SN74LXC2T45QDCURQ1

Translators, Level Shifters Overview

The SN74LXC2T45QDCURQ1 is an automotive-grade, dual-bit, dual-supply noninverting bidirectional voltage level translation device. It supports configurable voltage levels ranging from 1.1 V to 5.5 V on both ports. The component features Schmitt-trigger inputs for noise immunity and integrated pull-down resistors on I/O and control pins. It offers a maximum data rate of 420 Mbps when translating between 3.3 V and 5.0 V. The device operates within a temperature range of -40°C to +125°C and includes VCC isolation and partial-power-down support.

Translators, Level Shifters Feature Summary

• Fully configurable dual-rail design allows independent operation of each port across the full voltage range
• Schmitt-trigger inputs enable reliable signal processing for slow or noisy input conditions
• Integrated dynamic pull-down resistors on I/O and static pull-downs on control inputs reduce external component requirements
• VCC isolation and disconnect features ensure high-impedance states during power loss or floating supply conditions

Translators, Level Shifters Applications

• Infotainment head units
• ADAS fusion systems
• Driving indicator LEDs or buzzers
• Debouncing mechanical switches

Translators, Level Shifters Procurement Notes

Verify that the specific ordering suffix matches the required package type, as the SN74LXC2T45-Q1 family utilizes multiple distinct packages including VSSOP and SON. Confirm that the AEC-Q100 qualification status aligns with the target automotive application requirements. Ensure the selected variant corresponds to the intended voltage translation parameters and thermal performance needs.

Translators, Level Shifters Selection Notes

Select this component when interfacing logic families requiring bidirectional translation between widely varying voltage domains, such as 1.1 V to 5.5 V. The integrated pull-down resistors simplify circuit design by eliminating the need for external components on control lines. Verify that the operating temperature range meets the environmental constraints of the deployment location.

Translators, Level Shifters Part Context

This device belongs to the SN74LXC2T45-Q1 family of automotive bus transceivers. It shares functional similarities with other LVC-level shifters but is distinguished by its extended voltage range starting at 1.1 V and its robust ESD protection capabilities. The Q1 designation indicates compliance with automotive reliability standards.

Translators, Level Shifters Replacement Considerations

SN74LVC2T45QDCURQ1

Translators, Level Shifters FAQ

How does the device handle floating control inputs?

The DIR control input features an integrated static pull-down resistor, which ensures the line remains defined and prevents floating states when not actively driven.

What happens if one of the VCC supplies is disconnected?

If either VCC supply drops below 100 mV or is disconnected, all I/Os are pulled down and transition to a high-impedance state to prevent backflow.