TXB0104QRUTRQ1 - 4-Bit Auto-Direction Level Translator | TI
MPN: TXB0104QRUTRQ1 β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.2 | $1.20 |
| 10 | $1.08 | $10.80 |
| 100 | $0.85 | $85.00 |
| 500 | $0.68 | $340.00 |
| 1,000 | $0.55 | $550.00 |
Drop-in alternatives for TXB0104QRUTRQ1 β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
TXB0104RUTR
β Drop-Inβ In Stock
$0.24 / Unit
View Datasheet βTXB0104ZXUR
β‘ Same Packageπ Reference alternative (not in catalog)
TXS0104RUTR
β‘ Same Packageπ Reference alternative (not in catalog)
TXB0104QRUTRQ1 Maximum Ratings & Electrical Characteristics
| Translator Type | 4-bit bidirectional voltage-level translator |
| Direction Control | Automatic direction sensing |
| VCCA Range (A Port) | 1.2 V to 3.6 V |
| VCCB Range (B Port) | 1.65 V to 5.5 V |
| Supply Constraint | VCCA <= VCCB |
| Data Rate | Up to 100 Mbps |
| ESD Protection | +/-15 kV (IEC air-gap) |
| Automotive Qualification | AEC-Q100 Grade 1 |
| Operating Temperature | -40C to +125C |
| Package | 12-UQFN (RUT), 1.7 mm x 2.0 mm |
| Channels | 4 |
| Signal Type | Push-pull (CMOS) |
| Mounting Type | Surface Mount |
| Applications | Automotive |
| RoHS Status | [DATA_NEEDED: RoHS status] |
TXB0104QRUTRQ1 Pin Configuration
| Pin 1 | A1 β A-port data input/output 1 (1.2-3.6 V) |
| Pin 2 | VCCA β A-port supply, 1.2 V to 3.6 V |
| Pin 3 | A2 β A-port data input/output 2 |
| Pin 4 | A3 β A-port data input/output 3 |
| Pin 5 | GND β Ground reference |
| Pin 6 | A4 β A-port data input/output 4 |
| Pin 7 | B4 β B-port data input/output 4 (1.65-5.5 V) |
| Pin 8 | NC β No connect |
| Pin 9 | B3 β B-port data input/output 3 |
| Pin 10 | B2 β B-port data input/output 2 |
| Pin 11 | VCCB β B-port supply, 1.65 V to 5.5 V |
| Pin 12 | B1 β B-port data input/output 1 |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
TXB0104QRUTRQ1 is suitable for 6 applications: Automotive Body Electronics, Automotive Infotainment and Clusters, Sensor Interface Level Shifting, Mixed-Voltage MCU-to-Peripheral Translation, Industrial Control and PLC I/O, Automotive Lighting Modules.
Automotive Body Electronics
Body control modules mix 1.8 V MCU GPIO with 3.3 V and 5 V actuators, switches, and diagnostic lines. The TXB0104QRUTRQ1 fits because its AEC-Q100 Grade 1 rating (-40C to +125C) and +/-15kV IEC ESD protection withstand the harsh automotive electrical environment and harness transients. Its automatic direction sensing removes direction-control firmware from body function code. Four channels in a 1.7 mm x 2.0 mm UQFN consolidate multiple discrete transistor level-shift circuits, cutting BOM count while sustaining push-pull signal integrity up to 100 Mbps.
Recommended
Automotive Infotainment and Clusters
Cluster and infotainment modules translate between low-voltage SoC GPIO (1.8 V) and 3.3 V or 5 V display, backlight, and peripheral logic. The TXB0104QRUTRQ1 supplies four bidirectional push-pull channels at up to 100 Mbps, fast enough for high-speed control and status signaling, with automatic direction sensing that simplifies A-port/B-port hookup. AEC-Q100 Grade 1 qualification covers the -40C to +125C cabin-ambient extremes, and the compact 12-UQFN fits dense PCBAs behind displays where layout area is at a premium.
Recommended
Sensor Interface Level Shifting
Modern automotive and industrial sensors output push-pull digital signals at 1.8 V or 2.5 V while controllers and ADC front ends run at 3.3 V or 5 V. The TXB0104QRUTRQ1 bridges these domains with 1.2 V low-side support, the widest in its class among simple translators, and +/-15kV ESD robustness for wiring that leaves the module enclosure. Automatic direction sensing handles shared trigger/interrupt lines without a DIR pin. Four channels translate position, level, or status sensor outputs in one 1.7 mm x 2.0 mm UQFN package.
