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Texas Instruments TUSB2036VFRG4
- Part No.:
- TUSB2036VFRG4
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 32-LQFP
- Datasheet:
-
TUSB2036VFRG4.pdf
- Description:
- IC HUB CONTROLLER USB 2.0 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,715
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Product details
Overview
TUSB2036VFRG4 from Texas Instruments is a 3.3-V, 2- or 3-port USB 2.0 full-speed hub IC with integrated transceivers, programmable port count (via NP3 pin), dual clock source support (6-MHz crystal or 48-MHz external clock), and ganged/per-port power switching control - deployed in docking stations, embedded host systems, and peripheral expansion modules.
For engineers reviewing the TUSB2036VFRG4 datasheet, TUSB2036VFRG4 pinout, TUSB2036VFRG4 application, or TUSB2036VFRG4 equivalent, key selection considerations include bus/self-powered mode configuration (BUSPWR), EEPROM-enabled VID/PID customization (EXTMEM/EEDATA), DP0PUR-controlled dynamic pullup disable for bus/self-power switching, and per-port overcurrent reporting (OVRCUR1–3) with noise filtering.
Technical Context
The TUSB2036VFRG4 implements a digital state machine-not firmware-based-enabling zero-host-driver dependency and seamless OS compatibility. It integrates fully compliant USB 2.0 transceivers on one upstream (DP0/DM0) and up to three downstream ports (DP1–DP3/DM1–DM3), each auto-adapting slew rate for full-speed (12 Mb/s) or low-speed (1.5 Mb/s) device attachment.
Power management is hardware-configured: BUSPWR selects bus- or self-powered mode; EEDATA/GANGED sets ganged vs. per-port overcurrent detection; PWRON1–PWRON3 are push-pull outputs driving external power switches (e.g., TPS2044); and OCPROT/PWRSW reports protection or power-switching capability to the USB host via hub descriptor bits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Compliance | Fully compliant USB 2.0 full-speed hub (TID #30220242); supports low-speed devices via automatic slew-rate adaptation. |
| Port Configuration | 1 upstream + 2 or 3 downstream ports; NP3 pin selects 3-port (low) or 2-port (high); NPINT0/NPINT1 define permanently attached ports for hub descriptor reporting. |
| Supply Voltage | 3.3 V ±10% (3.0–3.6 V); draws 40 mA typical in active mode, 1 µA in suspend mode. |
| Clock Input Options | 6-MHz crystal (XTAL1/XTAL2) with internal APLL generating 48 MHz, or direct 48-MHz clock (XTAL1/CLK48) with MODE = high and APLL bypassed. |
| Overcurrent Handling | OVRCUR1–OVRCUR3 are active-low, noise-filtered inputs sampled every 2 ms; valid overcurrent requires two consecutive samples; OVRCUR3 has internal pull-up for 2-port operation. |
| EEPROM Interface | Enabled when EXTMEM = low; EECLK and EEDATA/GANGED become 3-state serial interface pins; supports custom VID/PID storage and sharing with other devices. |
| Reset & Control Logic | Active-low RESET with hysteresis; SUSPND output signals suspend state to external logic; DP0PUR disables DP0 pullup resistor for 15 ms after reset or BUSPWR change. |
Pinout & Package
Package: 32-pin HLQFP (7.00 mm × 7.00 mm, 0.8-mm pitch), JEDEC S-PQFP-G compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DP0 / DM0 | Upstream USB differential pair | Connects to host controller; forms root port interface with full-speed/low-speed auto-detection. |
| DP1–DP3 / DM1–DM3 | Downstream USB differential pairs | Support up to three downstream devices; slew rate automatically adjusted per attached device speed. |
| BUSPWR | Power source mode select | Active-low input: tied low for bus-powered mode (reports power-switched ports), high for self-powered mode (reports overcurrent protection). |
| PWRON1–PWRON3 | Port power control outputs | Push-pull, active-low signals driving external 5-V power switches; eliminate need for external pullups. |
| OVRCUR1–OVRCUR3 | Overcurrent status inputs | Active-low, noise-filtered inputs; used individually (per-port) or tied together (ganged); OVRCUR3 has internal pull-up for 2-port config. |
| DP0PUR | DP0 pullup resistor disable | Open-drain output; floats for 15 ms after RESET assertion or BUSPWR transition, then drives high to disable onboard DP0 pullup for dynamic power-mode switching. |
| EXTMEM | EEPROM interface enable | High = disable EEPROM interface (use default VID/PID); low = enable EECLK/EEDATA for custom enumeration strings. |
| MODE | Clock source select | Low = use 6-MHz crystal + internal APLL; high = bypass APLL and use 48-MHz external clock on XTAL1/CLK48. |
