My Inquiry
My Account
Texas Instruments TUSB8043AIRGCT
- Part No.:
- TUSB8043AIRGCT
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
TUSB8043AIRGCT.pdf
- Description:
- USB TRANSCEIVER
- Quantity:
- Payment:
- Shipping:
Inventory:854
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TUSB8043AIRGCT from Texas Instruments is a four-port USB 3.2 x1 Gen1 (5 Gbps) hub IC with integrated USB 2.0 MTT architecture, supporting simultaneous SuperSpeed and high-speed upstream connectivity and per-port power control with battery charging modes (CDP/DCP/ACP). It integrates an internal USB HID-to-I2C bridge for configuration and EEPROM programming, and operates from 1.1-V and 3.3-V supplies in a 64-pin VQFN package.
For engineers reviewing the TUSB8043AIRGCT datasheet, TUSB8043AIRGCT pinout, TUSB8043AIRGCT application, or TUSB8043AIRGCT equivalent, key selection considerations include its dual-mode USB 3.2/2.0 hub functionality, 4 downstream ports plus dedicated I2C-capable internal port, 5-Gbps SuperSpeed support, configurable power switching (per-port or ganged), and compliance with YD/T 1591-2009 for DCP mode.
Technical Context
The TUSB8043AIRGCT implements a Multi-Transaction Translator (MTT) USB 2.0 hub with four independent transaction translators and two asynchronous endpoint buffers per translator, enabling concurrent full-speed/low-speed device handling. Its USB 3.2 x1 Gen1 interface supports U0/U1/U2 link states and dynamic speed negotiation based on upstream connection capability.
It features a dedicated internal USB 2.0-only downstream port configured as a USB HID device for I2C master access-operating at high-speed or full-speed matching the upstream port-and supports 100-kHz/400-kHz I2C clock stretching, OTP/EEPROM/SMBus-based configuration of VID/PID/port settings, and 128-bit UUID generation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Standard | USB 3.2 x1 Gen1 (5 Gbps) + USB 2.0 compliant; supports SuperSpeed, high-speed, full-speed, and low-speed downstream operation |
| Port Count | Four external downstream USB ports + one internal USB 2.0-only port for HID-to-I2C bridge functionality |
| Power Supplies | 1.1-V core (VDD) and 3.3-V I/O (VDD33); supports battery charging via CDP/DCP/ACP modes per port |
| Package | 64-pin VQFN (RGC), 9.0 mm × 9.0 mm, with exposed thermal pad tied to ground |
| Operating Temp | 0°C to 70°C (commercial grade); TUSB8043AIRGCT is the commercial variant (not industrial) |
| Configuration | Configurable via pin strapping, OTP ROM, or I2C/SMBus slave interface for VID/PID, port customization, and string descriptors |
| I2C Interface | Integrated I2C master supporting 100 kHz/400 kHz, clock stretching, and EEPROM programming via USB HID channel |
Pinout & Package
Package: 64-pin VQFN (RGC), 9.0 mm × 9.0 mm, with exposed thermal pad (VSS) requiring PCB ground connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| USB_SSTXP_UP / USB_SSTXM_UP | SuperSpeed upstream transmitter differential pair | Drives 5-Gbps USB 3.2 x1 Gen1 signals to host controller; requires controlled 90-Ω differential impedance routing |
| USB_SSRXP_UP / USB_SSRXM_UP | SuperSpeed upstream receiver differential pair | Receives 5-Gbps USB 3.2 x1 Gen1 signals from host; AC-coupled with 0.1-µF capacitors |
| USB_DP_UP / USB_DM_UP | USB 2.0 upstream transceiver | Handles high-speed/full-speed/low-speed signaling when SuperSpeed is disabled; shared with upstream port |
| PWRCTL1–PWRCTL4 / BATEN1–BATEN4 | Per-port power control & battery enable | Active-high or active-low (configurable) GPIOs controlling external power switches and enabling charging modes per downstream port |
| OVERCUR1z–OVERCUR4z | Per-port over-current detection inputs | Active-low open-drain inputs monitoring external power switch fault outputs; used for automatic port disable on over-current |
| SCL/SMBCLK & SDA/SMBDAT | I2C/SMBus interface | Configurable dual-mode interface for EEPROM programming or SMBus host communication; supports 400-kHz operation with clock stretching |
Key Features
| Feature | Design Value |
|---|---|
| Four-port USB 3.2 x1 Gen1 hub | Enables expansion of SuperSpeed USB hosts with backward-compatible USB 2.0 support across all downstream ports |
| Multi-transaction translator (MTT) | Provides four independent TTs with two async endpoint buffers each, eliminating bandwidth contention among low-speed/full-speed devices |
