SN74LVTH240PW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LVTH240PW is a 3.3-V ABT octal buffer and line driver with 3-state outputs, manufactured by Texas Instruments in a TSSOP-20 package. It operates within a supply voltage range of 2.7 V to 3.6 V and supports an input voltage up to 5.5 V for mixed-mode signal compatibility. The device features active bus-hold circuitry on data inputs and provides 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 allowing 5-V input and output voltages with 3.3-V VCC
• Active bus-hold circuitry eliminates the need for external pullup or pulldown resistors on data inputs
• Ioff and power-up 3-state functionality enables safe hot-insertion without damaging backflow currents
• Latch-up performance exceeds 500 mA per JESD 17 standard

Buffers, Drivers, Receivers, Transceivers Applications

• Mixed-mode signal translation between 5-V and 3.3-V system environments
• Hot-insertion applications requiring controlled power-up states
• Bus-oriented memory and address drivers
• Clock drivers and buffer circuits

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific ordering suffix 'PW' corresponds to the TSSOP-20 tube packaging configuration. Confirm that the required operating temperature range matches the SN74LVTH240 specification (-40°C to +85°C) rather than the SN54 variant. Ensure design compliance with the recommended operating conditions for VCC and input voltage levels to maintain specified electrical performance.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when 3.3-V ABT technology is required for octal buffering with 3-state control. The device is suitable for designs needing TTL interface capability to 5-V systems while operating at lower supply voltages. Consider the TSSOP-20 package constraints and thermal impedance if high-density surface mount assembly is planned. Verify that the 5.5-V input tolerance meets the source signal requirements.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LVTH240 family of 3.3-V ABT octal buffers and line drivers. It is functionally similar to other variants such as SN74LVTH240PWR (tape and reel) or SN74LVTH240DW (SOIC), differing primarily in packaging and shipping quantity. The SN74LVTH240 series is designed specifically for low-voltage operation while maintaining compatibility with higher voltage logic interfaces.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LVTH240PWR offers identical electrical specifications in a tape and reel format. SN74LVTH240DW provides the same functionality in an SOIC-20 package.