBus interface signals | Configurable via SMBUSz pin: I2C EEPROM programming (VID/PID/strings) or SMBus host communication |
| GRSTz | Global reset input | Active-low asynchronous reset; forces all internal registers to default state; must be held low ≥100 ns after power stabilization |
Key Features
| Feature | Design Value |
|---|---|
| Four-port USB 3.2 x1 Gen1 hub with MTT USB 2.0 | Enables full-speed concurrent operation of up to four SuperSpeed devices plus independent USB 2.0 peripherals without bandwidth contention |
| Hardware battery charging mode selection | Eliminates firmware dependency for DCP/CDP/ACP compliance; pin-strapped mode initialization ensures immediate charging readiness on power-up |
| Dedicated per-port power and overcurrent control | Allows individual port disable during fault conditions, preserving functionality on remaining ports-critical for mission-critical docking systems |
| I2C/SMBus + OTP + EEPROM configuration flexibility | Supports factory-programmed VID/PID and runtime reconfiguration of port behavior, strings, and PHY settings without mask changes |
| Single 24 MHz clock source | Reduces BOM count and layout complexity versus multi-clock solutions; supports both crystal (with 1 MΩ feedback) and oscillator inputs |
Applications
| Computer Docking Stations | USB-C Monitor Hubs |
|---|---|
Use Scenario: A compact desktop dock connects laptop via USB-C to provide four downstream USB-A ports, video output, and Ethernet. IC Role / Device Role / Timing Role: TUSB8042ARGCR acts as the primary USB 3.2 hub, managing upstream SuperSpeed bandwidth allocation and enabling simultaneous high-bandwidth storage and low-latency HID device operation. Use Value: Per-port power switching isolates faults (e.g., shorted USB stick), preventing system-wide disconnect; ACP/DCP modes ensure fast charging of connected smartphones without host enumeration. |
Use Scenario: A 4K monitor integrates USB 3.2 hub functionality to extend laptop connectivity while displaying video over DisplayPort Alt Mode. IC Role / Device Role / Timing Role: TUSB8042ARGCR serves as the embedded USB hub, coordinating upstream bandwidth between DP Alt Mode and USB data paths, and enabling USB 2.0 HID (keyboard/mouse) alongside USB 3.2 storage. Use Value: Hardware-based battery charging eliminates reliance on host OS drivers for charging negotiation; MTT architecture prevents USB 2.0 keyboard lag during SSD transfers. |
| Set-Top Box Expansion | Industrial Thin Client Hub |
Use Scenario: A streaming media box adds external USB storage, webcam, and Bluetooth adapter via a four-port hub module. IC Role / Device Role / Timing Role: TUSB8042ARGCR functions as the system's USB expansion hub, handling mixed-speed traffic (SS SSD, HS webcam, FS Bluetooth) with deterministic latency. Use Value: Ganged power mode simplifies power design when all ports share one load switch; YD/T 1591-2009 DCP compliance ensures compatibility with regional mobile devices. |
Use Scenario: An industrial thin client uses a ruggedized USB hub to connect barcode scanner, magnetic stripe reader, and flash drive in factory automation. IC Role / Device Role / Timing Role: TUSB8042ARGCR provides robust, ESD-hardened (±2 kV HBM) USB connectivity with hardware-enforced overcurrent protection per port. Use Value: Dedicated OVERCURz inputs enable immediate port-level shutdown during cable short events-preventing brownouts in 24 V DC-powered systems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 3.2 hub applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Microchip USB5804B | 4-port USB 3.2 Gen1 hub with integrated USB 2.0 MTT; supports same 24 MHz clock; differs in pinout, register map, and lacks native ACP auto-scan mode | Requires firmware-based charging mode sequencing; no hardware ACP3→DCP transition; supports industrial temp (–40°C to 85°C) in same RGC package | Select when long-term industrial temperature range is required and ACP auto-scan is not critical; verify layout compatibility due to different pin assignments. |
| Renesas uPD720210 | 4-port USB 3.0 hub with USB 2.0 MTT; older Gen1 spec (USB 3.0 vs USB 3.2); identical 64-pin QFN but different pin functions and power rail requirements (1.05 V core) | Lacks YD/T 1591-2009 DCP compliance and Galaxy charging support; supports legacy BIOS enumeration but no I2C-based string customization | Choose for cost-sensitive legacy designs where USB 3.2 feature set and modern charging standards are not required; confirm thermal derating for 70°C operation. |
Compared with Microchip USB5804B and Renesas uPD720210, the TUSB8042ARGCR uniquely delivers hardware-automated ACP mode cycling, YD/T 1591-2009 DCP compliance, and unified I2C/SMBus configurability-reducing firmware overhead and accelerating time-to-market for consumer docking and monitor applications.
