TXS0102DCTTE4

Translators, Level Shifters Overview

The TXS0102DCTTE4 is a Texas Instruments dual-channel bidirectional voltage-level translator housed in an 8-pin SM-8 (SSOP) surface-mount package. It facilitates digital switching compatibility between mixed-voltage systems by utilizing two independent, configurable power rails: VCCA supporting 1.65V to 3.6V and VCCB supporting 2.3V to 5.5V. The device features open-drain outputs suitable for connecting with I2C or 1-Wire buses where data is bidirectional and no control signal is available. Key electrical parameters include a maximum propagation delay of 260 ns at 2.5V, an operating temperature range from -40°C to +85°C, and a supply current of 14.4 µA.

Translators, Level Shifters Feature Summary

• Supports bidirectional translation between low-voltage A-side (1.65V–3.6V) and high-voltage B-side (2.3V–5.5V) domains
• Open-drain output configuration designed for compatibility with open-drain drivers such as I2C and 1-Wire interfaces
• Independent power rail architecture allows flexible tracking of different system voltage nodes

Translators, Level Shifters Applications

• Establishing digital switching compatibility in mixed-voltage systems
• Connecting bidirectional data I/O lines like I2C or 1-Wire without dedicated control signals
• Level shifting between 1.8V, 2.5V, 3.3V, and 5V voltage nodes

Translators, Level Shifters Procurement Notes

Verify the specific suffix 'E4' against the manufacturer's official documentation to confirm lead-free compliance status and exact package dimensions. Ensure the SM-8 footprint matches the design requirements. Confirm that the open-drain output characteristics align with the pull-up resistor values required by the target bus protocol. Cross-reference the datasheet revision date to ensure all electrical specifications are current.

Translators, Level Shifters Selection Notes

Select this component when interfacing bidirectional open-drain buses between disparate voltage domains. The device requires VCCA to be less than or equal to VCCB during operation. Consider the OE pin configuration; if uncontrolled, it must be tied to VCCA to enable full bidirectional communication. Verify that the 260 ns propagation delay meets the timing constraints of the specific application protocol.

Translators, Level Shifters Part Context

This part belongs to the TXS0102 series of dual bidirectional voltage-level translators from Texas Instruments. The series is engineered for mixed-signal applications requiring seamless integration between low-power logic families and higher-voltage interfaces. The DCTT/E4 suffix indicates the specific tape-and-reel packaging format and manufacturing lot details within the SSOP-8 form factor.

Translators, Level Shifters Replacement Considerations

The TXS0102DCTR is a direct functional equivalent within the same series. Other variants such as TXS0102DTTR offer alternative packaging options like US-8. Ensure any substitute maintains the same bidirectional capability and open-drain output structure.