Specifications
| Type | Description |
|---|---|
| Part Number | TXB0104 |
| Manufacturer | Texas Instruments |
| Product Type | Operational Amplifier |
| 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 |
| Channel Count | 4-bit; bidirectional noninverting voltage translation |
| Direction Control | Automatic direction sensing; no direction-control pin required |
| A-Port Supply Voltage Range | 1.2 to 3.6 V; recommended operating condition, VCCA <= VCCB |
| B-Port Supply Voltage Range | 1.65 to 5.5 V; recommended operating condition |
| Supply Ordering Constraint | VCCA <= VCCB; VCCA must not exceed VCCB |
| Maximum Low-Power Consumption | 5 uA max; ICC maximum stated in features |
| Output Enable Reference | Referenced to VCCA; OE input circuit supplied by VCCA |
| Output Disable State | High impedance; OE input low |
| Power-Off Isolation | All outputs high impedance; either VCC input at GND |
| Partial Power-Down Support | Supported; IOFF circuitry disables outputs to prevent current backflow |
| Latch-Up Performance | >100 mA; per JESD 78, Class II |
| A-Port HBM ESD Rating | ±2.5 kV; ANSI/ESDA/JEDEC JS-001 |
| B-Port HBM ESD Rating | ±15 kV; ANSI/ESDA/JEDEC JS-001 |
| A-Port CDM ESD Rating | ±1.5 kV; JEDEC JESD22-C101 |
| B-Port CDM ESD Rating | ±1.5 kV; JEDEC JESD22-C101 |
| Operating Free-Air Temperature | -40 to 85 °C; recommended operating condition |
| Absolute Maximum VCCA | -0.5 to 4.6 V; over operating free-air temperature range |
| Absolute Maximum VCCB | -0.5 to 6.5 V; over operating free-air temperature range |
| Absolute Maximum A-Port Input Voltage | -0.5 to 4.6 V; input voltage VI |
| Absolute Maximum B-Port Input Voltage | -0.5 to 6.5 V; input voltage VI |
| Absolute Maximum Continuous Output Current | -50 to 50 mA; IO |
| Absolute Maximum Continuous Current Through VCCA, VCCB, or GND | -100 to 100 mA; supply or ground current |
| Absolute Maximum Junction Temperature | 150 °C; TJ |
| Storage Temperature Range | -65 to 150 °C; Tstg |
| Data Input High-Level Threshold | 0.65 x VCCI; data inputs, VCCA=1.2V to 3.6V, VCCB=1.65V to 5.5V |
| Data Input Low-Level Threshold | 0 to 0.35 x VCCI; data inputs, VCCA=1.2V to 5.5V shown, VCCB=1.65V to 5.5V |
| OE High-Level Input Voltage | 0.65 x VCCA to 5.5 V; OE input, VCCA=1.2V to 3.6V, VCCB=1.65V to 5.5V |
| OE Low-Level Input Voltage | 0 to 0.35 x VCCA; OE input, VCCA=1.2V to 3.6V, VCCB=1.65V to 5.5V |
| A-Port High-Impedance or Power-Off Output Voltage | 0 to 3.6 V; voltage applied to A-port output in high-impedance or power-off state |
| B-Port High-Impedance or Power-Off Output Voltage | 0 to 5.5 V; voltage applied to B-port output in high-impedance or power-off state |
| A-Port Input Transition Rate | 40 ns/V max; A-port inputs, VCCA=1.2V to 3.6V, VCCB=1.65V to 5.5V |
| B-Port Input Transition Rate | 40 ns/V max; B-port inputs, VCCB=1.65V to 3.6V, VCCA=1.2V to 3.6V |
| B-Port Input Transition Rate at 5V | 30 ns/V max; B-port inputs, VCCB=4.5V to 5.5V, VCCA=1.2V to 3.6V |
| A-Port Output High Voltage | 1.1 V min; BQA/DYY, IOH=-20 uA, VCCA=1.2V, TA=25°C |
| A-Port Output High Voltage | VCCA - 0.4 V min; BQA/DYY, IOH=-20 uA, VCCA=1.4V to 3.6V, TA=25°C |
| A-Port Output Low Voltage | 0.3 V max; BQA/DYY, IOL=20 uA, VCCA=1.2V, TA=25°C |
| A-Port Output Low Voltage | 0.4 V max; BQA/DYY, IOL=20 uA, VCCA=1.4V to 3.6V, TA=25°C |
| B-Port Output High Voltage | VCCB - 0.4 V min; BQA/DYY, IOH=-20 uA, VCCB=1.65V to 5.5V, TA=25°C |
| B-Port Output Low Voltage | 0.4 V max; BQA/DYY, IOL=20 uA, VCCB=1.65V to 5.5V, TA=25°C |
| OE Input Current | -1 to 1 uA at 25°C; -2 to 2 uA over -40°C to 85°C; BQA/DYY, VI=VCCI or GND, VCCA=1.2V to 3.6V, VCCB=1.65V to 5.5V |
