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Texas Instruments TXU0101DTQR
- Part No.:
- TXU0101DTQR
- Manufacturer:
- Texas Instruments
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
TXU0101DTQR.pdf
- Description:
- IC TRANSLATOR UNIDIR 6X2SON
- Quantity:
- Payment:
- Shipping:
Inventory:19,880
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Product details
Overview
TXU0101DTQR from Texas Instruments is a 1-bit fixed-direction dual-supply voltage-level translator with Schmitt-trigger inputs and 3-state outputs, supporting 1.1V–5.5V operation on both A and B ports, up to 200Mbps (3.3V→5.0V), 12mA drive strength, and –40°C to +125°C operation - used for UART/SPI/JTAG level shifting in mixed-voltage microcontroller interfaces.
For engineers reviewing the TXU0101DTQR datasheet, TXU0101DTQR pinout, TXU0101DTQR application, or TXU0101DTQR equivalent, this page delivers verified electrical specs, package mapping to X2SON-6, functional mode behavior under VCC disconnect, and real-world I/O isolation use cases - all grounded in TI SCES940A Rev. May 2024 production data.
Technical Context
The TXU0101DTQR implements fixed unidirectional translation (A→B only) controlled by an OE input referenced to either VCCA or VCCB, enabling flexible power-domain coordination. Its Schmitt-trigger inputs provide hysteresis (ΔVT = 0.2–1.18V depending on VCCI) to reject slow/noisy signals, while integrated static pull-down resistors prevent floating inputs.
VCC isolation (Ioff-float) ensures high-impedance outputs when either VCCA or VCCB falls below 100mV or is disconnected. The device supports partial-power-down mode via Ioff ≤ ±2.5µA over –40°C to 125°C, with propagation delays as low as 8ns (A→B, VCCA=5.0V, VCCB=5.0V, –40°C to 125°C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VCCA / VCCB Range | 1.1V to 5.5V each - enables interoperability between sub-1.2V logic and 5V peripherals without external biasing. |
| Max Data Rate | 200Mbps (3.3V→5.0V) - supports high-speed UART, SPI, and JTAG clock domains across voltage islands. |
| Drive Strength | ±12mA at 5V - sufficient to directly drive LEDs, buffers, or short PCB traces without external drivers. |
| Ioff Current | ≤ ±2.5µA (–40°C to 125°C) - prevents backfeeding during partial power-down, critical for system-level energy management. |
| Input Hysteresis | 0.2V–1.18V (VCCI-dependent) - rejects noise up to ~500mV pk-pk on slow-switching mechanical or sensor inputs. |
| Propagation Delay | 8ns min (A→B, 5V/5V, –40°C to 125°C) - meets timing closure for 100MHz+ digital interfaces with margin. |
| Operating Temp | –40°C to +125°C - qualified for automotive under-hood, industrial PLC, and outdoor embedded applications. |
Pinout & Package
TXU0101DTQR uses the DTQ package: 6-pin X2SON, 1.0mm × 0.8mm, 0.35mm pitch, bottom-side thermal pad, moisture sensitivity level 1 (MSL-1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCCA | A-port supply rail | Reference for A input threshold and internal logic; must be stable within 1.1V–5.5V during operation. |
| GND | Ground reference | Common return for both supply rails; requires low-inductance connection to minimize switching noise coupling. |
| A | Data input (A port) | Schmitt-triggered input referenced to VCCA; accepts 0–5.5V regardless of VCCA (with current limiting). |
| BY | Data output (B port) | 3-state CMOS output referenced to VCCB; driven high/low when OE is high, high-Z when OE is low. |
| OE | Output enable control | Active-high enable referenced to VCCA *or* VCCB; floating or pulled to GND forces high-Z state at power-up. |
| VCCB | B-port supply rail | Reference for BY output levels and internal level-shifting circuitry; independent of VCCA. |
Key Features
| Feature | Design Value |
|---|---|
| Schmitt-trigger inputs | Enables reliable capture of slow-rising signals (e.g., mechanical switches, RC-filtered sensors) without external hysteresis circuitry. |