| Dedicated HID-to-I2C internal port | Allows host-side firmware to configure device parameters, program EEPROM, and manage peripherals without additional MCU resources |
| Battery charging support | Complies with USB Battery Charging 1.2, Galaxy Charging, and YD/T 1591-2009 DCP standards; includes ACP1–ACP3 auto-transition on upstream disconnect |
| Flexible configuration options | Supports pin-strapped defaults, OTP ROM, or runtime I2C/SMBus updates for VID/PID, port enable/disable, and custom strings (via EEPROM only) |
Applications
| Computer Docking Stations | USB-C Monitor Hubs |
|---|---|
Use Scenario: Expands a single USB-C host port into multiple USB-A 3.2 Gen1, USB-A 2.0, HDMI, and power delivery lanes in compact docking solutions. IC Role / Device Role / Timing Role: Acts as the primary USB 3.2 hub controller managing upstream link training, downstream enumeration, and per-port power policy enforcement. Use Value: Enables simultaneous 5-Gbps data transfer to storage and 480-Mbps HID/peripheral traffic without bandwidth contention via MTT architecture. | Use Scenario: Integrated into monitor bezels to provide USB peripheral connectivity (keyboard/mouse/webcam) alongside video and power pass-through. IC Role / Device Role / Timing Role: Functions as a compound USB device with internal HID-to-I2C bridge, allowing monitor firmware to expose USB HID controls and manage display-related I2C peripherals. Use Value: Eliminates need for separate microcontroller by enabling direct host-initiated I2C register reads/writes through standard USB HID class drivers. |
| Set-Top Box Expansion Hubs | Industrial USB Peripheral Aggregators |
Use Scenario: Adds USB 3.2 and USB 2.0 ports to media gateways for connecting external storage, wireless adapters, and input devices. IC Role / Device Role / Timing Role: Serves as a self-powered hub with ganged or per-port power switching, supporting CDP mode for charging connected remotes or streaming sticks. Use Value: Delivers compliant DCP charging (YD/T 1591-2009) and automatic ACP mode cycling when upstream is disconnected-critical for plug-and-play consumer deployment. | Use Scenario: Used in factory automation controllers to aggregate USB sensors, barcode scanners, and configuration tools into a single upstream interface. IC Role / Device Role / Timing Role: Operates as a robust, field-programmable hub with EEPROM-based configuration persistence and I2C-accessible status registers for diagnostics. Use Value: Supports in-system EEPROM reprogramming via USB 2.0 upstream port, enabling remote firmware updates and field calibration without hardware modification. |
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 |
|---|---|---|---|
| TUSB8041ARGTR | Single-chip 4-port USB 3.0 hub with identical RGC package and pinout; lacks internal HID-to-I2C port and ACP auto-transition logic | No native I2C bridge or Galaxy/YD-T 1591-2009 DCP support; limited battery charging flexibility | Select when I2C peripheral integration and advanced charging modes are unnecessary and cost optimization is prioritized |
| UPD720202K8-701-BAC-A | 4-port USB 3.0 hub with integrated PCIe-to-USB bridge; requires PCIe host interface instead of USB upstream | Designed for embedded systems with PCIe root complex; not a drop-in replacement for USB-upstream topologies | Select only when migrating from USB host controller to PCIe-based host architecture and needing integrated bridge functionality |
Compared with TUSB8043AIRGCT, TUSB8041ARGTR offers reduced feature set but lower BOM cost and identical footprint, while UPD720202K8-701-BAC-A shifts system architecture to PCIe-based host control-neither provides the integrated HID-to-I2C bridge or YD/T 1591-2009-compliant DCP mode essential for monitor/docking applications requiring zero-footprint peripheral management.
Availability
TUSB8043AIRGCT is available at Aetrix Electronics and suitable for computer docking stations, USB-C monitor hubs, and set-top box expansion modules requiring stable component supply, long-term lifecycle support, and industrial-grade traceability.
Supply support for TUSB8043AIRGCT 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 headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets.
The TUSB8043A product line delivers highly integrated USB 3.x hub solutions targeting space-constrained, power-aware applications such as monitors, docks, and consumer electronics where configurability, charging compliance, and embedded I2C control are critical.
FAQ
What USB standards does the TUSB8043AIRGCT support?
