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Texas Instruments TUSB8020BPHP
- Part No.:
- TUSB8020BPHP
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 48-PowerTQFP
- Datasheet:
-
TUSB8020BPHP.pdf
- Description:
- IC USB 3.0 HUB 2 PORT 48HTQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,416
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Product details
Overview
TUSB8020BPHP from Texas Instruments is a two-port USB 3.0 compliant hub IC supporting simultaneous SuperSpeed (5 Gbps), high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) connectivity on downstream ports, with integrated MTT architecture, battery charging support (CDP/DCP/AUTOMODE), and 48-pin HTQFP packaging - deployed in docking stations, monitors, and set-top boxes.
For engineers reviewing the TUSB8020BPHP datasheet, TUSB8020BPHP pinout, TUSB8020BPHP application, or TUSB8020BPHP equivalent, key selection considerations include per-port/ganged power switching, SMBus/I²C programmability for VID/PID/custom strings, 24-MHz crystal or oscillator clock input, and USB Battery Charging Specification Rev 1.2 + YD/T 1591-2009 compliance.
Technical Context
The TUSB8020BPHP implements a Multi-Transaction Translator (MTT) hub architecture with two independent transaction translators and four asynchronous endpoint buffers per translator, enabling concurrent high-bandwidth USB 2.0 device communication without bandwidth contention. It supports dynamic upstream link negotiation: SuperSpeed is disabled downstream when upstream connects only to USB 2.0 hosts, and both SuperSpeed and high-speed are disabled when upstream connects only to USB 1.x hosts.
Power management is configurable via hardware strapping (FULLPWRMGMTz, GANGED, PWRCTL_POL) or register control (REG_5h), enabling per-port or ganged power switching with overcurrent detection (OVERCUR1z/OVERCUR2z). Battery charging mode selection (CDP/DCP/AUTOMODE) is determined at reset by BATEN1/BATEN2 pin states, VBUS presence, and autoModeEnz register bit - with AUTOMODE defaulting to automatic divider-mode/DCP switching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Compliance | USB 3.0 (SuperSpeed), USB 2.0 (high/full/low-speed), USB Battery Charging Spec Rev 1.2, YD/T 1591-2009 |
| Data Rates | 5 Gbps (SuperSpeed), 480 Mbps (high-speed), 12 Mbps (full-speed), 1.5 Mbps (low-speed) |
| Supply Voltages | VDD = 0.99–1.26 V (1.1-V core); VDD33 = 3.0–3.6 V (3.3-V I/O) |
| Operating Temperature | 0°C to 70°C (commercial grade TUSB8020B variant) |
| Package | 48-pin HTQFP (PHP), 7.0 mm × 7.0 mm body, thermal pad |
| Power Consumption | 6 mA / 40 mA (USB 3.0 suspend / active with 2 SS devices); 93 mA / 364 mA (USB 3.0 host + 1 SS & 1 HS device in U0) |
| Clock Input | 24 MHz fundamental-mode crystal (12–24 pF load, ≤50 Ω ESR) or external oscillator |
Pinout & Package
48-pin HTQFP (PHP) package with exposed thermal pad; RoHS-compliant, moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| USB_SSTXP_UP / USB_SSTXM_UP | Upstream SuperSpeed TX differential pair | Drives 5-Gbps differential signaling to host controller; requires controlled-impedance PCB routing |
| USB_SSRXP_UP / USB_SSRXM_UP | Upstream SuperSpeed RX differential pair | Receives 5-Gbps differential signaling from host; includes integrated termination and equalization |
| USB_DP_UP / USB_DM_UP | Upstream USB 2.0 differential transceiver | Supports backward-compatible high/full/low-speed operation; shared with SuperSpeed via multiplexed PHY |
| PWRCTL1/BATEN1 & PWRCTL2/BATEN2 | Port 1/2 power control & battery enable | Configurable active-high/low polarity; sampled at reset to enable CDP/DCP/AUTOMODE per port |
| OVERCUR1z / OVERCUR2z | Downstream port overcurrent detection inputs | Active-low open-drain signals; used for per-port or ganged shutdown based on external power switch feedback |
| SCL/SMBCLK & SDA/SMBDAT | I²C/SMBus interface | Configurable via SMBUSz pin; supports EEPROM programming of VID/PID, port settings, and custom strings |
| GRSTz | Global power-on reset | Active-low asynchronous reset; brings all registers to default state; must be held low ≥3 ms after power stabilization |
Key Features
| Feature | Design Value |
|---|---|