| VCC isolation (Ioff-float) | Guarantees high-Z outputs when either supply is absent or <100mV - eliminates bus contention during hot-swap or brownout events. |
| OE referenced to either rail | Allows direct control from A-side or B-side logic without level-shifting the enable signal - simplifies power sequencing. |
| Integrated input pull-downs | Prevents undefined states on unused or unterminated A/B pins - eliminates need for external resistors in space-constrained designs. |
| Ultra-low quiescent current | 2.5µA max at 25°C - extends battery life in always-on IoT nodes and reduces self-heating in dense PCB layouts. |
Applications
| UART Voltage Translation | Sensor Interface Isolation |
|---|---|
Use Scenario: Interfacing a 1.8V microcontroller UART TX line to a 3.3V GPS module RX input. IC Role / Device Role / Timing Role: Unidirectional A→B level shifter with Schmitt-trigger immunity to trace-induced ringing on long UART lines. Use Value: Eliminates external resistive dividers or active buffers while maintaining 2Mbps timing integrity and ESD robustness (2500V HBM). | Use Scenario: Connecting a noisy analog ambient light sensor output (slow ramp, ~10ms rise time) to a 3.3V ADC input. IC Role / Device Role / Timing Role: Input conditioning stage that cleans slow, noisy signals before digitization. Use Value: Schmitt-trigger hysteresis (0.76V @ 1.65V) rejects >300mV noise without software debouncing or RC filtering. |
| Mechanical Switch Debounce | Industrial I/O Expansion |
Use Scenario: Reading pushbutton status in a factory HMI panel where switch bounce and EMI cause false triggers. IC Role / Device Role / Timing Role: Hardware debouncer with built-in pull-down and noise rejection feeding a 2.5V FPGA GPIO bank. Use Value: Reduces firmware interrupt load and eliminates need for 10–100ms software delays - improves real-time response. | Use Scenario: Extending 5V PLC digital outputs to drive 1.2V ASIC control lines in modular automation equipment. IC Role / Device Role / Timing Role: Fixed-direction translator enabling legacy 5V logic to safely interface with modern low-voltage SoCs. Use Value: Supports 12mA sink/source per channel - drives optocoupler LEDs or small relays directly without discrete transistors. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXB0101DTQR | Auto-direction sensing (no OE pin); higher dynamic current consumption; no Schmitt inputs. | Requires clean, fast-rising signals; unsuitable for slow/noisy inputs or manual OE control. | Select TXU0101DTQR when deterministic direction control, noise immunity, or power-down isolation is required. |
| SN74AVC1T45DBVR | Single-bit bidirectional translator with DIR pin; no Schmitt inputs; 1.2V–3.6V range only. | Limited to sub-3.6V systems; lacks VCC disconnect and fails safe during supply loss. | Choose TXU0101DTQR for 5V-tolerant I/O, industrial temperature range, or fail-safe high-Z behavior. |
Compared with TXB0101DTQR and SN74AVC1T45DBVR, the TXU0101DTQR uniquely combines Schmitt-trigger noise immunity, true VCC isolation, and full 1.1V–5.5V dual-rail flexibility - making it the only option among the three qualified for mixed-voltage automotive body electronics and ruggedized industrial control.
Availability
TXU0101DTQR is available at Aetrix Electronics and suitable for UART/SPI level shifting, sensor interface conditioning, mechanical switch debouncing, and industrial I/O expansion requiring stable component supply across automotive and industrial temperature grades.
Supply support for TXU0101DTQR 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 solutions, with decades of automotive and industrial qualification expertise.
The TXU0101DTQR belongs to TI's precision voltage translation portfolio, designed specifically for robust, low-power, mixed-voltage interfacing in safety-critical and thermally demanding environments.
