My Inquiry
My Account
Texas Instruments TUSB212RWBR
- Part No.:
- TUSB212RWBR
- Manufacturer:
- Texas Instruments
- Category:
- Specialized
- Package:
- 12-XFQFN
- Datasheet:
-
TUSB212RWBR.pdf
- Description:
- IC INTERFACE SPECIALIZED 12X2QFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,626
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TUSB212RWBR from Texas Instruments is a USB 2.0 High-Speed (480 Mbps) signal conditioner IC designed to restore signal integrity in lossy USB channels. It provides programmable AC boost (4 levels via EQ pin pulldown) and DC boost (3 levels: 40/60/80 mV via DC_BOOST pin), operates across 3.0–3.6 V supply, supports LS/FS/HS signaling without altering low-speed signals, and enables USB-IF HS eye mask compliance in host-side or device-side applications such as docking stations and active cables.
For engineers reviewing the TUSB212RWBR datasheet, TUSB212RWBR pinout, TUSB212RWBR application, or TUSB212RWBR equivalent, this page delivers verified technical context, exact pin functions, real-world signal conditioning performance metrics, and validated alternative options for USB 2.0 channel compensation design.
Technical Context
The TUSB212RWBR implements a patent-pending architecture that passes LS and FS signals transparently while applying adaptive equalization only to HS differential pairs (D1P/D1M and D2P/D2M). Its dual-port configuration allows flexible placement-either between host and connector (D1 facing host, D2 facing receptacle) or reversed-without breaking DP/DM trace continuity.
Signal conditioning is configured at power-up via latched pin-straps: EQ sets AC gain (0–3) using external pulldown resistors (160 Ω to 6 kΩ), and DC_BOOST selects DC offset (40/60/80 mV) via tri-level input. Configuration changes require RSTN toggling; I²C mode (address 0x2C) offers register-level control but is optional and disabled by default.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 3.0–3.6 V - Ensures compatibility with standard USB 3.3 V rail; operation outside this range risks permanent damage. |
| HS Bit Rate | 480.24 Mbps - Matches USB 2.0 High-Speed specification; maintains full data throughput during signal conditioning. |
| AC Boost Levels | 4 selectable settings (Level 0–3) - Configured via EQ pin pulldown resistor; restores high-frequency loss in pre- or post-channel cable runs up to 5 m or 2 m respectively. |
| DC Boost Settings | 40 mV / 60 mV / 80 mV - Set by DC_BOOST pin voltage level; compensates for low-frequency attenuation and improves eye height at USB receptacle. |
| HS Active Current | 22–30 mA @ 480 Mbps - Defines power budget impact during active HS traffic; enables thermal design for X2QFN-12 package (RθJA = 137.4°C/W). |
| ESD Rating | ±2000 V HBM - Protects against handling-induced electrostatic discharge on all pins, critical for manufacturing and field reliability. |
| Operating Temp | 0°C to 70°C - Specifies ambient range for TUSB212RWBR variant; industrial-grade TUSB212I extends to –40°C to 85°C. |
Pinout & Package
Package: X2QFN-12 (1.60 mm × 1.60 mm, 0.4 mm pitch, wettable flank). Thermally enhanced for compact USB layout; supports no-population fallback (DP/DM traces remain continuous even when unpopulated).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| D1P / D1M | HS differential input/output pair | Connects to upstream USB transceiver (host/hub); bidirectional; unaffected by LS/FS traffic. |
| D2P / D2M | HS differential input/output pair | Connects to downstream USB receptacle; bidirectional; maintains signal integrity up to connector edge. |
| RSTN | Active-low enable/reset | Held high for normal operation; must be held low until VCC ≥ 3.0 V or use 0.1 µF capacitor to GND for clean power-on reset. |
| EQ | AC boost configuration input | Latched at RSTN de-assertion; selects one of four AC gain levels via external pulldown resistor (160 Ω to 6 kΩ). |
| DC_BOOST / ENA_HS | DC gain select / HS mode flag | Tri-level input (L/M/H) sets DC boost (40/60/80 mV); outputs ENA_HS high when HS handshake completes successfully. |
| SCL/CD | I²C clock / connection detect | In non-I²C mode: open-drain CD output asserts high upon DP/DM pull-up detection (device attach). |
| SDA | I²C data | Bidirectional I²C bus pin (address 0x2C); reserved for TI test in pin-strap mode; requires 4.7 kΩ pull-up in I²C mode. |
| VCC | Power supply | 3.0–3.6 V input; powers internal circuitry and LDO; decoupling with 100 nF capacitor required. |
| GND | Ground reference | Common return path; must be low-inductance connection to minimize noise coupling into HS paths. |
| VREG | 1.8 V LDO output | Supplies core logic only in HS mode; requires 0.1 µF capacitor to GND for stability; inactive in LS/FS modes. |
Key Features
| Feature | Design Value |
|---|---|