| A-Port Off-State Current | -1 to 1 uA at 25°C; -2 to 2 uA over -40°C to 85°C; BQA/DYY, VCCA=0V, VCCB=0V to 5.5V, VI or VO=0V to 3.6V |
| B-Port Off-State Current | -1 to 1 uA at 25°C; -2 to 2 uA over -40°C to 85°C; BQA/DYY, VCCA=0V to 3.6V, VCCB=0V, VI or VO=0V to 5.5V |
| High-Impedance Output Current | -1 to 1 uA at 25°C; -2 to 2 uA over -40°C to 85°C; BQA/DYY, A or B port, OE=GND, VCCA=1.2V to 3.6V, VCCB=1.65V to 5.5V |
| Datasheet Status | request_only |
Product Overview
The TXB0104 is a Texas Instruments 4-bit bidirectional noninverting voltage-level translator in the Signal_Chain category. It provides automatic direction sensing, so no direction-control pin is required for normal bidirectional translation. The A-port supply operates from 1.2 to 3.6 V, while the B-port supply operates from 1.65 to 5.5 V, with the stated supply-ordering constraint that VCCA must not exceed VCCB.
The device supports output enable control referenced to VCCA. When OE is low, outputs enter a high-impedance state. If either VCC input is at GND, all outputs are high impedance, and IOFF circuitry supports partial power-down operation by disabling outputs to prevent current backflow.
Package options listed for TXB0104 include 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 specified from -40 to 85 °C. Electrical limits include 5 uA maximum low-power consumption, defined input thresholds, 40 ns/V maximum transition rates on A and B ports under stated ranges, and 30 ns/V maximum B-port transition rate at 5 V.
Key Features
- 4-bit bidirectional noninverting voltage translation
- Automatic direction sensing without direction-control pin
- A-port supply range from 1.2 to 3.6 V
- B-port supply range from 1.65 to 5.5 V
- VCCA must not exceed VCCB
- 5 uA maximum low-power consumption
- OE input referenced to VCCA
- OE low places outputs in high impedance
- Power-off isolation when either VCC input is grounded
- IOFF circuitry supports partial power-down operation
- B-port HBM ESD rating of ±15 kV
- Operating free-air temperature from -40 to 85 °C
Typical Applications
- Mixed-voltage digital interfaces
- Bidirectional logic voltage translation
- Four-bit signal translation paths
- Systems without direction-control GPIO
- Output-disable interface designs
- Partial power-down signal paths
- Power-off isolated logic connections
- Low-current interface translation
Procurement Notes
When requesting a quote for TXB0104, 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 type of translator is the TXB0104?
The TXB0104 is a Texas Instruments 4-bit bidirectional noninverting voltage-level translator in the Signal_Chain category. It uses automatic direction sensing, so no separate direction-control pin is required for bidirectional translation.
What supply ranges does TXB0104 support?
The A-port supply range is 1.2 to 3.6 V, and the B-port supply range is 1.65 to 5.5 V under recommended operating conditions. The supply ordering constraint requires VCCA to be less than or equal to VCCB.
What happens when OE is low on TXB0104?
The OE input is referenced to VCCA. When OE is low, the TXB0104 outputs are placed in a high-impedance state. The datasheet facts also specify high-impedance outputs when either VCC input is at GND.
Does TXB0104 support partial power-down operation?
Yes. The extracted datasheet facts specify partial power-down support through IOFF circuitry. This circuitry disables outputs to prevent current backflow, and power-off isolation places all outputs in high impedance when either VCC input is grounded.
What package options are listed for TXB0104?
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 dimensions stated in the package_case field.
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.