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Texas Instruments TUSB8020BIPHPR
- Part No.:
- TUSB8020BIPHPR
- Manufacturer:
- Texas Instruments
- Category:
- Controllers
- Package:
- 48-PowerTQFP
- Datasheet:
-
TUSB8020BIPHPR.pdf
- Description:
- IC USB 2.0 HUB 2 PORT 48HTQFP
- Quantity:
- Payment:
- Shipping:
Inventory:3,563
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Product details
Overview
TUSB8020BIPHPR from Texas Instruments is a two-port USB 2.0 hub IC with Multi-Transaction Translator (MTT) architecture, supporting high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) USB connectivity on downstream ports, integrated battery charging support (CDP/DCP/AutoMode), and 48-pin HTQFP (PHP) packaging for industrial temperature operation (–40°C to 85°C). It enables compact docking stations and embedded peripherals requiring per-port power control and USB compliance.
For engineers reviewing the TUSB8020BIPHPR datasheet, TUSB8020BIPHPR pinout, TUSB8020BIPHPR application, or TUSB8020BIPHPR equivalent, key selection criteria include MTT hub architecture, dual downstream port power switching (ganged or individual), battery charging mode configurability (YD/T 1591-2009 compliant DCP), OTP/EEPROM/I²C programmability, and 24 MHz clock input flexibility.
Technical Context
The TUSB8020BIPHPR implements a true Multi-Transaction Translator hub with two independent transaction translators and four asynchronous endpoint buffers per translator, enabling concurrent high-bandwidth transfers across downstream ports without bandwidth contention. Its USB 2.0 physical layer supports automatic speed negotiation-high-speed enabled only when upstream port detects HS capability-and includes integrated VBUS monitoring via resistor-divider input (USB_VBUS).
Power management is implemented through configurable PWRCTL1/BATEN1 and PWRCTL2/BATEN2 pins that determine per-port battery charging enable state at reset deassertion, while OVERCUR1z/OVERCUR2z inputs support either individual or ganged overcurrent reporting. Configuration is supported via OTP ROM, I²C EEPROM (address 0x50), or SMBus target interface (base address 0x88), with register-level control of battery charging modes, power switch polarity (PWRCTL_POL), and full/ganged power management enable (FULLPWRMGMTz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| USB Speed Support | Upstream: HS/FS/LS; Downstream: HS/FS/LS - HS disabled on DS ports if upstream lacks HS capability |
| Transaction Translators | 2 MTT units - Enables parallel packet handling across both downstream ports without shared bandwidth bottleneck |
| Supply Voltages | VDD = 0.99–1.26 V (1.1V rail); VDD33 = 3.0–3.6 V - Dual-rail operation with independent power domains |
| Battery Charging Modes | CDP (upstream connected), DCP (upstream unconnected, YD/T 1591-2009 compliant), AutoMode (divider/DCP auto-select) - Configurable per port via register or strap pins |
| Configuration Interface | OTP ROM, I²C EEPROM (100 kbps, 7-bit addr 0x50), or SMBus target (addr 0x88–0x8F) - Enables VID/PID, port strings, and phy customization without firmware host dependency |
| Package & Temp Range | 48-pin HTQFP (PHP), 9 mm × 9 mm - Industrial-grade packaging rated for –40°C to +85°C ambient operation |
| Reset Timing | GRSTz min pulse width = 3 ms after VDD/VDD33 stable - Ensures reliable register initialization before USB enumeration |
Pinout & Package
Package: 48-pin HTQFP (PHP), thermally enhanced with exposed thermal pad; 9 mm × 9 mm footprint; RoHS-compliant; industrial temperature range (–40°C to +85°C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GRSTz (Pin 11) | Global Reset Input | Active-low synchronous reset; forces all internal registers to default state; device nonfunctional while asserted |
| USB_DP_UP / USB_DM_UP (Pins 26/27) | Upstream Differential Pair | HS/FS/LS USB transceiver interface to host controller; requires 90 Ω differential impedance routing |
| USB_DP_DN1 / USB_DM_DN1 (Pins 41/42) | Downstream Port 1 Pair | HS/FS/LS USB transceiver for peripheral connection; supports BC 1.2 CDP handshaking when BATEN1 = 1 |
| PWRCTL1/BATEN1 (Pin 4) | Port 1 Power/Battery Control | Strap pin sampled at reset: 0 = no battery charging; 1 = enable CDP/DCP/AutoMode; also controls external power switch gate |
| OVERCUR1z (Pin 5) | Port 1 Overcurrent Sense | Active-low input tied to external power switch OC output; triggers port-specific power disable in individual mode or hub event in ganged mode |
| SCL/SMBCLK (Pin 2) | I²C/SMBus Clock | Configurable via SMBUSz pin: I²C EEPROM clock (SMBUSz=1) or SMBus host clock (SMBUSz=0); requires external pull-up |
| SDA/SMBDAT (Pin 3) | I²C/SMBus Data | Configurable data line for configuration loading; enables VID/PID, port strings, and phy settings without host driver involvement |
