SN74LXC2T45DTMR

Translators, Level Shifters Overview

The SN74LXC2T45DTMR is a dual-bit, dual-supply noninverting bidirectional voltage level translation device from Texas Instruments. It features fully configurable dual-rail design allowing each port to operate from 1.1 V to 5.5 V. The A port and DIR control pin are referenced to VCCA logic levels, while the B port is referenced to VCCB logic levels. It supports data transmission rates up to 420 Mbps for 3.3 V to 5.0 V conversions. The device includes Schmitt-trigger inputs, high drive strength up to 32 mA at 5 V, and low power consumption with maximum supply currents of 6 µA across the operating temperature range.

Translators, Level Shifters Feature Summary

• Fully configurable dual-rail design allows independent operation of ports across a wide voltage range
• Robust, glitch-free power supply sequencing ensures stable operation during power transitions
• Schmitt-trigger inputs effectively eliminate slow or noisy input signals
• I/Os feature integrated dynamic pull-down resistors to reduce external component requirements

Translators, Level Shifters Applications

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

Translators, Level Shifters Procurement Notes

Verify the specific DTM (X2SON) package designation when sourcing this part number. Confirm that the application environment remains within the specified -40°C to +125°C operating temperature range. Ensure power supply sequencing adheres to the glitch-free requirements to maintain signal integrity. Check for compatibility with existing LVC family level shifters if migrating designs.

Translators, Level Shifters Selection Notes

Select this component for designs requiring bidirectional translation between disparate voltage domains without inverting logic states. The X2SON package offers a compact footprint suitable for space-constrained layouts. Consider the high drive capability for direct interfacing with loads like LEDs. Verify that the DIR control signal aligns with the VCCA domain for proper direction configuration.

Translators, Level Shifters Part Context

This device belongs to the SN74LXC2T45 series of dual-supply bus transceivers. It is designed to facilitate asynchronous communication between two data buses operating at different voltage levels. The technology leverages advanced CMOS processes to achieve low power consumption while maintaining high-speed performance capabilities suitable for modern digital interfaces.

Translators, Level Shifters Replacement Considerations

SN74LXC2T45DCT

Translators, Level Shifters FAQ

How does the DIR control pin determine data flow?

A high logic level on the DIR pin enables data transmission from the A port to the B port, while a low logic level enables transmission from the B port to the A port.

What happens if one of the VCC supplies drops below 100 mV?

If either VCC supply is less than 100 mV or disconnected, all I/O pins are pulled down and then enter a high-impedance state, supporting partial-power-down mode operation.