Overview
The TXB0102DCUR is a 2-bit noninverting bidirectional voltage-level translator produced by Texas Instruments. This device is designed to facilitate 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 uses 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). The device is particularly useful in applications requiring voltage translation between different voltage domains while ensuring low power consumption and high reliability.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VCCA Range | 1.2 V to 3.6 V | V |
| VCCB Range | 1.65 V to 5.5 V | V |
| Operating Temperature Range | -40°C to 85°C | °C |
| Package Type | VSSOP (DCU) | - |
| Number of Pins | 8 | - |
| Maximum Data Rate | 100 Mbps | Mbps |
| ESD Protection | ±15 kV (Human-Body Model) | kV |
| Power Consumption (Max ICC) | 4 µA | µA |
Key Features
- Available in Texas Instruments NanoFree™ packages, which use the die as the package.
- Auto direction sensing for bidirectional translation.
- VCC isolation feature: all outputs are in the high-impedance state if either VCC input is at GND.
- OE input circuit referenced to VCCA.
- Low power consumption with a maximum ICC of 4 µA.
- Ioff supports partial-power-down mode operation.
- High ESD protection exceeding JESD 22 standards.
- Latch-up performance exceeds 100 mA per JESD 78, Class II.
Applications
The TXB0102DCUR is suitable for a variety of applications that require voltage translation between different voltage domains. These include:
- Desktop PCs and other computing systems.
- Embedded systems and microcontrollers.
- Communication devices and networking equipment.
- Industrial control systems and automation.
- Any system requiring bidirectional voltage-level translation between different voltage nodes.
Q & A
- What is the primary function of the TXB0102DCUR?
The TXB0102DCUR is a 2-bit noninverting bidirectional voltage-level translator, designed to translate voltage levels between different voltage domains.
- What are the voltage ranges for the A and B ports?
The A port operates from 1.2 V to 3.6 V, and the B port operates from 1.65 V to 5.5 V.
- What is the maximum data rate supported by the TXB0102DCUR?
The device supports a maximum data rate of 100 Mbps.
- What type of package is the TXB0102DCUR available in?
The device is available in a VSSOP (DCU) package with 8 pins.
- What is the operating temperature range of the TXB0102DCUR?
The operating temperature range is from -40°C to 85°C.
- Does the TXB0102DCUR have ESD protection?
- How does the device handle partial-power-down mode?
The device supports partial-power-down mode using Ioff circuitry, which disables the outputs when the device is powered down.
- What is the maximum power consumption of the TXB0102DCUR?
The maximum power consumption (ICC) is 4 µA.
- Is the TXB0102DCUR suitable for high-reliability applications?
- How should the OE input be configured during power-up or power-down?
The OE input must be tied to GND through a pulldown resistor to ensure the high-impedance state during power-up or power-down.
