SN74LXC1T45DBVR

Translators, Level Shifters Overview

The SN74LXC1T45DBVR is a single-bit, dual-supply noninverting bidirectional voltage level translation device manufactured by Texas Instruments. It operates with VCCA and VCCB supply voltages ranging from 1.1V to 5.5V, enabling flexible interface between various logic families. The device features a direction control (DIR) input referenced to VCCA to manage data flow between ports A and B. It supports maximum data rates up to 420Mbps at 3.3V to 5.0V supplies. The component includes Schmitt-trigger inputs for noise immunity and offers high drive strength of up to 32mA at 5V. It is housed in a compact SOT-23-6 package suitable for surface-mount applications.

Translators, Level Shifters Feature Summary

• Dual-supply architecture allows independent configuration of I/O voltage levels across the full 1.1V to 5.5V range
• Schmitt-trigger inputs provide robust noise filtering for slow or noisy signal transitions
• Integrated dynamic pull-down resistors on I/O pins reduce external component requirements
• Control inputs feature integrated static pull-down resistors supporting floating DIR states

Translators, Level Shifters Applications

• Asynchronous communication interfaces between microcontrollers and peripherals operating at different voltage nodes
• Level shifting in portable consumer electronics requiring low power consumption
• Industrial control systems interfacing 1.8V, 2.5V, 3.3V, and 5V logic domains
• Communication and network equipment requiring reliable bidirectional data transfer

Translators, Level Shifters Procurement Notes

Verify the specific suffix 'DBVR' indicates tape-and-reel packaging when sourcing. Confirm RoHS compliance status through official manufacturer documentation or authorized distributor certificates. Ensure the supplier provides valid traceability for automotive or industrial grade requirements if applicable. Cross-reference the datasheet revision date to ensure compatibility with current design specifications.

Translators, Level Shifters Selection Notes

Select this component when a single-channel bidirectional translator is required between dissimilar voltage domains. It is suitable for designs needing Schmitt-trigger input characteristics to handle degraded signals. Consider the SOT-23-6 package constraints for PCB layout space. Verify that the DIR pin can be properly biased, as it references VCCA logic levels.

Translators, Level Shifters Part Context

This device belongs to the SN74LXC1T45 family of single-bit bus transceivers. It shares functional similarities with the SN74LVC1T45 but offers extended voltage support down to 1.1V. The DBVR suffix denotes the SOT-23-6 surface-mount package with tape-and-reel delivery. It serves as a bridge for mixed-voltage digital systems.

Translators, Level Shifters Replacement Considerations

SN74LVC1T45DBVR is a compatible alternative within the same package, though it lacks the 1.1V lower voltage limit. SN74LXC1T45DBVRE4 is an equivalent lead-free variant. Verify pinout compatibility before substitution.