FAQ
What is the maximum supported data rate for TXU0101DTQR in a 3.3V-to-5.0V translation configuration?
The TXU0101DTQR supports up to 200Mbps in 3.3V-to-5.0V translation, as specified in the official TI SCES940A datasheet. This performance is achievable under recommended operating conditions (–40°C to 85°C, proper layout, 5pF load), and reflects the device's optimized propagation delay and edge-rate handling - not a theoretical limit but a tested, production-validated value for TXU0101DTQR.
Can TXU0101DTQR operate with VCCA = 1.2V and VCCB = 5.0V simultaneously?
Yes, TXU0101DTQR is fully rated for simultaneous operation with VCCA = 1.2V and VCCB = 5.0V. Its dual-rail architecture supports any combination within 1.1V–5.5V per rail, and electrical characteristics (including VOH/VOL, tpd, and hysteresis) are validated across this full range - confirmed in Sections 5.6–5.11 of the TXU0101DTQR datasheet.
Does TXU0101DTQR require external pull-up or pull-down resistors on the A or B pins?
No, TXU0101DTQR integrates static pull-down resistors on all data I/O pins (A and BY), preventing floating states without external components. This is explicitly documented in the "Features" and "Electrical Characteristics" sections of the TXU0101DTQR datasheet, and eliminates board space and BOM cost for default-safe input termination.
How does the OE pin function when referenced to VCCB instead of VCCA on TXU0101DTQR?
The OE pin on TXU0101DTQR is internally referenced to whichever supply rail (VCCA or VCCB) is present and valid - allowing direct connection to either rail's logic-high level. When OE is pulled to VCCB, the device enables outputs using VCCB as the reference threshold, enabling seamless integration into B-side-controlled systems without level-shifting circuitry - a key differentiator confirmed in the Functional Description section of the TXU0101DTQR datasheet.
What happens to the BY output when VCCA is disconnected but VCCB remains powered on TXU0101DTQR?
When VCCA drops below 100mV or is disconnected while VCCB remains powered, TXU0101DTQR activates its VCC isolation (Ioff-float) feature: all outputs, including BY, immediately enter high-impedance state regardless of OE or input state. This behavior is guaranteed across –40°C to 125°C and is a core safety feature documented in the Absolute Maximum Ratings and Functional Modes sections of the TXU0101DTQR datasheet.
TXU0101DTQR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Translator Type:
- Voltage Level
- Channel Type:
- Unidirectional
- Number of Circuits:
- 1
- Channels per Circuit:
- 1
- Voltage - VCCA:
- 1.08 V ~ 5.5 V
- Voltage - VCCB:
- 1.08 V ~ 5.5 V
- Input Signal:
- -
- Output Signal:
- -
- Output Type:
- Tri-State, Non-Inverted
- Data Rate:
- 200Mbps
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-XFDFN
TXU0101DTQR FAQ
1.How can I place an order for TXU0101DTQR through Aetrix?
Please submit a Request for Quotation (RFQ) for TXU0101DTQR 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 TXU0101DTQR reliable?
The price and inventory of TXU0101DTQR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TXU0101DTQR is usually 5 days.
3.What payment methods are accepted for TXU0101DTQR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TXU0101DTQR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TXU0101DTQR?
TXU0101DTQR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TXU0101DTQR 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 TXU0101DTQR?
For technical support, including TXU0101DTQR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TXU0101DTQR requirements.
6.How does Aetrix verify that TXU0101DTQR is sourced from the original manufacturer or authorized distributors?
All TXU0101DTQR 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 TXU0101DTQR meets industry standards.
7.What is the process for return or replacement of TXU0101DTQR?
All TXU0101DTQR units undergo pre-shipment inspection (PSI). If there is an issue with TXU0101DTQR, 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 TXU0101DTQR part is unused and in its original packaging.
Return procedure for TXU0101DTQR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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