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Texas Instruments TUSB8020BIPHP
- Part No.:
- TUSB8020BIPHP
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 48-PowerTQFP
- Datasheet:
-
TUSB8020BIPHP.pdf
- Description:
- IC USB 2.0 HUB 2 PORT 48HTQFP
- Quantity:
- Payment:
- Shipping:
Inventory:1,427
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Product details
Overview
TUSB8020BIPHP from Texas Instruments is a two-port USB 2.0 hub IC with Multi-Transaction Translator (MTT) architecture, 48-pin HTQFP (PHP) package, –40°C to 85°C industrial temperature range, and native support for USB Battery Charging (CDP/DCP/AutoMode) per downstream port. It enables high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) connectivity on both downstream ports when upstream is connected to a high-speed host-used in docking stations and embedded USB expansion modules.
For engineers reviewing the TUSB8020BIPHP datasheet, TUSB8020BIPHP pinout, TUSB8020BIPHP application, or TUSB8020BIPHP equivalent, key selection criteria include per-port/ganged power switching control, 24 MHz clock input compatibility, OTP/EEPROM/I²C configuration interface, battery charging mode configurability via PWRCTL/BATEN pins, and industrial-grade thermal performance (RθJA = 31.8°C/W).
Technical Context
The TUSB8020BIPHP implements a dual-transaction-translator MTT hub architecture, enabling concurrent high-bandwidth transfers across downstream ports without bottlenecking. It supports dynamic USB speed negotiation: downstream ports operate at high-speed only when upstream detects HS capability (via HS_UP pin), otherwise defaulting to FS/LS.
Power management is configurable via hardware strapping (GANGED, FULLPWRMGMTz, PWRCTL_POL) or register control (REG_5h), supporting either individual port power enable/disable with independent overcurrent reporting (OVERCUR1z/OVERCUR2z) or ganged operation where all ports share power state and overcurrent response.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed Support | Upstream: HS/FS/LS; Downstream: HS/FS/LS (HS enabled only if upstream is HS-capable) |
| Supply Voltages | VDD = 0.99–1.26 V (1.1 V nominal); VDD33 = 3.0–3.6 V (3.3 V nominal) |
| Operating Temperature | –40°C to +85°C - qualified for industrial environments without derating |
| Package | 48-pin HTQFP (PHP), 9 mm × 9 mm, exposed thermal pad - supports manual reflow and automated assembly |
| Configuration Interface | I²C EEPROM (7-bit address 0x50), SMBus target (address 0x88–0x8F), or OTP ROM - enables VID/PID, port removability, battery charging mode, and UUID provisioning |
| Battery Charging Modes | CDP (USB BC 1.2), DCP (YD/T 1591-2009 compliant), AutoMode (divider-mode + DCP auto-switching) - selectable per port via BATEN pins or REG_6h |
| Power Management | Per-port or ganged power switching with active-high/low polarity control (PWRCTL_POL) - enables precise power sequencing and overcurrent isolation in multi-peripheral systems |
Pinout & Package
48-pin HTQFP (PHP) package with 0.5 mm pitch, 9 mm × 9 mm body, and exposed thermal pad for enhanced thermal dissipation in compact industrial layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GRSTz | Global reset input | Active-low synchronous reset; must be held low ≥3 ms after VDD/VDD33 stabilize - required for deterministic register initialization |
| USB_DP_UP / USB_DM_UP | Upstream differential pair | HS/FS/LS bidirectional transceiver interface to host controller - requires 90 Ω differential impedance routing |
| USB_DP_DN1 / USB_DM_DN1 USB_DP_DN2 / USB_DM_DN2 |
Downstream differential pairs | Two independent HS/FS/LS transceivers - each supports separate battery charging handshaking and overcurrent monitoring |
| PWRCTL1/BATEN1 PWRCTL2/BATEN2 |
Port power/battery enable I/O | Configures per-port power switch control and battery charging mode (CDP/DCP/AutoMode) - sampled at GRSTz deassertion |
| OVERCUR1z / OVERCUR2z | Overcurrent detection inputs | Active-low open-drain signals from external power switches - used for per-port or ganged overcurrent shutdown depending on GANGED pin state |
| SCL/SMBCLK / SDA/SMBDAT | I²C/SMBus interface | Configurable as EEPROM loader (I²C) or host-target bus (SMBus) - enables field-updatable VID/PID, strings, and PHY settings without firmware change |
| GANGED / FULLPWRMGMTz | Power management strapping | Hardware-selectable ganged vs. individual port power control and power switching enable/disable - eliminates need for register writes during boot |
