My Inquiry
My Account
Texas Instruments TXU0101QDCKRQ1
- Part No.:
- TXU0101QDCKRQ1
- Manufacturer:
- Texas Instruments
- Category:
- Translators, Level Shifters
- Package:
- Datasheet:
-
TXU0101QDCKRQ1.pdf
- Description:
- AUTOMOTIVE SINGLE CHANNEL FIXED-
- Quantity:
- Payment:
- Shipping:
Inventory:2,635
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TXU0101QDCKRQ1 from Texas Instruments is an automotive-grade, single-bit fixed-direction voltage-level translator with Schmitt-trigger inputs and 3-state outputs. It operates across dual supplies (VCCA/VCCB = 1.1 V to 5.5 V), supports up to 200 Mbps (3.3 V → 5.0 V), delivers ±12 mA drive strength at 5 V, features VCC isolation and Ioff-float, and is qualified for –40°C to +125°C operation in automotive systems such as body control modules and infotainment interfaces.
For engineers reviewing the TXU0101QDCKRQ1 datasheet, TXU0101QDCKRQ1 pinout, TXU0101QDCKRQ1 application, or TXU0101QDCKRQ1 equivalent, this page provides verified electrical specifications, SC70-6 package layout, Schmitt-trigger noise immunity details, VCCA/VCCB rail configuration guidance, and validated automotive-level translation alternatives - all grounded in TI's SCES947 production data sheet.
Technical Context
The TXU0101QDCKRQ1 implements a noninverting, unidirectional A→B level-shifting architecture with independent VCCA and VCCB rails. Its Schmitt-trigger inputs provide hysteresis (ΔVT = 0.2–1.18 V) to reject slow or noisy signals, while integrated static pull-down resistors prevent floating inputs. The OE control logic accepts reference from either supply rail, enabling flexible system-level enable sequencing.
VCC isolation ensures high-impedance outputs when either VCCA or VCCB falls below 100 mV, and the Ioff-float feature guarantees sub-2.5 µA partial-power-down current across temperature. This enables safe hot-insertion and power-gating in mixed-voltage automotive domains without bus contention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Range (VCCA/VCCB) | 1.1 V to 5.5 V - Enables interoperability between legacy 5 V microcontrollers and modern 1.2 V/1.8 V MCUs or sensors. |
| Max Data Rate | 200 Mbps (3.3 V → 5.0 V) - Supports high-speed UART, SPI, and JTAG level shifting without timing bottlenecks. |
| Input Hysteresis (ΔVT) | 0.2 V to 1.18 V - Rejects noise on slow-rising mechanical switch or sensor inputs without external RC filtering. |
| Output Drive Strength | ±12 mA at 5 V - Directly drives LEDs, buzzers, or logic inputs without external buffers in cost-sensitive nodes. |
| Quiescent Current (ICC) | 2.5 µA max at 25°C - Minimizes standby power in always-on automotive modules like door latch controllers. |
| Operating Temperature | –40°C to +125°C - Meets AEC-Q100 Grade 1 requirements for under-hood and cabin electronics. |
| ESD Protection | ±2500 V HBM, ±1500 V CDM - Ensures robustness during assembly and field operation in harsh vehicle environments. |
Pinout & Package
TXU0101QDCKRQ1 is packaged in a 6-pin SC70 (DCK) package measuring 2.00 mm × 1.25 mm, optimized for space-constrained automotive PCBs. The package supports reflow soldering per JEDEC J-STD-020 and is RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCCA | A-port supply rail | References input A and OE logic thresholds; must be stable within 1.1–5.5 V for valid input sampling. |
| GND | Ground reference | Common return path for both supply rails; requires low-inductance connection to minimize switching noise. |
| A | Data input (A-port) | Noninverting input referenced to VCCA; accepts 0–VCCA logic levels with Schmitt-trigger hysteresis. |
| BY | Data output (B-port) | Noninverting output referenced to VCCB; transitions between 0 and VCCB with 3-state capability. |
| OE | Output enable control | Active-high; referenced to VCCA or VCCB; pulls low to force BY into high-impedance state for bus isolation. |
| VCCB | B-port supply rail | References output BY; independent of VCCA, enabling true bidirectional voltage domain bridging. |
Key Features
| Feature | Design Value |
|---|---|
| Fully configurable dual-rail operation | Enables A→B translation between any combination of 1.1 V–5.5 V logic families without external biasing. |
