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Texas Instruments TUSB2036VFG4
- Part No.:
- TUSB2036VFG4
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 32-LQFP
- Datasheet:
-
TUSB2036VFG4.pdf
- Description:
- IC HUB CONTROLLER USB 2.0 32LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,068
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Product details
Overview
TUSB2036VFG4 from Texas Instruments is a 3.3-V, USB 2.0–compliant 2- or 3-port hub IC with integrated transceivers, programmable downstream port count (2 or 3), bus/self-powered mode selection, and optional serial EEPROM interface for custom VID/PID. It supports full-speed (12 Mb/s) and low-speed (1.5 Mb/s) downstream devices and is used in embedded USB expansion solutions such as docking stations and peripheral hubs.
For engineers reviewing the TUSB2036VFG4 datasheet, TUSB2036VFG4 pinout, TUSB2036VFG4 application, or TUSB2036VFG4 equivalent, key selection criteria include its HLQFP-32 package, DP0PUR pullup disable function for dynamic bus/self-power switching, ganged/per-port overcurrent reporting via OVRCUR pins, and MODE-selectable 6-MHz crystal or 48-MHz external clock operation.
Technical Context
The TUSB2036VFG4 implements a digital state machine-not firmware-enabling zero-host-driver dependency and seamless OS compatibility. Its integrated USB transceivers handle upstream (DP0/DM0) and up to three downstream (DP1–DP3/DM1–DM3) differential pairs with automatic slew-rate adaptation for full-speed and low-speed device attachment.
Power management is configurable via BUSPWR (bus/self-powered mode), EEDATA/GANGED (ganged vs. per-port overcurrent detection), and NP3/NPINT[1:0] (port count and permanent attachment mapping). The DP0PUR output disables the DP0 pullup resistor for 15 ms after reset or BUSPWR transition, enabling robust onboard power-source arbitration.
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 auto-slew-rate control. |
| Port Configuration | Programmable 2- or 3-port hub; NP3 pin selects count; NPINT[1:0] defines permanently attached ports per USB descriptor. |
| Supply Voltage | 3.3 V nominal (3.0–3.6 V); consumes 40 mA active, 1 µA in suspend mode. |
| Clock Options | MODE pin selects 6-MHz crystal (XTAL1/XTAL2) with internal APLL or 48-MHz external clock on XTAL1/CLK48. |
| Overcurrent Handling | OVRCUR1–OVRCUR3 are active-low, noise-filtered inputs; support ganged or per-port detection with 2-ms sampling window. |
| Power Control | PWRON1–PWRON3 are push-pull, active-low outputs driving external power switches; eliminate need for pullup resistors. |
| EEPROM Interface | Enabled by EXTMEM = low; EECLK/EEDATA provide 3-state serial interface for custom VID/PID; EEDATA doubles as GANGED select when EXTMEM = high. |
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 ports; slew rate automatically adapts to attached device speed. |
| DP0PUR | DP0 pullup resistor disable output | Drives high 15 ms after RESET assertion or BUSPWR logic change; enables clean bus/self-power dynamic switching. |
| PWRON1–PWRON3 | Port power enable outputs | Push-pull, active-low signals controlling external 5-V power switches; no external pullups required. |
| OVRCUR1–OVRCUR3 | Overcurrent detection inputs | Active-low, noise-filtered inputs sampled every 2 ms; used individually (per-port) or tied (ganged). |
| BUSPWR | Power source mode indicator | Active-low input: low = bus-powered, high = self-powered; must be static during operation. |
| MODE | Clock source select | Low = 6-MHz crystal + APLL; high = 48-MHz external clock; bypasses oscillator and APLL. |
| NP3 | Port count configuration | Active-low input: low = 3-port mode, high = 2-port mode; sets total number of downstream ports. |
| EXTMEM | EEPROM interface enable | High = disable EEPROM; use default VID/PID ("General Purpose USB Hub"); low = enable EECLK/EEDATA. |
| SUSPND | Suspend status output | Active-high signal indicating USB suspend state; used to gate external logic power-down. |
Key Features
| Feature | Design Value |
|---|---|