| XI / XO | Crystal oscillator interface | 24 MHz fundamental-mode crystal connection (or external oscillator input on XI) - XO left floating when using external clock |
Key Features
| Feature | Design Value |
|---|---|
| Multi-Transaction Translator (MTT) | Two independent transaction translators enable simultaneous high-bandwidth transfers on both downstream ports - avoids single-TT bottleneck in legacy hubs |
| Per-Port Battery Charging Control | Independent CDP/DCP/AutoMode selection per downstream port via hardware straps or registers - supports mixed-device charging scenarios (e.g., smartphone + tablet) |
| Flexible Configuration Storage | OTP ROM, I²C EEPROM, or SMBus target interface - allows factory-programmed VID/PID and runtime updates of port removability, strings, and charging modes |
| Ganged or Individual Power Switching | Hardware-strapped selection (GANGED pin) between per-port overcurrent isolation and shared shutdown - simplifies BOM and layout for cost-sensitive or safety-critical applications |
| Industrial Temperature Range | –40°C to +85°C operation with validated thermal resistance (RθJA = 31.8°C/W) - suitable for unventilated enclosures and extended-life embedded deployments |
Applications
| USB Docking Station | Industrial Monitor Hub |
|---|---|
|
Use Scenario: Adds two downstream USB 2.0 ports to a laptop or thin client via single upstream Type-A or Type-C connection, with integrated power delivery coordination. IC Role / Device Role / Timing Role: USB 2.0 hub controller managing packet routing, speed negotiation, and per-port power/battery charging handshaking. Use Value: Eliminates need for external power switches and discrete BC controllers - reduces BOM count by ≥3 components while maintaining CDP/DCP compliance. |
Use Scenario: Enables USB peripheral connectivity (keyboard, barcode scanner, flash drive) on panel-mounted industrial displays operating in factory-floor environments. IC Role / Device Role / Timing Role: Robust USB repeater/hub with industrial temp rating and ganged power control for simplified overcurrent protection. Use Value: Withstands ambient temperatures up to 85°C and supports long-term reliability via OTP-configured VID/PID - avoids EEPROM wear-out in 24/7 operation. |
| Set-Top Box Expansion | Embedded USB Host Adapter |
|
Use Scenario: Provides additional USB 2.0 host ports on consumer STBs for external storage, HID devices, or firmware update dongles. IC Role / Device Role / Timing Role: High-integration hub with built-in 24 MHz oscillator support and minimal external components (only crystal + decoupling). Use Value: Reduces PCB area by 35% vs. discrete hub + charger IC solutions - leverages internal 4 async endpoint buffers per TT to sustain concurrent device enumeration. |
Use Scenario: Adds USB 2.0 host capability to microcontroller-based edge devices (e.g., smart sensors, gateways) lacking native USB OTG. IC Role / Device Role / Timing Role: Standalone USB host-side hub with programmable VID/PID and I²C-configurable port attributes for OEM branding. Use Value: Enables unique USB device identity per unit via 128-bit UUID and serial number programming - supports secure firmware update and device traceability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 2.0 hub applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| USB2514B-AEZG | 4-port MTT hub; requires external 12 MHz clock; no native DCP/YD/T 1591-2009 support; supports USB suspend current <100 µA | Higher port count but larger 48-QFN package (7×7 mm); lacks AutoMode and Chinese telecom standard compliance | Select when >2 downstream ports are needed and ultra-low suspend current is critical; not drop-in due to pinout and charging feature gap |
| TUSB2036VFR | 3-port STT hub; 3.3 V only; no battery charging support; no OTP/EEPROM configuration; fixed VID/PID | Lower cost for basic expansion; limited to FS-only downstream; no industrial temp grade (0°C to 70°C only) | Choose for non-charging, cost-sensitive FS-only applications where temperature range and configurability are not required |
Compared with TUSB8020BIPHP, USB2514B-AEZG offers more ports but lacks native Chinese telecom charging compliance and requires different clocking, while TUSB2036VFR provides lower integration and no industrial temperature support - making TUSB8020BIPHP the only option combining MTT performance, YD/T 1591-2009 DCP, and –40°C to 85°C operation in a 48-HTQFP.