| Schmitt-trigger inputs with programmable hysteresis | Eliminates need for external debouncing circuitry on mechanical switches or noisy sensor lines. |
| VCC isolation and Ioff-float | Prevents backfeeding and bus contention during power sequencing or partial shutdown in multi-rail ECUs. |
| OE referenced to either VCCA or VCCB | Allows direct control from either side's logic domain-critical for asymmetric power-up sequences in ADAS modules. |
| Automotive qualification (AEC-Q100 Grade 1) | Validated for lifetime reliability in engine bay, HVAC, and lighting control units per automotive stress standards. |
Applications
| Body Control Module (BCM) | Infotainment Interface |
|---|---|
|
Use Scenario: Level-shifting between 3.3 V CAN transceiver status pins and 5 V dashboard display MCU GPIOs. IC Role / Device Role / Timing Role: Fixed-direction A→B translator isolating 3.3 V logic domain from 5 V display interface while maintaining signal integrity. Use Value: Eliminates risk of overvoltage damage to 3.3 V transceiver outputs and avoids software-based polling delays via hardware-level translation. |
Use Scenario: Interfacing 1.8 V touch controller I²C lines to 3.3 V application processor with noise immunity. IC Role / Device Role / Timing Role: Schmitt-trigger input translator ensuring clean edge detection on slow-rising capacitive touch signals. Use Value: Prevents false touch interrupts caused by EMI or crosstalk without adding external RC filters or firmware debounce cycles. |
| Door Module Sensor Hub | LED Lighting Driver Control |
|
Use Scenario: Debouncing mechanical door latch switch inputs before feeding to 5 V microcontroller. IC Role / Device Role / Timing Role: Input conditioner with integrated pull-down and hysteresis translating 12 V switch signals (via resistor divider) to 5 V logic. Use Value: Reduces BOM count by replacing discrete RC networks and Schmitt buffers, lowering system cost and board area. |
Use Scenario: Driving 5 V LED indicator strings from 1.2 V automotive SoC GPIOs. IC Role / Device Role / Timing Role: High-drive-strength level shifter delivering 12 mA sink/source to directly activate LEDs without transistor stages. Use Value: Simplifies lighting control design, improves response time vs. software PWM, and reduces thermal load on SoC. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage-level translation applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TXB0101RGTR | Auto-bidirectional (no OE pin); higher ICC (10 µA typ); no Schmitt inputs; same SC70-6 package. | Best for simple push-pull I²C/SPI where direction is inferred; unsuitable for noisy or slow-edge signals requiring hysteresis. | Select TXB0101RGTR only if bidirectionality is required and input noise immunity is not critical. |
| SN74LVC1T45DBVR | Direction-controlled (DIR pin); no Schmitt inputs; 1.65–5.5 V range; lower drive (±8 mA); same pinout. | Requires separate DIR control line; lacks noise rejection for mechanical switch inputs; limited to ≥1.65 V VCC. | Choose SN74LVC1T45DBVR when direction flexibility is needed and input signals are clean and fast-rising. |
Compared with TXB0101RGTR and SN74LVC1T45DBVR, TXU0101QDCKRQ1 uniquely combines Schmitt-trigger noise immunity, OE-controlled 3-state outputs, and full 1.1 V compatibility - making it the only AEC-Q100-qualified option for automotive debouncing, isolated bus control, and ultra-low-voltage sensor interfacing.
Availability
TXU0101QDCKRQ1 is available at Aetrix Electronics and suitable for automotive body electronics, infotainment interfaces, and LED lighting control systems requiring stable component supply, long-term lifecycle support, and AEC-Q100 compliance.
Supply support for TXU0101QDCKRQ1 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 automotive ICs, with decades of experience in high-reliability automotive electronics design and manufacturing.
The TXU0101-Q1 belongs to TI's automotive-qualified level-shifter product line, engineered specifically for robust voltage-domain bridging in safety-critical and thermally demanding vehicle subsystems.
FAQ
What is the maximum supported data rate for TXU0101QDCKRQ1 in a 3.3 V to 5.0 V translation scenario?