| LS/FS Transparency | Zero insertion delay and no waveform distortion for Low/Full Speed USB signals - preserves enumeration and BC 1.2 charging behavior. |
| Host/Device Agnostic | D1P/M and D2P/M ports are interchangeable - supports both host-side (receptacle-facing) and device-side (transceiver-facing) placements without redesign. |
| Configurable Signal Gain | Independent AC and DC boost tuning - enables precise optimization for specific PCB trace loss, connector impedance mismatch, or cable length. |
| Ultra-Low Disconnect Power | 0.7–1.5 mA typical disconnect current - minimizes standby power draw in always-on USB ports (e.g., docks, monitors). |
| USB-IF Compliance Ready | Validated eye diagram improvement with 2 m post-channel and 5 m pre-channel loss - directly supports passing USB 2.0 HS electrical compliance testing. |
Applications
| USB Docking Station | Active USB Extension Cable |
|---|---|
|
Use Scenario: A laptop connects to a multi-port dock with HDMI, Ethernet, and USB peripherals via a single USB-C or USB-A upstream link. IC Role / Device Role / Timing Role: TUSB212RWBR sits between the dock's USB controller and its rear-panel USB-A receptacles, restoring HS signal integrity degraded by long internal PCB traces and backplane routing. Use Value: Enables reliable 480 Mbps communication over extended internal routing (>10 cm), preventing eye mask failures and enumeration drops under real-world EMI conditions. |
Use Scenario: A 5-meter USB 2.0 extension cable used in industrial machine vision setups where camera data must stream error-free to host PC. IC Role / Device Role / Timing Role: TUSB212RWBR is embedded inside the cable's active electronics module, placed near the source end to compensate for pre-channel loss before signal enters the cable. Use Value: Restores signal amplitude and jitter margin sufficient to pass USB-IF HS eye mask at far-end, enabling stable high-bandwidth video transfer beyond passive cable limits. |
| Notebook USB Port Enhancement | USB Hub with Charging Support |
|
Use Scenario: Thin-and-light notebook with tightly packed motherboard layout causes marginal HS signal integrity at its Type-A port due to trace stubs and connector parasitics. IC Role / Device Role / Timing Role: TUSB212RWBR is placed immediately adjacent to the USB-A receptacle, acting as a final-stage signal conditioner before the physical connector. Use Value: Improves near-end eye opening by >30% versus baseline, ensuring robust interoperability with diverse USB 2.0 peripherals despite space-constrained routing. |
Use Scenario: A powered USB hub supporting BC 1.2 charging and HS data for connected peripherals in automotive infotainment head units. IC Role / Device Role / Timing Role: TUSB212RWBR conditions HS data paths to each downstream port while leaving BC 1.2 D+ / D− lines untouched for charger detection. Use Value: Maintains full USB 2.0 data throughput and battery charging protocol compatibility simultaneously - no trade-off between speed and power delivery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar USB 2.0 signal conditioning applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TS3USB221ERSER | Passive 2-channel USB 2.0 switch with 6 Ω on-resistance; no signal boosting capability; supports only LS/FS, not HS conditioning. | Used for USB port multiplexing or sharing, not for loss compensation; cannot replace TUSB212RWBR in HS eye mask recovery scenarios. | Select TS3USB221ERSER only when signal routing-not signal restoration-is required; not a functional substitute for TUSB212RWBR. |
| USB2244-AEZG-03 | USB 2.0 transceiver with integrated hub controller and PHY; includes basic repeater logic but no programmable AC/DC boost or EQ tuning. | Targets embedded hub designs requiring integrated control logic; lacks fine-grained signal integrity tuning needed for marginal channel margins. | Choose USB2244-AEZG-03 for cost-sensitive hub IC integration; choose TUSB212RWBR when discrete, tunable HS signal conditioning is mandatory. |
Compared with TS3USB221ERSER and USB2244-AEZG-03, the TUSB212RWBR uniquely delivers programmable analog equalization specifically for USB 2.0 HS channels - enabling precise correction of frequency-dependent loss where passive switches or integrated hubs fall short.
Availability
TUSB212RWBR is available at Aetrix Electronics and suitable for USB docking stations, active extension cables, notebook port enhancement, and USB hub designs requiring stable component supply, consistent signal integrity performance, and long-term production availability.
Supply support for TUSB212RWBR 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 leader specializing in analog, embedded processing, and connectivity technologies, with decades of USB interface IP development and qualification.
