TXB0104_Level-Shifter 4-Bit Bidirectional Voltage-Level Translator

Texas Instruments Interface — specifications, applications, sourcing support and RFQ.

TXB0104_Level-Shifter 4-Bit Bidirectional Voltage-Level Translator

RFQ Available Sourcing Support Alternative Matching RoHS
Part Number
TXB0104_Level-Shifter
Manufacturer
Texas Instruments
Package
UQFN-12 2.00mm x 1.70mm; SOIC-14 8.65mm x 3.91mm; BGA MicroStar Junior-12 2.00mm x 2.50mm; TSSOP-14 5.00mm x 4.40mm; VQFN-14 3.50mm x 3.50mm; DSBGA-12 1.40mm x 1.90mm; NFBGA-12 2.00mm x 2.50mm; WQFN-14 3.00mm x 2.50mm; SOT-14 4.20mm x 2.00mm
Category
Signal Chain
Product Type
I2C Switch

Quick Sourcing Note

TXB0104_Level-Shifter from Texas Instruments is an Interface component described as a 4-bit bidirectional voltage-level translator. It supports an A-port supply range of 1.2 to 3.6 V and a B-port supply range of 1.65 to 5.5 V, with VCCA required to be less than or equal to VCCB. Package options include UQFN-12, SOIC-14, BGA MicroStar Junior-12, TSSOP-14, VQFN-14, DSBGA-12, NFBGA-12, WQFN-14, and SOT-14. Key parameters include OE-controlled high-impedance outputs, Ioff partial power-down isolation, 5 µA maximum low power consumption, -40 to 85 °C operation, and separate A-port and B-port ESD ratings.

Specifications

TypeDescription
Part NumberTXB0104_Level-Shifter
ManufacturerTexas Instruments
Product TypeI2C Switch
CategorySignal Chain
Package / CaseUQFN-12 2.00mm x 1.70mm; SOIC-14 8.65mm x 3.91mm; BGA MicroStar Junior-12 2.00mm x 2.50mm; TSSOP-14 5.00mm x 4.40mm; VQFN-14 3.50mm x 3.50mm; DSBGA-12 1.40mm x 1.90mm; NFBGA-12 2.00mm x 2.50mm; WQFN-14 3.00mm x 2.50mm; SOT-14 4.20mm x 2.00mm
A-port supply voltage range1.2 to 3.6 V; recommended operating conditions; VCCA must be <= VCCB
B-port supply voltage range1.65 to 5.5 V; recommended operating conditions
A-port absolute maximum supply voltage-0.5 to 4.6 V; absolute maximum ratings
B-port absolute maximum supply voltage-0.5 to 6.5 V; absolute maximum ratings
A-port input voltage absolute maximum-0.5 to 4.6 V; absolute maximum ratings
B-port input voltage absolute maximum-0.5 to 6.5 V; absolute maximum ratings
A-port high-impedance or power-off output voltage absolute maximum-0.5 to 4.6 V; voltage applied to any output in high-impedance or power-off state
B-port high-impedance or power-off output voltage absolute maximum-0.5 to 6.5 V; voltage applied to any output in high-impedance or power-off state
A-port output voltage absolute maximum in high or low state-0.5 to VCCA + 0.5 V; voltage applied to any output in high or low state
B-port output voltage absolute maximum in high or low state-0.5 to VCCB + 0.5 V; voltage applied to any output in high or low state
Input clamp current-50 mA; VI < 0
Output clamp current-50 mA; VO < 0
Continuous output current-50 to 50 mA; absolute maximum ratings
Continuous current through VCCA, VCCB, or GND-100 to 100 mA; absolute maximum ratings
Junction temperature150 °C; absolute maximum ratings
Storage temperature range-65 to 150 °C; absolute maximum ratings
Operating free-air temperature-40 to 85 °C; recommended operating conditions
A-port HBM ESD rating±2.5 kV; Human-body model per ANSI/ESDA/JEDEC JS-001
B-port HBM ESD rating±15 kV; Human-body model per ANSI/ESDA/JEDEC JS-001
A-port CDM ESD rating±1.5 kV; Charged-device model per JEDEC JESD22-C101
B-port CDM ESD rating±1.5 kV; Charged-device model per JEDEC JESD22-C101
Data input high-level thresholdVCCI x 0.65 V minimum; VCCA=1.2 to 3.6 V, VCCB=1.65 to 5.5 V; VCCI is input-port supply
OE high-level input voltageVCCA x 0.65 to 5.5 V; VCCA=1.2 to 3.6 V, VCCB=1.65 to 5.5 V
Data input low-level threshold0 to VCCI x 0.35 V; VCCA=1.2 to 5.5 V, VCCB=1.65 to 5.5 V; VCCI is input-port supply
OE low-level input voltage0 to VCCA x 0.35 V; VCCA=1.2 to 3.6 V, VCCB=1.65 to 5.5 V
Maximum low power consumption5 µA; ICC maximum stated in features
A-port output high voltage1.1 V minimum; BQA/DYY packages; IOH=-20 µA, VCCA=1.2 V, TA=25°C
A-port output high voltageVCCA - 0.4 V minimum; BQA/DYY packages; IOH=-20 µA, VCCA=1.4 to 3.6 V, TA=25°C
A-port output low voltage0.3 V maximum; BQA/DYY packages; IOL=20 µA, VCCA=1.2 V, TA=25°C
A-port output low voltage0.4 V maximum; BQA/DYY packages; IOL=20 µA, VCCA=1.4 to 3.6 V, TA=25°C
B-port output high voltageVCCB - 0.4 V minimum; BQA/DYY packages; IOH=-20 µA, VCCB=1.65 to 5.5 V, TA=25°C
B-port output low voltage0.4 V maximum; BQA/DYY packages; IOL=20 µA, VCCB=1.65 to 5.5 V, TA=25°C
OE input leakage current-1 to 1 µA typ/max at 25°C; -2 to 2 µA over -40°C to 85°C; BQA/DYY packages; VI=VCCI or GND, VCCA=1.2 to 3.6 V, VCCB=1.65 to 5.5 V
A-port off-state current-1 to 1 µA at 25°C; -2 to 2 µA over -40°C to 85°C; BQA/DYY packages; VCCA=0 V, VCCB=0 to 5.5 V, VI or VO=0 to 3.6 V
B-port off-state current-1 to 1 µA at 25°C; -2 to 2 µA over -40°C to 85°C; BQA/DYY packages; VCCA=0 to 3.6 V, VCCB=0 V, VI or VO=0 to 5.5 V
High-impedance-state output current-1 to 1 µA at 25°C; -2 to 2 µA over -40°C to 85°C; BQA/DYY packages; A or B port, OE=GND, VCCA=1.2 to 3.6 V, VCCB=1.65 to 5.5 V
Output enable behaviorOE low places all outputs in high-impedance state; OE referenced to VCCA
Power-off isolationIoff supports partial power-down mode operation; outputs disabled to prevent damaging current backflow when powered down
Datasheet Statusrequest_only

