SN74LVC1T45DBVR

Translators, Level Shifters Overview

The SN74LVC1T45DBVR is a single-bit bidirectional voltage-level translator with configurable voltage translation and three-state outputs. It utilizes two independent, configurable power rails: VCCA (1.65V to 5.5V) and VCCB (1.65V to 5.5V). The device supports asynchronous communication between data buses via a Direction (DIR) control input. Key electrical parameters include a maximum propagation delay of 3.9ns at specific conditions, output currents of ±32mA, and quiescent current of 4µA. Operating temperature ranges from -40°C to +85°C in a SOT-23-6 package.

Translators, Level Shifters Feature Summary

• Supports universal low-voltage bidirectional translation between 1.8V, 2.5V, 3.3V, and 5V nodes using dual independent power rails.
• Features VCC isolation functionality that places both ports in a high-impedance state if either VCC input is at ground potential.
• Includes Ioff support for partial power-down mode operation, disabling outputs to prevent damaging current backflow during power loss.

Translators, Level Shifters Applications

• Asynchronous communication between two data buses operating at different logic levels
• Portable equipment requiring low-power voltage translation
• Industrial and commercial systems interfacing mixed-voltage components

Translators, Level Shifters Procurement Notes

Verify the complete part number including suffixes such as 'R' for tape-and-reel packaging against official Texas Instruments documentation. Confirm RoHS compliance status and ensure the component matches the specified SOT-23-6 footprint. Cross-reference datasheet revisions to validate electrical characteristics and pinout configurations prior to integration.

Translators, Level Shifters Selection Notes

Select this component when designing circuits requiring a single-channel bidirectional interface between disparate voltage domains within the 1.65V to 5.5V range. Ensure the DIR pin is driven by VCCA-compatible logic. Verify that the required data rate does not exceed the limits defined for the specific target voltage conversion scenario.

Translators, Level Shifters Part Context

This device belongs to the SN74LVC1T45 family of voltage-level translators manufactured by Texas Instruments. It is designed for low-voltage CMOS applications and serves as a bridge for interoperability between different logic families. The DBVR suffix indicates the specific SOT-23-6 surface-mount package variant.

Translators, Level Shifters Replacement Considerations

SN74LVC1T45DBVT is an alternative package variant within the same functional family. SN74LVC1T45DCKR offers the same electrical performance in an SC-70 package. SN74LVC1T45DPKR provides equivalent functionality in a USON-6 package.