The TUSB8043AIRGCT supports USB 3.2 x1 Gen1 (5 Gbps) and USB 2.0 standards. It operates as a compound device capable of simultaneous SuperSpeed upstream connectivity and high-speed/full-speed/low-speed downstream operation. Downstream ports automatically downgrade to USB 2.0 only when the upstream connection lacks SuperSpeed capability. The TUSB8043AIRGCT fully complies with USB Battery Charging 1.2, including CDP, DCP (YD/T 1591-2009), and ACP modes.
Does the TUSB8043AIRGCT include an integrated USB HID-to-I2C bridge?
Yes, the TUSB8043AIRGCT includes a dedicated internal USB 2.0-only downstream port configured as a USB HID device that functions as an I2C master. This bridge supports 100-kHz and 400-kHz operation with clock stretching, enabling host software to read/write I2C peripherals and program external EEPROM without requiring a separate microcontroller. The TUSB8043AIRGCT uses this interface for runtime configuration and firmware updates.
What power management options does the TUSB8043AIRGCT offer for downstream ports?
The TUSB8043AIRGCT supports both per-port and ganged power switching via PWRCTL1–PWRCTL4 pins, with corresponding OVERCUR1z–OVERCUR4z inputs for over-current detection. Per-port mode allows independent power control and selective shutdown during faults; ganged mode synchronizes all port power states. The TUSB8043AIRGCT also enables battery charging modes (CDP/DCP/ACP) with polarity-selectable control signals and automatic ACP mode cycling when the upstream port is unconnected.
How is the TUSB8043AIRGCT configured for custom VID/PID and port behavior?
The TUSB8043AIRGCT supports configuration via pin strapping, OTP ROM, or I2C/SMBus slave interface. VID, PID, port enable/disable, and PHY settings can be stored in OTP or loaded dynamically via I2C. Manufacturer and product strings, plus serial numbers, require external I2C EEPROM or SMBus interface-OTP ROM does not support these fields. The TUSB8043AIRGCT also supports on-board EEPROM programming through its USB 2.0 upstream port using the HID-to-I2C bridge.
What is the operating temperature range for the TUSB8043AIRGCT?
As indicated by the "A" suffix and confirmed in the datasheet, the TUSB8043AIRGCT is the commercial-grade variant rated for operation from 0°C to 70°C ambient temperature. It is packaged in a 64-pin VQFN (RGC) with exposed thermal pad. The industrial-grade counterpart is TUSB8043AI, specified for –40°C to 85°C. The TUSB8043AIRGCT's thermal metrics include RθJA = 26°C/W and RθJB = 5.3°C/W, supporting reliable operation in thermally constrained enclosures.
TUSB8043AIRGCT 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:
- -40°C ~ 85°C (TA)
- Supplier Device Package:
- 64-VQFN (9x9)
- Grade:
- -
- Qualification:
- -
TUSB8043AIRGCT FAQ
1.How can I place an order for TUSB8043AIRGCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB8043AIRGCT 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 TUSB8043AIRGCT reliable?
The price and inventory of TUSB8043AIRGCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB8043AIRGCT is usually 5 days.
3.What payment methods are accepted for TUSB8043AIRGCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB8043AIRGCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB8043AIRGCT?
TUSB8043AIRGCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB8043AIRGCT 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 TUSB8043AIRGCT?
For technical support, including TUSB8043AIRGCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB8043AIRGCT requirements.
6.How does Aetrix verify that TUSB8043AIRGCT is sourced from the original manufacturer or authorized distributors?
All TUSB8043AIRGCT 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 TUSB8043AIRGCT meets industry standards.
7.What is the process for return or replacement of TUSB8043AIRGCT?
All TUSB8043AIRGCT units undergo pre-shipment inspection (PSI). If there is an issue with TUSB8043AIRGCT, 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 TUSB8043AIRGCT part is unused and in its original packaging.
Return procedure for TUSB8043AIRGCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TUSB8043AIRGCT Tags
-
PTN5150AHXMP
NXP Semiconductors
-
USB3740B-AI9-TR
Microchip Technology
-
USB3740B-AI2-TR
Microchip Technology
-
USB3300-EZK-TR
Microchip Technology
-
USB3300-EZK
Microchip Technology
-
FUSB340TMX
onsemi
-
FUSB302BMPX
onsemi
-
DP83826IRHBR
Texas Instruments
-
MCP2518FDT-E/QBB
Microchip Technology
-
FUSB302MPX
onsemi
-
MCP2518FDT-E/SL
Microchip Technology
-
FT260Q-R
FTDI, Future Technology Devices International Ltd
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
