TXB0101DCKR

Translators, Level Shifters Overview

The TXB0101DCKR is a single-channel bidirectional voltage-level translator manufactured by Texas Instruments. It operates with VCCA ranging from 1.2 V to 3.6 V and VCCB from 1.65 V to 5.5 V, ensuring VCCA does not exceed VCCB. The device features auto direction sensing, three-state outputs, and supports partial-power-down mode via Ioff circuitry. It provides ±15-kV ESD protection on the B port and exceeds JESD 78 Class II latch-up performance. Packaged in a SC-70 (SOT-363) housing with six pins, it functions within a temperature range of -40 °C to +85 °C.

Translators, Level Shifters Feature Summary

• Auto direction sensing eliminates the need for a separate direction control pin
• Supports partial-power-down mode operation through dedicated Ioff circuitry
• Provides high electrostatic discharge protection on the B port

Translators, Level Shifters Applications

• Bidirectional translation between 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, and 5-V nodes
• Interface circuits requiring automatic data flow direction detection
• Systems utilizing open-drain or push-pull output configurations

Translators, Level Shifters Procurement Notes

Verify the specific package marking and date code against the manufacturer's latest production change notices. Confirm that the VCCA supply rail remains lower than or equal to VCCB during all operational states to ensure correct level shifting behavior. Ensure input signals comply with the specified high-level input voltage thresholds for both ports.

Translators, Level Shifters Selection Notes

Select this component when a single channel of bidirectional translation is required without external direction control logic. It is suitable for applications where power sequencing allows VCCA to be active before or simultaneously with VCCB. Consider the SC-70 footprint constraints and the specific voltage compatibility requirements between the source and destination logic families.

Translators, Level Shifters Part Context

This part belongs to the TXB family of voltage-level translators designed for low-power applications. Unlike fixed-direction translators, the TXB series utilizes internal circuitry to detect signal flow automatically. The DCKR suffix indicates the SC-70 surface-mount package variant optimized for space-constrained designs.

Translators, Level Shifters Replacement Considerations

TXB0101DRLR: Alternative SOIC-6 package version with identical electrical characteristics.