| USB_R1 (Pin 24) | USB Precision Reference | Connects 9.53 kΩ ±1% resistor to GND; sets internal USB PHY termination and biasing accuracy |
| USB_VBUS (Pin 9) | Upstream VBUS Monitor | Resistor-divider input (90.9kΩ + 10kΩ) for detecting upstream port presence and power status |
| XI / XO (Pins 38/39) | Crystal Oscillator Interface | Accepts 24 MHz fundamental-mode crystal; XI driven externally for oscillator bypass; XO left floating if external clock used |
Key Features
| Feature | Design Value |
|---|---|
| Multi-Transaction Translator (MTT) Hub | Two independent transaction translators with four async endpoint buffers each - eliminates bandwidth sharing between downstream ports during concurrent HS transfers |
| Per-Port Battery Charging Enable | Hardware-strappable BATEN1/BATEN2 pins set CDP/DCP/AutoMode at reset - enables charging-aware peripheral design without runtime host configuration |
| Ganged vs Individual Power Switching | Configurable via GANGED pin and FULLPWRMGMTz - supports cost-optimized single-switch designs or robust per-port fault isolation |
| Triple Configuration Interface | OTP ROM (factory-programmed), I²C EEPROM (field-updatable), or SMBus target (host-controlled) - decouples hardware design from firmware dependencies |
| AutoMode Charging Intelligence | Automatically selects DCP or Divider Mode based on attached device signature - supports legacy and modern BC 1.2 devices without manual mode selection |
| Industrial Temperature Operation | Rated for –40°C to +85°C ambient - validated for continuous operation in embedded computing, docking, and industrial USB expansion systems |
Applications
| Computer Docking Stations | USB-C Enabled Monitors |
|---|---|
|
Use Scenario: Adds two downstream USB 2.0 ports to a USB-C monitor with DisplayPort Alt Mode, enabling keyboard/mouse and storage attachment without host PC involvement. IC Role / Device Role / Timing Role: USB 2.0 hub controller managing upstream USB-C UFP connection and downstream peripheral enumeration; handles autonomous battery charging negotiation. Use Value: Eliminates need for separate USB host controller; supports simultaneous CDP charging for mobile devices while maintaining HS data throughput to peripherals. |
Use Scenario: Integrates into a 27-inch 4K monitor with USB-C upstream, providing two rear-panel USB-A 2.0 ports for peripherals and smartphone charging. IC Role / Device Role / Timing Role: Embedded hub IC performing VBUS detection, per-port power switching, and BC 1.2 DCP handshaking independent of display controller firmware. Use Value: Enables plug-and-play smartphone charging (YD/T 1591-2009 compliant) and HID device connectivity without OS-level driver updates or host-side resource allocation. |
| Embedded Set-Top Boxes | Industrial Human-Machine Interfaces |
|
Use Scenario: Adds USB host capability to a cable STB for firmware updates via USB flash drive and IR receiver dongle support. IC Role / Device Role / Timing Role: USB 2.0 hub managing low-latency HID (IR) and bulk-storage (update) traffic; uses OTP-programmed VID/PID for certified enumeration. Use Value: Guarantees consistent USB descriptor behavior across production units; supports secure firmware update path with no host-side configuration required. |
Use Scenario: Provides two isolated USB 2.0 ports in an IP65-rated HMI panel for barcode scanner and USB printer attachment in factory automation. IC Role / Device Role / Timing Role: Robust hub IC with ganged overcurrent protection and industrial temp rating; handles hot-plug events and maintains enumeration under EMI-rich plant-floor conditions. Use Value: Ensures reliable peripheral attach/detach in harsh environments; eliminates host CPU overhead for USB topology management via autonomous power control. |
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 | Single TT hub (not MTT); no native battery charging support; requires external charging IC or GPIO coordination | Lacks integrated CDP/DCP handshaking; suitable for pure data-hub applications without charging requirements | Select when cost sensitivity outweighs charging integration needs and per-port bandwidth contention is acceptable |
| TUSB8041AIPV | Four-port MTT hub; identical battery charging architecture and strap/configuration interface; larger 64-pin HTQFP package | Provides two additional downstream ports; same industrial temp rating and USB 2.0 compliance profile | Choose when system requires >2 downstream ports and board space allows larger package; shares identical register map and firmware compatibility |
Compared with USB2514B-AEZG, TUSB8020BIPHPR delivers higher concurrent throughput via MTT and eliminates external charging circuitry; versus TUSB8041AIPV, it offers identical feature depth in a smaller 48-pin footprint ideal for space-constrained docking and monitor designs.
