TXB0102DCUR

Translators, Level Shifters Overview

The TXB0102DCUR is a dual bidirectional voltage-level translator manufactured by Texas Instruments. It features automatic direction sensing and ±15kV electrostatic discharge protection. The device utilizes two independent configurable power rails: Port A supports voltages from 1.2 V to 3.6 V, while Port B accepts voltages from 1.65 V to 5.5 V, with the constraint that VCCA must not exceed VCCB. This architecture enables universal low-voltage bidirectional translation across common nodes including 1.2, 1.5, 1.8, 2.5, 3.3, and 5 V. The component operates within a temperature range of -40°C to +85°C and is housed in an 8-pin VSSOP package.

Translators, Level Shifters Feature Summary

• Automatic direction sensing eliminates the need for external direction control signals
• Ioff circuitry disables outputs to prevent current backflow during power-down states
• VCC isolation functionality places all outputs in a high-impedance state if either supply rail is grounded
• Supports half-shutdown mode operation via IOFF pin configuration

Translators, Level Shifters Applications

• Communication and networking equipment
• Portable consumer devices
• Computer systems and peripheral interfaces

Translators, Level Shifters Procurement Notes

Verify the specific manufacturer datasheet for the TXB0102 series to confirm exact electrical characteristics and mechanical dimensions. Ensure that the design environment strictly adheres to the requirement that VCCA does not exceed VCCB. Confirm that the OE input is properly pulled down to GND to maintain high-impedance states during power transitions. Validate compatibility with the target system's logic levels before finalizing procurement specifications.

Translators, Level Shifters Selection Notes

Select this component when interfacing between mixed-voltage digital systems requiring bidirectional data transfer without explicit direction control. It is suitable for applications needing robust ESD protection and low quiescent current consumption. Consider the VSSOP-8 package constraints regarding thermal dissipation and board space. Ensure the application can accommodate the specific voltage tracking requirements of the A and B ports.

Translators, Level Shifters Part Context

This part belongs to the TXB0102 family of voltage-level translators from Texas Instruments. These devices are designed to establish digital switching compatibility between systems operating at different voltage levels. The family offers various channel counts and packages, but the DCUR suffix specifically denotes the 8-pin VSSOP surface-mount variant intended for compact electronic designs.

Translators, Level Shifters Replacement Considerations

Publicly confirmed substitute part numbers were not identified in the provided documentation.