The TUSB212RWBR belongs to TI's USB signal conditioning product line, engineered specifically to solve high-speed signal degradation in compact, thermally constrained USB 2.0 systems - targeting design-in reliability across consumer, industrial, and computing platforms.
FAQ
What is the primary function of the TUSB212RWBR in a USB 2.0 system?
The TUSB212RWBR is a dedicated USB 2.0 High-Speed signal conditioner that compensates for inter-symbol interference (ISI) caused by channel loss in PCB traces, connectors, and cables. It applies programmable AC and DC boost to restore signal integrity at the USB receptacle, enabling reliable 480 Mbps operation and helping systems pass USB-IF HS electrical compliance tests - while leaving LS/FS signals completely unaffected.
How does the TUSB212RWBR handle Low Speed and Full Speed USB traffic?
The TUSB212RWBR is explicitly designed to be agnostic to Low Speed (1.5 Mbps) and Full Speed (12 Mbps) USB signaling. Its internal architecture bypasses LS/FS differential pairs without introducing delay, attenuation, or distortion - preserving enumeration timing, BC 1.2 charger detection, and suspend/resume behavior. Only High-Speed (480 Mbps) signals undergo active equalization.
Can the TUSB212RWBR be used in both host-side and device-side USB configurations?
Yes, the TUSB212RWBR supports host-side and device-side deployment due to its D1P/M and D2P/M port interchangeability and agnostic design. In host-side applications, D1 faces the USB controller and D2 faces the receptacle; in device-side setups, D2 connects to the upstream host and D1 to the local USB transceiver - both configurations maintain full HS signal conditioning functionality without layout changes.
What are the key configuration methods for the TUSB212RWBR AC and DC boost settings?
The TUSB212RWBR supports two configuration methods: pin-strapping (default) and I²C. For pin-strapping, EQ pin pulldown resistors set AC boost (4 levels), and DC_BOOST pin voltage (L/M/H) sets DC offset (40/60/80 mV); both are latched at RSTN de-assertion. I²C mode (address 0x2C) allows runtime register writes to ACB_LVL (0x01) and DCB_LVL (0x0E), but requires SDA/SCL pull-ups and CFG_ACTIVE bit management.
Does the TUSB212RWBR require external components for basic operation?
Yes, minimal external components are required: a 0.1 µF capacitor on VREG to GND for LDO stability, 100 nF decoupling on VCC, and optionally a 0.1 µF capacitor from RSTN to GND if microcontroller reset control isn't available. For pin-strapped AC/DC boost, external resistors on EQ and DC_BOOST pins are mandatory; SDA/SCL pull-ups (4.7 kΩ) are needed only if I²C mode is enabled.
TUSB212RWBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 12-XFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Applications:
- Signal Processing
- Interface:
- USB
- Voltage - Supply:
- 3V ~ 3.6V
- Supplier Device Package:
- 12-X2QFN (1.6x1.6)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
TUSB212RWBR FAQ
1.How can I place an order for TUSB212RWBR through Aetrix?
Please submit a Request for Quotation (RFQ) for TUSB212RWBR 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 TUSB212RWBR reliable?
The price and inventory of TUSB212RWBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TUSB212RWBR is usually 5 days.
3.What payment methods are accepted for TUSB212RWBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TUSB212RWBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TUSB212RWBR?
TUSB212RWBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TUSB212RWBR 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 TUSB212RWBR?
For technical support, including TUSB212RWBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TUSB212RWBR requirements.
6.How does Aetrix verify that TUSB212RWBR is sourced from the original manufacturer or authorized distributors?
All TUSB212RWBR 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 TUSB212RWBR meets industry standards.
7.What is the process for return or replacement of TUSB212RWBR?
All TUSB212RWBR units undergo pre-shipment inspection (PSI). If there is an issue with TUSB212RWBR, 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 TUSB212RWBR part is unused and in its original packaging.
Return procedure for TUSB212RWBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TUSB212RWBR Tags
-
NVT4857UKAZ
NXP Semiconductors
-
TCA8418RTWR
Texas Instruments
-
PCA9546APWR
Texas Instruments
-
MD0100N8-G
Microchip Technology
-
PCA9548APW,118
NXP Semiconductors
-
PCA9540BDP,118
NXP Semiconductors
-
PCA9548APWR
Texas Instruments
-
PCA9546APW,118
NXP Semiconductors
-
PTN3360DBS,518
NXP Semiconductors
-
PCA9546ABS,118
NXP Semiconductors
-
PCA9518PWR
Texas Instruments
-
PCA9545APW,118
NXP Semiconductors
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