Availability
TUSB8020BIPHP is available at Aetrix Electronics and suitable for USB docking stations, industrial monitors, set-top boxes, and embedded host adapters requiring stable component supply, long-lifecycle support, and industrial temperature qualification.
Supply support for TUSB8020BIPHP 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 decades of leadership in USB interface solutions and industrial-grade IC design.
The TUSB8020BIPHP belongs to TI's USB 2.0 hub product line, engineered for robust, standards-compliant USB expansion in space-constrained, thermally demanding industrial and consumer systems - emphasizing configurability, battery charging interoperability, and seamless OS integration.
FAQ
What USB speeds does the TUSB8020BIPHP support on its downstream ports?
The TUSB8020BIPHP supports high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) on both downstream ports. High-speed operation is dynamically enabled only when the upstream port detects a high-speed capable host - verified via the HS_UP pin status at reset. If upstream is FS/LS-only, downstream ports automatically disable HS and operate at FS/LS.
Does the TUSB8020BIPHP support USB Battery Charging Specification v1.2 (BC 1.2)?
Yes, the TUSB8020BIPHP supports USB BC 1.2 Charging Downstream Port (CDP) mode when the upstream port is connected. It also supports Dedicated Charging Port (DCP) mode per port when upstream is unconnected, including full compliance with Chinese Telecommunications Industry Standard YD/T 1591-2009 - configurable via BATEN pins or REG_6h.
Can the TUSB8020BIPHP be configured without external memory?
Yes, the TUSB8020BIPHP supports one-time programmable (OTP) ROM for permanent configuration of VID, PID, port removability, and battery charging modes - eliminating need for external EEPROM or I²C bus. Strapping pins (SMBUSz, GANGED, FULLPWRMGMTz) further enable hardware-based configuration without any external memory or software intervention.
What is the function of the PWRCTL_POL pin on the TUSB8020BIPHP?
The PWRCTL_POL pin on the TUSB8020BIPHP sets the active polarity of the PWRCTL1/BATEN1 and PWRCTL2/BATEN2 signals at reset: logic low configures active-high control (PWRCTL = HIGH enables power), while logic high configures active-low control (PWRCTL = LOW enables power). This eliminates need for external inverters in systems with mixed power switch driver types.
Is the TUSB8020BIPHP compatible with a 24 MHz crystal or oscillator?
Yes, the TUSB8020BIPHP accepts a 24 MHz fundamental-mode crystal connected between XI and XO pins, or a 24 MHz CMOS oscillator driving the XI pin directly (XO left unconnected). The internal oscillator circuit is optimized for this frequency - no external PLL or frequency translation is required for full USB 2.0 timing compliance.
TUSB8020BIPHP 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 2.0
- Voltage - Supply:
- 1.1V, 3.3V
- Current - Supply:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 48-HTQFP (7x7)
- Grade:
- -
- Qualification:
- -
TUSB8020BIPHP FAQ
1.How can I place an order for TUSB8020BIPHP through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB8020BIPHP 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 TUSB8020BIPHP reliable?
The price and inventory of TUSB8020BIPHP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB8020BIPHP is usually 5 days.
3.What payment methods are accepted for TUSB8020BIPHP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB8020BIPHP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB8020BIPHP?
TUSB8020BIPHP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB8020BIPHP 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 TUSB8020BIPHP?
For technical support, including TUSB8020BIPHP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB8020BIPHP requirements.
6.How does Aetrix verify that TUSB8020BIPHP is sourced from the original manufacturer or authorized distributors?
All TUSB8020BIPHP 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 TUSB8020BIPHP meets industry standards.
7.What is the process for return or replacement of TUSB8020BIPHP?
All TUSB8020BIPHP units undergo pre-shipment inspection (PSI). If there is an issue with TUSB8020BIPHP, 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 TUSB8020BIPHP part is unused and in its original packaging.
Return procedure for TUSB8020BIPHP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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