| No-firmware architecture | Digital state machine eliminates microcontroller, flash, and firmware development; reduces BOM and qualification effort. |
| Dynamic power-source arbitration | DP0PUR output simplifies implementation of onboard bus/self-power switching circuits without external timing components. |
| Ganged or per-port overcurrent reporting | EEDATA/GANGED pin selects detection mode; supports cost-optimized (ganged) or fault-isolating (per-port) system designs. |
| Flexible clock sourcing | MODE-selectable 6-MHz crystal (for suspend/resume) or 48-MHz oscillator (for board-level clock reuse) avoids dedicated clock IC. |
| Integrated transceivers | Fully compliant USB 2.0 PHYs on all ports reduce external component count and layout complexity versus discrete PHY + hub controller. |
Applications
| Desktop Docking Station | Industrial USB Peripheral Hub |
|---|---|
|
Use Scenario: Adds multiple USB ports (keyboard, mouse, storage) to thin-client workstations via single upstream connection. IC Role / Device Role / Timing Role: USB 2.0 hub controller managing upstream enumeration, downstream port power sequencing, and suspend/resume coordination. Use Value: Enables compact, fanless docking solutions with deterministic 12-Mb/s bandwidth allocation and low 1-µA suspend current. |
Use Scenario: Centralized USB connectivity for programmable logic controllers (PLCs) with field-serviceable peripherals. IC Role / Device Role / Timing Role: Robust hub IC supporting hot-plug, per-port overcurrent protection, and industrial temperature range (0°C to 70°C). Use Value: Reduces field failure risk via noise-filtered OVRCUR inputs and push-pull PWRON outputs compatible with 3.3-V logic interfaces. |
| Embedded Medical Device Interface | USB-C Accessory Adapter |
|
Use Scenario: Provides isolated USB host access to diagnostic sensors and data loggers inside Class II medical enclosures. IC Role / Device Role / Timing Role: Bus-powered hub with DP0PUR-controlled pullup disable ensures reliable enumeration during power-source handoff between battery and wall adapter. Use Value: Eliminates need for external reset timers or level shifters, lowering safety certification burden and bill-of-materials cost. |
Use Scenario: Enables legacy USB-A peripherals to connect to USB-C hosts via compact dongle with integrated hub and power delivery negotiation. IC Role / Device Role / Timing Role: 2-port hub (NP3 = high) with self-powered mode (BUSPWR = high) and EEPROM-loaded vendor-specific descriptors. Use Value: Supports custom VID/PID and compound-device configuration (NPINT[1:0] = 01) for seamless OS driver recognition and branding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB hub applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMSC USB2514B | 4-port, integrated 5-V power switches; requires external EEPROM for VID/PID; no DP0PUR function. | Higher port count but larger QFN-48 package; lacks dynamic pullup disable for power-source arbitration. | Choose when 4 downstream ports and integrated power switching outweigh need for compact 32-pin footprint and DP0PUR timing control. |
| Microchip USB5744 | 4-port, USB 2.0 hub with integrated USB 3.0 companion controller; supports USB Battery Charging v1.2; no HLQFP option. | Targeted at dual-mode (USB 2.0 + 3.0) systems; uses 64-pin QFN; higher power consumption (60 mA active). | Choose when backward-compatible USB 3.0 host support and BC1.2 charging are required, and board space allows larger package. |
Compared with SMSC USB2514B and Microchip USB5744, the TUSB2036VFG4 offers the smallest footprint (HLQFP-32), lowest active and suspend current, and unique DP0PUR timing control-making it optimal for space-constrained, battery-aware, or dynamically powered USB expansion nodes.
Availability
TUSB2036VFG4 is available at Aetrix Electronics and suitable for desktop docking stations, industrial USB peripheral hubs, embedded medical device interfaces, and USB-C accessory adapters requiring stable component supply and long-term lifecycle support.
Supply support for TUSB2036VFG4 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 industrial interface solutions.