The TXU0101QDCKRQ1 supports up to 200 Mbps when translating from 3.3 V to 5.0 V, as specified in the official TI SCES947 datasheet. This performance is achievable under recommended operating conditions (–40°C to 125°C) with proper PCB layout, controlled impedance traces, and minimal capacitive loading. Real-world throughput may vary based on signal integrity and termination.
Does TXU0101QDCKRQ1 support bidirectional level shifting?
No, TXU0101QDCKRQ1 is a fixed-direction (unidirectional) translator: data flows only from A port to B port. Direction cannot be reversed. For bidirectional applications, TI recommends alternatives like TXB0101RGTR-but note that TXB0101RGTR lacks Schmitt-trigger inputs and AEC-Q100 qualification, unlike TXU0101QDCKRQ1.
Can the OE pin of TXU0101QDCKRQ1 be driven by a different voltage rail than VCCA or VCCB?
Yes-the OE pin of TXU0101QDCKRQ1 is designed to accept logic-level control from either VCCA or VCCB, as confirmed in Section 5 (Pin Functions) and Section 8.3 of the SCES947 datasheet. This eliminates the need for level-shifting the enable signal itself and simplifies integration in asymmetric power architectures.
What is the purpose of the Ioff-float feature in TXU0101QDCKRQ1?
The Ioff-float feature ensures that when either VCCA or VCCB is disconnected or near 0 V, all outputs enter high-impedance state and leakage current remains ≤2.5 µA (–40°C to 125°C). This prevents back-driving powered rails and protects downstream components during power sequencing or fault conditions-critical in automotive ECU designs.
Is TXU0101QDCKRQ1 compatible with SC70-6 footprint designs intended for TXB0101RGTR?
Yes-TXU0101QDCKRQ1 uses the same SC70-6 (DCK) package as TXB0101RGTR, with identical pinout (VCCA, GND, A, BY, OE, VCCB). However, functional differences exist: TXU0101QDCKRQ1 requires OE control and offers Schmitt-trigger inputs, whereas TXB0101RGTR is auto-directional and lacks hysteresis. PCB layout is interchangeable, but firmware and schematic must reflect functional distinctions.
TXU0101QDCKRQ1 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:
- Automotive
- Qualification:
- AEC-Q100
- Features:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 6-TSSOP, SC-88, SOT-363
TXU0101QDCKRQ1 FAQ
1.How can I place an order for TXU0101QDCKRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TXU0101QDCKRQ1 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 TXU0101QDCKRQ1 reliable?
The price and inventory of TXU0101QDCKRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TXU0101QDCKRQ1 is usually 5 days.
3.What payment methods are accepted for TXU0101QDCKRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TXU0101QDCKRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TXU0101QDCKRQ1?
TXU0101QDCKRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TXU0101QDCKRQ1 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 TXU0101QDCKRQ1?
For technical support, including TXU0101QDCKRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TXU0101QDCKRQ1 requirements.
6.How does Aetrix verify that TXU0101QDCKRQ1 is sourced from the original manufacturer or authorized distributors?
All TXU0101QDCKRQ1 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 TXU0101QDCKRQ1 meets industry standards.
7.What is the process for return or replacement of TXU0101QDCKRQ1?
All TXU0101QDCKRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TXU0101QDCKRQ1, 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 TXU0101QDCKRQ1 part is unused and in its original packaging.
Return procedure for TXU0101QDCKRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TXU0101QDCKRQ1 Tags
-
74LVC1T45GW,125
Nexperia USA Inc.
-
74LVCH2T45DC,125
Nexperia USA Inc.
-
SN74LVC1T45DBVR
Texas Instruments
-
SN74LVC1T45DRLR
Texas Instruments
-
SN74LVC1T45DPKR
Texas Instruments
-
SN74LVC2T45DCTR
Texas Instruments
-
74LVC2T45GT,115
Nexperia USA Inc.
-
SN74LVC1T45YZPR
Texas Instruments
-
LSF0102DCUR
Texas Instruments
-
SN74LVC1T45DCKR
Texas Instruments
-
TXS0102DCTR
Texas Instruments
-
FXLP34P5X
onsemi
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…