Product Overview

TXB0104_Level-Shifter is a Texas Instruments Interface device for 4-bit bidirectional voltage-level translation. The A port operates from 1.2 to 3.6 V, while the B port operates from 1.65 to 5.5 V under recommended operating conditions. The datasheet condition requires VCCA to be less than or equal to VCCB.

The device includes OE control referenced to VCCA. When OE is low, all outputs are placed in the high-impedance state. Ioff support enables partial power-down mode operation by disabling outputs to prevent damaging current backflow when powered down.

Package options cover UQFN-12, SOIC-14, BGA MicroStar Junior-12, TSSOP-14, VQFN-14, DSBGA-12, NFBGA-12, WQFN-14, and SOT-14 formats. Operating free-air temperature is -40 to 85 °C, with absolute maximum junction temperature of 150 °C and storage range of -65 to 150 °C.

Typical use is mixed-voltage digital interface translation between the A-port and B-port supply domains, including systems that need output-disable control, partial power-down isolation, low off-state current, and port-specific ESD handling.

Key Features

  • 4-bit bidirectional voltage-level translation
  • A-port supply range from 1.2 to 3.6 V
  • B-port supply range from 1.65 to 5.5 V
  • VCCA must be less than or equal to VCCB
  • OE low places all outputs in high-impedance state
  • Ioff supports partial power-down mode operation
  • Maximum low power consumption is 5 µA
  • Operating free-air temperature from -40 to 85 °C
  • B-port HBM ESD rating is ±15 kV
  • Multiple UQFN, SOIC, BGA, TSSOP, VQFN, DSBGA, NFBGA, WQFN, and SOT packages

Typical Applications

  • Mixed-voltage digital interfaces
  • A-port to B-port level translation
  • Partial power-down systems
  • Output-disable interface control
  • Low-power interface translation
  • High-impedance bus isolation
  • Port-separated ESD interface designs

Procurement Notes

When requesting a quote for TXB0104_Level-Shifter, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.

If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.

For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.

FAQ

What supply ranges does TXB0104_Level-Shifter support?

The A-port recommended supply range is 1.2 to 3.6 V, and the B-port recommended supply range is 1.65 to 5.5 V. The stated operating condition requires VCCA to be less than or equal to VCCB.

What happens when OE is driven low?

OE is referenced to VCCA. When OE is low, the datasheet states that all outputs are placed in the high-impedance state, allowing the translator outputs to be disabled.

Does this device support partial power-down operation?

Yes. The extracted datasheet facts state that Ioff supports partial power-down mode operation. Outputs are disabled to prevent damaging current backflow when the device is powered down.

What package options are listed for this translator?

Listed package options include UQFN-12, SOIC-14, BGA MicroStar Junior-12, TSSOP-14, VQFN-14, DSBGA-12, NFBGA-12, WQFN-14, and SOT-14 with the stated body dimensions.

Technical Review & Sourcing Note

Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.

This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.

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