TXS0102DCTR

Overview

The TXS0102DCTR is a 2-bit bidirectional voltage-level translator manufactured by Texas Instruments. It operates with VCCA ranging from 1.65V to 3.6V and VCCB from 2.3V to 5.5V, supporting mixed-voltage systems. The device features a propagation delay of 260 ns and functions within an operating temperature range of -40°C to +85°C. Packaged in an SM-8 (SSOP) surface-mount format, it supports open-drain and push-pull applications.

Feature Summary

• Provides bidirectional translation between low-voltage A-side and high-voltage B-side logic domains
• Supports both open-drain and push-pull output configurations for flexible interface compatibility
• Includes an active-low output enable (OE) pin to force high-impedance states and reduce power consumption

Applications

• I2C bus level shifting for mixed-voltage digital interfaces
• 1-Wire protocol communication translation
• Connecting microcontrollers operating at different supply voltages

Procurement Notes

Verify the specific package suffix DCTR corresponds to the SSOP-8 form factor required for your PCB footprint. Confirm RoHS compliance status through official manufacturer documentation prior to integration. Ensure design accounts for the OE pin pull-down requirements during power-up sequences to maintain signal integrity.

Selection Notes

Select this component when interfacing 1.8V or 3.3V logic with 5V systems using open-drain buses. The dual independent power rails allow tracking of respective domain voltages. Consider the 260 ns propagation delay against system timing requirements. Verify that the SM-8 package dimensions fit the available board space constraints.

Part Context

Part of the TXS0102 family of bidirectional translators designed for seamless communication between disparate voltage domains. The DCTR suffix indicates a specific tape-and-reel packaging variant suitable for automated surface-mount assembly processes.

Replacement Considerations

TXS0102DCUR: Identical electrical specifications but housed in a VSSOP-8 package instead of SM-8. Requires footprint modification.