| SUSPND | Suspend status indicator | Active-high output; driven high during USB suspend to enable external logic power-down. |
| RESET | Asynchronous initialization | Active-low TTL input with hysteresis; must be asserted ≥100 µs at power-up; clock must be stable during final 60 µs. |
Key Features
| Feature | Design Value |
|---|---|
| No firmware required | Digital state machine architecture eliminates microcontroller, flash, and firmware development - reduces BOM cost and qualification time. |
| Dynamic bus/self-power switching | DP0PUR pin enables clean 3-ms DP0 pullup disable after reset or BUSPWR change, simplifying onboard power-source arbitration circuitry. |
| Ganged or per-port overcurrent reporting | EEDATA/GANGED pin selects detection mode; supports cost-optimized (ganged) or robust (per-port) system-level fault isolation without redesign. |
| 3.3-V push-pull PWRON outputs | Eliminates external pullup resistors on PWRON1–PWRON3, reducing board area and enabling direct drive of TI TPS20xx-series power switches. |
| Crystal or oscillator clock flexibility | MODE pin selects between 6-MHz crystal (supports suspend/resume) or 48-MHz oscillator (simplifies layout), with internal APLL bypass when needed. |
| Noise-immune OVRCUR inputs | Hardware debouncing filters voltage spikes; requires two consecutive 2-ms samples to trigger overcurrent response - prevents false trips in noisy environments. |
Applications
| Desktop Docking Station | Embedded Industrial Host |
|---|---|
|
Use Scenario: Adds USB peripherals (keyboard, mouse, storage) to thin-client terminals via single upstream connection. IC Role / Device Role / Timing Role: USB 2.0 hub IC providing 3 downstream ports with per-port power control and suspend/resume signaling. Use Value: Enables hot-plug support and individual port power cycling without host intervention, improving system reliability and user experience. |
Use Scenario: Integrates USB connectivity into programmable logic controllers (PLCs) for field device configuration and data logging. IC Role / Device Role / Timing Role: Bus-powered hub IC managing low-speed sensors and full-speed USB-to-serial adapters in harsh industrial environments. Use Value: Reduces external component count with integrated transceivers, noise-filtered OVRCUR inputs, and 3.3-V push-pull PWRON outputs compatible with industrial-grade power switches. |
| Medical Diagnostic Peripheral | USB-C Expansion Module |
|
Use Scenario: Connects ultrasound probes and patient monitors to central diagnostic workstations using isolated USB paths. IC Role / Device Role / Timing Role: Self-powered hub IC with ganged overcurrent protection and EEPROM-stored custom VID/PID for FDA-compliant device identification. Use Value: Ensures deterministic enumeration and regulatory traceability while meeting IEC 60601-1 creepage/clearance requirements via discrete power domain isolation. |
Use Scenario: Adds legacy USB-A ports to USB-C laptops via compact adapter with integrated power delivery negotiation. IC Role / Device Role / Timing Role: 2-port hub IC configured via NP3 = high, using MODE = low for crystal-based clock to maintain low EMI during suspend. Use Value: Supports simultaneous suspend/resume across all downstream ports with SUSPND output coordinating system-wide power sequencing. |
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 | 4-port, integrated 5-V power switches, no crystal option (48-MHz only), requires external EEPROM for VID/PID. | Higher port count and integrated power FETs reduce external BOM but increase thermal load; lacks DP0PUR-style dynamic pullup control. | Preferred when 4 ports and integrated power switching are required; not suitable for crystal-based low-power suspend designs. |
| TUSB2077ARGZR | 7-port hub, supports USB Battery Charging v1.2, requires external 3.3-V LDO, no DP0PUR pin, different pinout and package (48-pin VQFN). | Targets high-density docking solutions; lacks dynamic bus/self-power switching logic and noise-filtered OVRCUR sampling. | Chosen for multi-peripheral expansion where port count outweighs power-mode flexibility; incompatible pinout prevents drop-in replacement. |
Compared with USB2514B-AEZG and TUSB2077ARGZR, the TUSB2036VFRG4 uniquely balances minimal external components (no LDO, no integrated FETs), crystal-based suspend capability, and hardware-assisted bus/self-power arbitration - making it optimal for cost-sensitive, thermally constrained, or dynamically powered embedded hubs.
