SN74LVTH240DW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVTH240DW is a 3.3-V ABT octal buffer and line driver with 3-state outputs, manufactured by Texas Instruments in a 20-pin SOIC (DW) package. 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. Electrical characteristics include a typical propagation delay of 2.6 ns at 3.3 V, high-level output current of -32 mA, and low-level output current of 64 mA.

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 backflow currents during hot insertion

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed-mode signal buffering between 3.3-V and 5-V system environments
• Unregulated battery operation down to 2.7 V
• Hot-insertion applications requiring controlled power-up and power-down states

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'DW' corresponds to the SOIC-20 tube packaging configuration. Confirm that the component meets RoHS compliance standards as indicated in the manufacturer's documentation. Ensure the operating temperature range aligns with the specified -40°C to +85°C requirement for your application environment.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring octal buffering with 3-state control and mixed-voltage compatibility. The SOIC-20 package is suitable for surface-mount assembly. Consider the device's ability to handle unregulated battery operation if power stability varies. The active bus-hold feature simplifies design by removing the need for additional passive components on unused inputs.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVTH240 family of 3.3-V ABT octal buffers and drivers. It is designed specifically for low-voltage VCC operation while providing TTL interface capabilities to 5-V systems. The DW suffix denotes the SOIC package type, distinguishing it from other variants like DB (SSOP), NS (SOP), or PW (TSSOP).

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVTH240DWR is an alternative version of the same logical function packaged in tape and reel format instead of tubes.