Availability
TUSB8042ARGCR is available at Aetrix Electronics and suitable for computer docking stations, USB-C monitor hubs, set-top box expansion modules, and industrial thin client systems requiring stable component supply, full-speed USB 3.2 Gen1 throughput, and certified battery charging functionality.
Supply support for TUSB8042ARGCR 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 signal chain solutions.
The TUSB8042ARGCR belongs to TI's USB Hub IC product line, designed specifically for high-reliability, mixed-speed peripheral expansion in space-constrained consumer and industrial systems requiring seamless USB 3.2 interoperability and robust charging support.
FAQ
What USB speed modes does the TUSB8042ARGCR support on its upstream and downstream ports?
The TUSB8042ARGCR supports USB 3.2 x1 Gen1 (5 Gbps) SuperSpeed operation on both upstream and downstream ports, plus backward-compatible USB 2.0 high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps). Downstream speed is dynamically limited by the upstream port's capability: if upstream only supports HS/FS/LS, SuperSpeed is disabled on all downstream ports. This behavior is enforced in hardware without firmware intervention.
How is battery charging mode configured on the TUSB8042ARGCR?
Battery charging mode on the TUSB8042ARGCR is configured at hardware reset via strapping pins (AUTOENz, FULLPWRMGMTz, GANGED, PWRCTL_POL) and stored in the Battery Charging Support register. It supports DCP (YD/T 1591-2009 compliant), CDP, and three ACP modes (ACP1–ACP3) with automatic transition sequence (ACP3 → ACP2 → ACP1 → DCP) when upstream is unconnected. No firmware or host driver is needed for basic charging operation.
Does the TUSB8042ARGCR require an external crystal, or can it use an oscillator?
The TUSB8042ARGCR accepts either a 24 MHz fundamental-mode crystal across XI/XO pins (requiring a 1 MΩ feedback resistor) or a 24 MHz CMOS oscillator driving the XI pin directly (XO left unconnected). Both options satisfy the timing requirements for USB 3.2 Gen1 link training and packet timing; oscillator use simplifies layout and improves startup reliability in noisy environments.
What package type and thermal characteristics apply to the TUSB8042ARGCR?
The TUSB8042ARGCR uses a 64-pin RGC (VQFN) package measuring 9 mm × 9 mm with an exposed thermal pad (VSS) that must be soldered to a PCB ground plane. Its junction-to-ambient thermal resistance (RθJA) is 26 °C/W. The commercial-grade device is rated for 0°C to 70°C ambient operation, with maximum junction temperature of 105°C under recommended operating conditions.
Can the TUSB8042ARGCR be configured to operate USB 2.0 only on specific downstream ports?
Yes, the TUSB8042ARGCR supports per-port USB 2.0-only mode via the USB 2.0 Only Port Register (address 0x54). When enabled for a given downstream port, SuperSpeed transceivers for that port are disabled, reducing power consumption and EMI. This setting persists across resets when stored in I2C EEPROM or SMBus memory, allowing flexible mixed-mode hub configurations without hardware modification.
TUSB8042ARGCR 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:
- 650mA
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Supplier Device Package:
- 64-VQFN (9x9)
- Grade:
- -
- Qualification:
- -
TUSB8042ARGCR FAQ
1.How can I place an order for TUSB8042ARGCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB8042ARGCR 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 TUSB8042ARGCR reliable?
The price and inventory of TUSB8042ARGCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB8042ARGCR is usually 5 days.
3.What payment methods are accepted for TUSB8042ARGCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB8042ARGCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB8042ARGCR?
TUSB8042ARGCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB8042ARGCR 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 TUSB8042ARGCR?
For technical support, including TUSB8042ARGCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB8042ARGCR requirements.
6.How does Aetrix verify that TUSB8042ARGCR is sourced from the original manufacturer or authorized distributors?
All TUSB8042ARGCR 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 TUSB8042ARGCR meets industry standards.
7.What is the process for return or replacement of TUSB8042ARGCR?
All TUSB8042ARGCR units undergo pre-shipment inspection (PSI). If there is an issue with TUSB8042ARGCR, 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 TUSB8042ARGCR part is unused and in its original packaging.
Return procedure for TUSB8042ARGCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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