SN74LVC2T45DCURE4

Translators, Level Shifters Overview

The SN74LVC2T45DCURE4 is a dual-bit, dual-supply bus transceiver from the Texas Instruments LVC logic family. It operates with VCCA and VCCB supply voltages ranging from 1.65V to 5.5V, enabling level translation between various voltage nodes such as 1.8V, 2.5V, 3.3V, and 5V. The device features a VSSOP-8 package and supports data rates up to 420Mbps when converting between 3.3V and 5V systems. It includes an output drive capability of ±24mA at 3.3V and offers ESD protection exceeding JESD22 specifications.

Translators, Level Shifters Feature Summary

• Configurable dual-rail design supporting independent power supplies for each port across the full 1.65V to 5.5V range
• Vcc isolation feature ensures both ports enter high-impedance state if either Vcc input is grounded
• Supports partial power-down mode via Ioff circuitry to prevent backflow current damage during standby

Translators, Level Shifters Applications

• Personal electronics requiring asynchronous communication between buses
• Industrial control systems utilizing mixed voltage logic levels
• Enterprise infrastructure equipment needing reliable signal translation
• Telecommunications devices operating with varying supply rails

Translators, Level Shifters Procurement Notes

Verify the specific suffix 'E4' indicates RoHS compliance and environmental standards as defined by Texas Instruments. Confirm that the VSSOP-8 package dimensions match your PCB footprint requirements. Ensure the ordering information aligns with the manufacturer's current datasheet revision to avoid discrepancies in electrical characteristics or pinout configurations.

Translators, Level Shifters Selection Notes

Select this component when bidirectional level shifting is required between two distinct voltage domains within the 1.65V to 5.5V range. It is suitable for applications demanding low quiescent current and high noise immunity. Consider the propagation delay and data rate limits relative to your system clock speeds. Verify that the input logic levels are compatible with CMOS and TTL standards for robust interface performance.

Translators, Level Shifters Part Context

This part belongs to the SN74LVC2T45 series of dual-supply bus transceivers. It shares functional similarities with other LVC family members but is distinguished by its specific dual-bit configuration and VSSOP-8 packaging. The device is designed to facilitate seamless data transfer between different voltage levels without requiring external components for basic operation.

Translators, Level Shifters Replacement Considerations

SN74LVC2T45DCTT

Translators, Level Shifters FAQ

How does the Vcc isolation feature function?

If either Vcca or Vccb is grounded, the Vcc isolation feature forces both ports into a high-impedance state, preventing unintended signal transmission or power flow.

What is the maximum data rate for this transceiver?

The maximum data rate is 420Mbps when translating between 3.3V and 5V systems. Lower rates apply for other voltage combinations, such as 75Mbps for 1.8V conversions.