The TUSB2036VFG4 belongs to TI's USB hub product line, designed specifically for cost-sensitive, low-power, and firmware-free USB 2.0 expansion in space-constrained embedded systems.
FAQ
What is the function of the DP0PUR pin on the TUSB2036VFG4?
The DP0PUR pin on the TUSB2036VFG4 is an active-high output that disables the DP0 pullup resistor for 15 ms after a system reset or any logic-level change on the BUSPWR pin. This timing behavior enables reliable implementation of onboard bus/self-power dynamic switching circuitry without external RC timing components. The TUSB2036VFG4 uses this feature to ensure correct USB enumeration sequence when power source changes occur, making it especially valuable in dual-power applications like portable docking stations.
Does the TUSB2036VFG4 require firmware or a microcontroller to operate?
No, the TUSB2036VFG4 does not require firmware or a microcontroller. It is implemented using a dedicated digital state machine that handles all USB protocol layers-including enumeration, transaction scheduling, and suspend/resume-without external code. This architecture eliminates firmware development, flash memory, and associated qualification overhead. The TUSB2036VFG4 works seamlessly with any operating system that supports standard USB stack drivers, reducing time-to-market for USB expansion products.
How does the TUSB2036VFG4 support both bus-powered and self-powered modes?
The TUSB2036VFG4 supports both bus-powered and self-powered modes via the BUSPWR pin: pulled low for bus-powered operation (drawing 5 V from upstream host), and pulled high (to 3.3 V) for self-powered mode (using local 5-V supply). The OCPROT/PWRSW pin reports overcurrent protection (bus-powered) or power-switching capability (self-powered) to the host through the hub descriptor. The TUSB2036VFG4 requires external power-management ICs (e.g., TPS2044) to implement actual 5-V switching and overcurrent detection per USB specification.
Can the TUSB2036VFG4 be configured for exactly two downstream ports?
Yes, the TUSB2036VFG4 can be configured for exactly two downstream ports using the NP3 pin: setting NP3 = high selects 2-port mode, while NP3 = low enables 3-port operation. Additionally, NPINT[1:0] pins define how many ports have permanently attached devices (e.g., NPINT[1:0] = 01 indicates Port 1 is fixed, Ports 2–3 are removable), ensuring accurate USB hub descriptor reporting to the host. This configurability allows the same TUSB2036VFG4 silicon to serve multiple product variants without hardware redesign.
What clock sources are supported by the TUSB2036VFG4, and how is selection controlled?
The TUSB2036VFG4 supports two clock sources: a 6-MHz crystal (via XTAL1/XTAL2) with internal APLL generating 48 MHz, or a 48-MHz external clock applied to XTAL1/CLK48. Selection is controlled by the MODE pin: MODE = low activates the crystal path and APLL; MODE = high bypasses the APLL and uses the external clock directly. This flexibility allows designers to reuse existing board clocks or optimize for low-power suspend (crystal) versus simplified layout (oscillator), with the TUSB2036VFG4 maintaining full USB 2.0 compliance in both configurations.
TUSB2036VFG4 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:
- -
TUSB2036VFG4 FAQ
1.How can I place an order for TUSB2036VFG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB2036VFG4 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 TUSB2036VFG4 reliable?
The price and inventory of TUSB2036VFG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB2036VFG4 is usually 5 days.
3.What payment methods are accepted for TUSB2036VFG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB2036VFG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB2036VFG4?
TUSB2036VFG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB2036VFG4 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 TUSB2036VFG4?
For technical support, including TUSB2036VFG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB2036VFG4 requirements.
6.How does Aetrix verify that TUSB2036VFG4 is sourced from the original manufacturer or authorized distributors?
All TUSB2036VFG4 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 TUSB2036VFG4 meets industry standards.
7.What is the process for return or replacement of TUSB2036VFG4?
All TUSB2036VFG4 units undergo pre-shipment inspection (PSI). If there is an issue with TUSB2036VFG4, 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 TUSB2036VFG4 part is unused and in its original packaging.
Return procedure for TUSB2036VFG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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