| Multi-Transaction Translator (MTT) | Two independent TTs with four async endpoint buffers each - eliminates USB 2.0 bandwidth bottlenecks across multiple downstream devices |
| Battery Charging Modes | Per-port CDP (upstream-connected), DCP (upstream-unconnected + YD/T 1591-2009 compliant), and AUTOMODE (auto-switching between divider-mode and DCP) |
| Flexible Power Management | Hardware-strappable or register-configurable per-port/ganged power switching with polarity selection - enables optimized thermal and layout design |
| Configuration Options | OTP ROM, serial EEPROM, or I²C/SMBus slave interface for VID/PID, port removability, manufacturer/product strings, and UUID provisioning |
| Single-Clock Architecture | 24-MHz crystal or oscillator input - eliminates need for multiple clock sources and simplifies board-level timing design |
Applications
| Computer Docking Stations | USB-C Monitors with Hub Functionality |
|---|---|
|
Use Scenario: A compact USB-C docking station provides video output, Ethernet, and multiple USB peripherals from a single laptop port. IC Role / Device Role / Timing Role: TUSB8020BPHP acts as the embedded USB 3.0 hub managing concurrent SuperSpeed storage, high-speed webcam, and full-speed HID traffic while maintaining strict USB protocol timing. Use Value: MTT architecture prevents bandwidth starvation among connected peripherals; integrated battery charging enables fast-charging of smartphones/tablets via downstream ports. |
Use Scenario: A 4K monitor integrates USB 3.0 hub functionality to extend desktop connectivity without requiring separate dongles. IC Role / Device Role / Timing Role: TUSB8020BPHP serves as the USB protocol bridge between upstream DisplayPort Alt Mode host and downstream USB peripherals, handling link training, enumeration, and power delivery coordination. Use Value: Per-port power switching allows selective disabling of unused ports to reduce system standby power; SMBus configurability enables OEM-specific VID/PID and product identification. |
| Set-Top Box Peripheral Expansion | Industrial Embedded USB Host Interface |
|
Use Scenario: A cable/satellite STB adds USB 3.0 storage support for DVR recording and media playback alongside legacy USB 2.0 peripherals. IC Role / Device Role / Timing Role: TUSB8020BPHP functions as a dual-role hub - presenting itself as a compound device with both USB 3.0 and USB 2.0 interfaces to ensure OS compatibility across Windows, Android TV, and Linux-based firmware. Use Value: Automatic fallback to USB 2.0 mode when upstream host lacks SuperSpeed capability ensures plug-and-play interoperability without driver updates. |
Use Scenario: An industrial HMI panel requires reliable USB peripheral attachment (barcode scanner, flash drive, keyboard) in temperature-varying environments. IC Role / Device Role / Timing Role: TUSB8020BPHP operates as a robust, register-programmable hub with configurable overcurrent protection and reset recovery - critical for unattended operation in factory automation. Use Value: Ganged power mode simplifies external power switch design; OTP configuration ensures consistent firmware-agnostic device identity across production batches. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 3.0 hub applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| USB2514B-AEZG | USB 2.0-only (480 Mbps max); no SuperSpeed support; 4-port; integrated USB 2.0 PHY | Lower cost, lower power, but no 5-Gbps capability - suitable only where USB 3.0 bandwidth is unnecessary | Select when legacy USB 2.0 expansion suffices and BOM cost is prioritized over future-proofing |
| TUSB8041IRGCR | Four-port USB 3.0 hub; identical MTT architecture, same OTP/I²C configurability, but larger 64-pin QFN package | Higher port count and identical feature set - ideal for designs scaling beyond two downstream ports | Choose for direct functional upgrade path when additional downstream connectivity is required |
Compared with USB2514B-AEZG, TUSB8020BPHP delivers 10× higher bandwidth and native USB BC 1.2 charging, while TUSB8041IRGCR extends the same architecture to four ports - making TUSB8020BPHP the optimal balance of compactness, SuperSpeed performance, and embedded charging intelligence for space-constrained USB 3.0 endpoints.