Availability
TUSB2036VFRG4 is available at Aetrix Electronics and suitable for desktop docking stations, embedded industrial hosts, medical diagnostic peripherals, and USB-C expansion modules requiring stable component supply, long-term lifecycle support, and TI-qualified production lots.
Supply support for TUSB2036VFRG4 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 since 1930.
The TUSB2036VFRG4 belongs to TI's USB physical layer (PHY) and hub IC product line, designed specifically for cost-optimized, firmware-free USB 2.0 expansion in space-constrained and thermally sensitive embedded systems.
FAQ
What is the function of the DP0PUR pin on the TUSB2036VFRG4?
The DP0PUR pin on the TUSB2036VFRG4 is an open-drain output that disables the internal DP0 pullup resistor for 15 ms after a system reset or any logic-level change on the BUSPWR pin. This timing allows external circuitry to cleanly arbitrate between bus-powered and self-powered modes before enumeration begins. The TUSB2036VFRG4 uses this feature to simplify onboard dynamic power-source switching without requiring additional logic gates or timers.
Does the TUSB2036VFRG4 require external firmware or software drivers?
No, the TUSB2036VFRG4 does not require external firmware or custom drivers. It implements a fixed-function digital state machine - not a microcontroller - and is fully compatible with standard USB 2.0 host stack implementations across Windows, Linux, and macOS. The TUSB2036VFRG4 enumerates as a generic hub unless custom VID/PID are loaded via external EEPROM, and no host-side driver modification is needed for basic operation.
How does the TUSB2036VFRG4 handle overcurrent detection in ganged versus per-port mode?
In ganged mode (EEDATA/GANGED = high), any OVRCUR input (OVRCUR1–3) can trigger a global power-down of all downstream ports; all PWRON outputs transition simultaneously. In per-port mode (EEDATA/GANGED = low), each OVRCUR pin independently controls its corresponding PWRON signal - so only the affected port loses power. The TUSB2036VFRG4 applies hardware noise filtering to all OVRCUR inputs, requiring two consecutive 2-ms valid samples before asserting overcurrent response.
Can the TUSB2036VFRG4 operate with a 48-MHz oscillator instead of a crystal?
Yes, the TUSB2036VFRG4 supports direct 48-MHz clock input via the XTAL1/CLK48 pin when the MODE pin is held high, which bypasses the internal APLL and oscillator cell. In this configuration, XTAL2 must be left unconnected. The TUSB2036VFRG4 accepts TTL-level 48-MHz clocks but requires the oscillator output voltage to remain within 0–3.6 V. Note that oscillator-based operation prevents true low-power suspend, as the clock cannot be stopped during suspend.
What package and RoHS status does the TUSB2036VFRG4 have?
The TUSB2036VFRG4 is packaged in a 32-pin HLQFP (7.00 mm × 7.00 mm, 0.8-mm pitch) with lead-free (RoHS-compliant) finish and green molding compound. It meets JEDEC standard S-PQFP-G for low-profile quad flat pack and is rated for 0°C to 70°C operating ambient temperature. The TUSB2036VFRG4 is manufactured in TI's ISO 9001-certified facilities and conforms to IPC/JEDEC J-STD-020 moisture sensitivity level 3 (MSL-3).
TUSB2036VFRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 32-LQFP
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Hub Controller
- Interface:
- USB
- Standards:
- USB 2.0
- Voltage - Supply:
- 3V ~ 3.6V
- Current - Supply:
- 40mA
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 32-LQFP (7x7)
- Grade:
- -
- Qualification:
- -
TUSB2036VFRG4 FAQ
1.How can I place an order for TUSB2036VFRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB2036VFRG4 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 TUSB2036VFRG4 reliable?
The price and inventory of TUSB2036VFRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB2036VFRG4 is usually 5 days.
3.What payment methods are accepted for TUSB2036VFRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB2036VFRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB2036VFRG4?
TUSB2036VFRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB2036VFRG4 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 TUSB2036VFRG4?
For technical support, including TUSB2036VFRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB2036VFRG4 requirements.
6.How does Aetrix verify that TUSB2036VFRG4 is sourced from the original manufacturer or authorized distributors?
All TUSB2036VFRG4 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 TUSB2036VFRG4 meets industry standards.
7.What is the process for return or replacement of TUSB2036VFRG4?
All TUSB2036VFRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TUSB2036VFRG4, 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 TUSB2036VFRG4 part is unused and in its original packaging.
Return procedure for TUSB2036VFRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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