TXB0101DRLTG4 Texas Instruments Integrated Circuit (Other) In Stock
The TXB0101DRLTG4 is a Texas Instruments 1-bit bidirectional voltage-level translator in a 6-pin SOT-23 package with 14.2 ns maximum propagation delay and open-drain output. It automatically senses signal direction and translates logic levels between different supply voltage domains without direction control pins. Available worldwide in stock for mixed-voltage interface designs in portable and embedded systems.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 6
- Lifecycle
- OBSOLETE
- Datasheet
- TXB0101DRLTG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 1-bit auto-direction-sensing bidirectional voltage translation requiring no direction-control signal
- 14.2 ns maximum propagation delay for high-speed logic level shifting between mixed-voltage domains
- Open-drain output architecture compatible with I2C, SMBus, and other open-drain bus standards
- 6-pin SOT-23 package with RoHS-compliant (e4) finish for compact mixed-voltage PCB designs
Applications
The TXB0101DRLTG4 is used to interface logic signals between different supply voltage domains such as 1.8 V and 3.3 V, or 3.3 V and 5 V, in microcontroller, FPGA, and sensor designs. Its automatic direction sensing eliminates the need for a dedicated output-enable control line, simplifying board design in space-constrained portable devices, IoT modules, and battery-powered systems. Common applications include I2C bus level shifting, GPIO voltage conversion, and sensor interface adapters.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Delay-Max | 14.2ns |
| Input Characteristics | STANDARD |
| Interface IC Type | VOLTAGE LEVEL TRANSLATOR |
| JESD-30 Code | R-PDSO-F6 |
| JESD-609 Code | e4 |
| Number of Bits | 1 |
| Number of Functions | 1 |
| Output Characteristics | OPEN-DRAIN |
| Output Polarity | TRUE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | FL6,.047,20 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, VERY THIN PROFILE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max | 0.005mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 1.2V |
| Supply Voltage-Nom | 1.5V |
| Supply Voltage1-Max | 5.5V |
| Supply Voltage1-Min | 1.65V |
| Supply Voltage1-Nom | 2V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | FLAT |
| Terminal Pitch | 0.5mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TXB0101DRLTG4:
Frequently Asked Questions
What is the propagation delay of the TXB0101DRLTG4, and does it suit high-speed interface designs?
The TXB0101DRLTG4 has a maximum propagation delay of 14.2 ns, which is suitable for moderate-speed digital signals up to several tens of MHz. For I2C at 400 kHz standard or 1 MHz fast-mode plus, this delay is negligible; however, for signals above 50 MHz, lower-delay alternatives may be required to maintain setup and hold timing margins.
How does the TXB0101DRLTG4 handle bidirectional translation without a direction-control pin?
The TXB0101DRLTG4 uses an auto-direction-sensing circuit that monitors the input signal state and automatically drives the output accordingly, eliminating the need for an OE or DIR control pin. This makes it ideal for 1-bit interfaces where signal direction alternates dynamically, reducing GPIO pin usage on the host MCU and simplifying firmware at the cost of a 14.2 ns maximum detection delay per transition.
Which voltage domain combinations can the TXB0101DRLTG4 bridge in a mixed-supply PCB design?
The TXB0101DRLTG4 supports voltage translation between supply rails ranging from 1.65 V to 5.5 V on either port, covering common combinations such as 1.8 V to 3.3 V, 2.5 V to 3.3 V, and 3.3 V to 5 V. This flexibility allows a single part to handle multiple interface scenarios in mixed-voltage systems connecting low-power MCUs to 5 V legacy peripherals or 1.8 V DDR-class sensors.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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