Availability
TUSB8020BPHP is available at Aetrix Electronics and suitable for computer docking stations, USB-C monitors, set-top boxes, and industrial HMIs requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.
Supply support for TUSB8020BPHP 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 decades of leadership in USB interface ICs and industrial-grade signal chain components.
The TUSB8020BPHP belongs to TI's USB 3.0 hub product line, engineered for seamless integration into compact, power-efficient consumer and industrial systems requiring certified SuperSpeed connectivity, intelligent power management, and robust battery charging support.
FAQ
What USB specifications does the TUSB8020BPHP comply with?
The TUSB8020BPHP complies with USB 3.0 (SuperSpeed), USB 2.0 (high/full/low-speed), USB Battery Charging Specification Revision 1.2, and Chinese Telecommunications Industry Standard YD/T 1591-2009. It is certified by USB-IF with TID#330000057. All protocol layers - including link training, packet arbitration, and transaction translation - meet specification requirements for interoperability with standard USB hosts and devices.
Does the TUSB8020BPHP support both per-port and ganged power switching?
Yes, the TUSB8020BPHP supports both configurations. Ganged or individual power control is selected via the GANGED pin or REG_5h(ganged) register. When ganged, power is switched on/off for both downstream ports simultaneously; when individual, PWRCTL1/BATEN1 and PWRCTL2/BATEN2 independently control each port. Overcurrent detection uses OVERCUR1z/OVERCUR2z pins, with ganged mode reporting events at the hub level.
How is battery charging configured on the TUSB8020BPHP?
Battery charging mode for each port is determined at reset by the state of PWRCTL1/BATEN1 and PWRCTL2/BATEN2 pins, VBUS presence, and the autoModeEnz register bit. AUTOMODE is enabled by default and automatically selects between divider-mode (for legacy chargers) and DCP mode (YD/T 1591-2009 compliant). CDP mode activates only when VBUS is present and AUTOMODE is disabled - all modes are fully supported in the TUSB8020BPHP.
Can the TUSB8020BPHP be programmed with custom VID/PID and strings?
Yes, the TUSB8020BPHP supports customization via OTP ROM, I²C EEPROM, or SMBus slave interface. VID/PID, port removability flags, and manufacturer/product strings are programmable - though serial number and string content require EEPROM or SMBus (not OTP). Configuration is performed using vendor-defined USB requests or external programming tools, and persists across power cycles.
What clock source options does the TUSB8020BPHP accept?
The TUSB8020BPHP accepts either a 24-MHz fundamental-mode crystal (12–24 pF load, ≤50 Ω ESR, with 1-MΩ feedback resistor between XI and XO) or a 24-MHz external oscillator applied to the XI pin (XO left floating). The internal PLL generates all required clocks; no additional clock synthesis circuitry is needed. Crystal layout must follow TI's guidelines to minimize jitter and ensure reliable SuperSpeed link initialization.
TUSB8020BPHP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-PowerTQFP
- Programmable:
- Not Verified
- Protocol:
- USB
- Function:
- Hub Controller
- Interface:
- USB, GPIO, I2C, SMBus
- Standards:
- USB 3.0
- Voltage - Supply:
- 1.1V, 3.3V
- Current - Supply:
- -
- Operating Temperature:
- 0°C ~ 70°C
- Supplier Device Package:
- 48-HTQFP (7x7)
- Grade:
- -
- Qualification:
- -
TUSB8020BPHP FAQ
1.How can I place an order for TUSB8020BPHP through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB8020BPHP 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 TUSB8020BPHP reliable?
The price and inventory of TUSB8020BPHP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB8020BPHP is usually 5 days.
3.What payment methods are accepted for TUSB8020BPHP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB8020BPHP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB8020BPHP?
TUSB8020BPHP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB8020BPHP 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 TUSB8020BPHP?
For technical support, including TUSB8020BPHP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB8020BPHP requirements.
6.How does Aetrix verify that TUSB8020BPHP is sourced from the original manufacturer or authorized distributors?
All TUSB8020BPHP 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 TUSB8020BPHP meets industry standards.
7.What is the process for return or replacement of TUSB8020BPHP?
All TUSB8020BPHP units undergo pre-shipment inspection (PSI). If there is an issue with TUSB8020BPHP, 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 TUSB8020BPHP part is unused and in its original packaging.
Return procedure for TUSB8020BPHP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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