Overview
The TXB0104RUTR, produced by Texas Instruments, is a 4-bit bidirectional voltage-level translator designed for multi-voltage digital system applications. This device allows for universal low-voltage bidirectional translation between various voltage nodes, including 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, and 5-V. It features two separate configurable power-supply rails, with the A port tracking VCCA (1.2 V to 3.6 V) and the B port tracking VCCB (1.65 V to 5.5 V), ensuring that VCCA does not exceed VCCB.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package | UQFN (RUT) | 12 pins |
| Operating Temperature Range | -40°C to 85°C | |
| VCCA Range | 1.2 V to 3.6 V | |
| VCCB Range | 1.65 V to 5.5 V | |
| Maximum ICC | 5 µA | |
| ESD Protection (A Port) | 2500-V Human-Body Model, 1500-V Charged-Device Model | |
| ESD Protection (B Port) | ±15-kV Human-Body Model, 1500-V Charged-Device Model | |
| Maximum Data Rate | Up to 100 Mbps | |
| Junction-to-Ambient Thermal Resistance (RθJA) | 119.8 °C/W |
Key Features
- Automatic direction sensing for bidirectional translation
- VCC isolation feature: outputs are in high-impedance state if either VCC input is at GND
- Output enable (OE) input circuit referenced to VCCA
- Low power consumption with a maximum ICC of 5 µA
- Support for partial power-down mode operation using IOFF circuitry
- Latch-up performance exceeds 100 mA per JESD 78, Class II
- ESD protection exceeds JESD 22 standards
Applications
- Headsets
- Smartphones
- Tablets
- Desktop PCs
- Multi-voltage digital system applications
Q & A
- What is the primary function of the TXB0104RUTR?
The TXB0104RUTR is a 4-bit bidirectional voltage-level translator designed for multi-voltage digital system applications.
- What are the voltage ranges for VCCA and VCCB?
VCCA ranges from 1.2 V to 3.6 V, and VCCB ranges from 1.65 V to 5.5 V.
- What is the maximum data rate supported by the TXB0104RUTR?
The device supports up to 100 Mbps data rate.
- How does the output enable (OE) input work?
The OE input circuit is referenced to VCCA, and when OE is low, all outputs are placed in the high-impedance state.
- What kind of ESD protection does the TXB0104RUTR offer?
The device offers ±15-kV ESD protection on the B port and 2500-V ESD protection on the A port.
- Can the TXB0104RUTR operate in partial power-down mode?
- What is the thermal resistance (RθJA) of the UQFN (RUT) package?
The junction-to-ambient thermal resistance (RθJA) is 119.8 °C/W.
- What are some common applications for the TXB0104RUTR?
- How does the VCC isolation feature work?
If either VCC input is at GND, all outputs are placed in the high-impedance state.
- What is the maximum ICC (current consumption) of the TXB0104RUTR?
The maximum ICC is 5 µA.