Availability
TUSB8020BIPHPR is available at Aetrix Electronics and suitable for computer docking stations, USB-C monitors, and industrial human-machine interfaces requiring stable component supply, long-term industrial temperature support, and integrated battery charging functionality.
Supply support for TUSB8020BIPHPR 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 TUSB8020BIPHPR belongs to TI's USB 2.0 hub product line, engineered specifically for compact, self-contained USB expansion in space- and power-constrained embedded systems requiring autonomous charging and industrial reliability.
FAQ
What USB speed modes does the TUSB8020BIPHPR support on its downstream ports?
The TUSB8020BIPHPR supports high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) USB 2.0 operation on both downstream ports. High-speed operation is automatically enabled only when the upstream port detects a high-speed capable host; otherwise, downstream ports operate at full- or low-speed only. This behavior is fully compliant with USB 2.0 specification Section 11.1.2 and verified in TI's SLLSEI0E datasheet revision July 2024.
How is battery charging configured on the TUSB8020BIPHPR?
Battery charging on the TUSB8020BIPHPR is configured per port using the PWRCTL1/BATEN1 and PWRCTL2/BATEN2 strap pins sampled at GRSTz deassertion. When set high, these pins enable CDP (if upstream connected), DCP (if upstream unconnected, YD/T 1591-2009 compliant), or AutoMode (automatic DCP/divider selection). Configuration can also be modified via OTP, I²C EEPROM, or SMBus registers - all documented in Section 6.3.1 of the TUSB8020BIPHPR datasheet.
Does the TUSB8020BIPHPR require an external crystal, or can it use an oscillator?
The TUSB8020BIPHPR accepts either a 24 MHz fundamental-mode crystal connected between XI (Pin 38) and XO (Pin 39), or a 24 MHz CMOS-compatible clock signal applied directly to XI while leaving XO unconnected. The internal oscillator circuitry is fully compatible with both sources, and layout guidelines in Figure 6-1 of the datasheet specify trace length and noise isolation requirements for stable operation.
What package type and thermal characteristics does the TUSB8020BIPHPR have?
The TUSB8020BIPHPR is packaged in a 48-pin HTQFP (PHP) with 9 mm × 9 mm body and exposed thermal pad. Its thermal metrics include RθJA = 31.8°C/W and RθJB = 13°C/W, enabling operation up to +85°C ambient without forced airflow when mounted on a standard 4-layer PCB with adequate copper pour under the thermal pad - confirmed in Section 5.4 of the official TI datasheet.
Can the TUSB8020BIPHPR be programmed in-system without removing it from the PCB?
Yes, the TUSB8020BIPHPR supports in-system programming of its OTP ROM and I²C EEPROM via the USB 2.0 upstream port using vendor-defined USB requests. TI provides dedicated tools and documentation for this process, allowing field updates to VID/PID, manufacturer strings, and battery charging parameters without physical rework - detailed in Section 6.5.1 and Application Report SLVA775.
TUSB8020BIPHPR 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:
- -
TUSB8020BIPHPR FAQ
1.How can I place an order for TUSB8020BIPHPR through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB8020BIPHPR 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 TUSB8020BIPHPR reliable?
The price and inventory of TUSB8020BIPHPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB8020BIPHPR is usually 5 days.
3.What payment methods are accepted for TUSB8020BIPHPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB8020BIPHPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB8020BIPHPR?
TUSB8020BIPHPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB8020BIPHPR 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 TUSB8020BIPHPR?
For technical support, including TUSB8020BIPHPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB8020BIPHPR requirements.
6.How does Aetrix verify that TUSB8020BIPHPR is sourced from the original manufacturer or authorized distributors?
All TUSB8020BIPHPR 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 TUSB8020BIPHPR meets industry standards.
7.What is the process for return or replacement of TUSB8020BIPHPR?
All TUSB8020BIPHPR units undergo pre-shipment inspection (PSI). If there is an issue with TUSB8020BIPHPR, 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 TUSB8020BIPHPR part is unused and in its original packaging.
Return procedure for TUSB8020BIPHPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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