SN74LVTH240ZQNR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVTH240ZQNR is a 3.3-V ABT octal buffer and line driver with 3-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 2.7 V to 3.6 V and supports mixed-mode signal operation, allowing 5-V input and output voltages with 3.3-V VCC. The device features active bus-hold circuitry on data inputs, eliminating the need for external pullup or pulldown resistors. It includes Ioff and power-up 3-state support for hot-insertion applications. The ZQN package is a VFBGA variant designed for surface-mount technology.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Supports mixed-mode signal operation with 5-V tolerant inputs and outputs while operating at 3.3-V VCC
• Features active bus-hold circuitry on data inputs to maintain valid logic states without external components
• Provides Ioff and power-up 3-state functionality to prevent damaging current backflow and driver conflicts during hot insertion

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed-mode signal translation between 5-V and 3.3-V system environments
• Hot-insertion applications requiring protection against backflow currents
• Octal buffering and line driving in low-voltage digital circuits

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix ZQNR corresponds to the VFBGA package type when sourcing. Confirm that the component meets the required MIL-PRF-38535 standards if military-grade qualification is necessary, as standard catalog versions may differ in testing protocols. Ensure compatibility with the specified -40°C to 85°C operating temperature range for your application environment.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when an octal buffer with 3-state outputs is required for 3.3-V systems interfacing with 5-V logic levels. The LVTH series is suitable for applications needing high drive capability and mixed-signal tolerance. Consider the VFBGA package constraints regarding board space and thermal management compared to SOIC or TSSOP alternatives.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVTH240 family of 3.3-V ABT octal buffers/drivers. It shares functional characteristics with other variants like SN74LVTH240PWR and SN74LVTH240NSR but differs in packaging. The ZQN suffix specifically denotes the VFBGA package configuration, distinguishing it from standard plastic packages while maintaining identical electrical performance specifications.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVTH240GQNR is a confirmed substitute offering the same VFBGA package format.