Recommended
Mixed-Voltage MCU-to-Peripheral Translation
Embedded designs frequently pair a 1.8 V microcontroller with 3.3 V or 5 V peripherals such as EEPROM, displays, and motor drivers. The TXB0104QRUTRQ1 translates four push-pull GPIO, SPI-adjacent, or control signals bidirectionally at up to 100 Mbps with no direction pin, no enable pin, and no external pull resistors. The VCCA <= VCCB architecture directly supports 1.2 V to 3.6 V A-side logic against a 1.65 V to 5.5 V B-side rail. The 12-UQFN (RUT) footprint occupies minimal board area versus discrete BSS138-style circuits.
Recommended
Industrial Control and PLC I/O
Industrial controllers translate 1.8 V DSP or FPGA bank I/O to 5 V field-side logic for motor drivers, relays, and diagnostics. The TXB0104QRUTRQ1 provides four push-pull bidirectional channels with 100 Mbps bandwidth, enough for fast PWM status and encoder-adjacent signaling, while its +125C rating suits control cabinets with limited airflow. Automatic direction sensing handles half-duplex lines without control GPIO overhead. Although automotive-qualified, its robust ESD and temperature specs give industrial designs extra margin at automotive-grade pricing.
Recommended
Automotive Lighting Modules
Adaptive LED and matrix lighting modules mix low-voltage MCU logic with 3.3 V or 5 V driver ICs, fault-diagnosis lines, and fan or stepper control signals. The TXB0104QRUTRQ1 translates these push-pull lines bidirectionally at up to 100 Mbps with automatic direction sensing, and its +/-15kV IEC ESD rating helps survive connector-transient exposure near the lamp assembly. AEC-Q100 Grade 1 -40C to +125C coverage addresses underhood-adjacent temperature swings, while the 1.7 mm x 2.0 mm UQFN suits compact driver boards inside lamp housings.
Recommended
Recommended Products Summary
Engineering reference data for TXB0104QRUTRQ1 β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | TXB0104RUTR | TXB0104ZXUR | TXS0104RUTR |
|---|---|---|---|---|
| Package | 12-UQFN (RUT) 1.7x2.0 mm | 12-UQFN (RUT) - same | 12-UQFN (ZXU) 1.26x1.16 mm - smaller land pattern | 12-UQFN (RUT) - same |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Automotive Qualification | AEC-Q100 Grade 1 | No (commercial/industrial) | No | [DATA_NEEDED] |
| Temperature Range | -40C to +125C | -40C to +85C | -40C to +85C | [DATA_NEEDED] |
| ESD Protection | +/-15 kV | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Data Rate | 100 Mbps | 100 Mbps | 100 Mbps | Lower (open-drain architecture) |
| Signal Type | Push-pull (CMOS) | Push-pull (CMOS) | Push-pull (CMOS) | Push-pull and open-drain (I2C-capable) |
| Primary Use Case | Automotive push-pull level shifting | Cost-optimized industrial/consumer | Ultra-compact layouts (board redesign) | Open-drain buses such as I2C |
Key Differentiators
- Automotive AEC-Q100 Grade 1 qualification with +/-15kV ESD (vs TXB0104RUTR)
- 1.2 V low-side A-port support (vs LSF0102-Q1)
- 4-bit integration vs 2-bit alternatives (vs TXS0102-Q1)
Design Notes
Never place external pull-up or pull-down resistors on TXB0104 I/O pins. The automatic direction sensing uses weak internal pull-downs on the A port and pull-ups on the B port; external resistors can falsely trigger direction reversal or cause oscillation. For open-drain buses such as I2C that require pull-ups, select the TXS0104 instead.
Observe the VCCA <= VCCB constraint at all times, including during power sequencing. TI application guidance recommends powering VCCA before or simultaneously with VCCB; a floating or absent VCCA with VCCB applied can back-drive the A port. Use 0.1 uF ceramic decoupling capacitors on both VCCA and VCCB pins, placed within 2 mm of the pins given the 1.7x2.0 mm UQFN footprint.
The 12-UQFN (RUT) 1.7 mm x 2.0 mm land pattern is defined in TI datasheet Rev. D. Follow the datasheet recommended PCB layout with via-in-pad or short thermal reliefs on the center pads for manufacturability, and follow IPC/JEDEC moisture sensitivity handling for the reel packaging. Keep high-rate (100 Mbps) traces impedance-controlled and short, matching A-side and B-side trace lengths where signal integrity matters.
Compliance Information
AEC-Q100 Grade 1 qualified per TI datasheet Rev. D. RoHS/REACH status not stated in provided data - [DATA_NEEDED].
