Specifications
| Type | Description |
|---|---|
| Part Number | TXB0104_Level-Shifter |
| Manufacturer | Texas Instruments |
| Product Type | I2C Switch |
| Category | Signal Chain |
| Package / Case | 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 |
| A-port supply voltage range | 1.2 to 3.6 V; recommended operating conditions; VCCA must be <= VCCB |
| B-port supply voltage range | 1.65 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 temperature | 150 °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 threshold | VCCI 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 voltage | VCCA 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 threshold | 0 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 voltage | 0 to VCCA x 0.35 V; VCCA=1.2 to 3.6 V, VCCB=1.65 to 5.5 V |
| Maximum low power consumption | 5 µA; ICC maximum stated in features |
| A-port output high voltage | 1.1 V minimum; BQA/DYY packages; IOH=-20 µA, VCCA=1.2 V, TA=25°C |
| A-port output high voltage | VCCA - 0.4 V minimum; BQA/DYY packages; IOH=-20 µA, VCCA=1.4 to 3.6 V, TA=25°C |
| A-port output low voltage | 0.3 V maximum; BQA/DYY packages; IOL=20 µA, VCCA=1.2 V, TA=25°C |
| A-port output low voltage | 0.4 V maximum; BQA/DYY packages; IOL=20 µA, VCCA=1.4 to 3.6 V, TA=25°C |
| B-port output high voltage | VCCB - 0.4 V minimum; BQA/DYY packages; IOH=-20 µA, VCCB=1.65 to 5.5 V, TA=25°C |
| B-port output low voltage | 0.4 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 behavior | OE low places all outputs in high-impedance state; OE referenced to VCCA |
| Power-off isolation | Ioff supports partial power-down mode operation; outputs disabled to prevent damaging current backflow when powered down |
| Datasheet Status | request_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.