SN74S240DWR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74S240DWR is an octal buffer and line driver manufactured by Texas Instruments, featuring three-state outputs. It belongs to the SN74S logic series and utilizes bipolar technology. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports surface-mount installation in a 20-pin SOIC package. Key electrical characteristics include a propagation delay of 6 ns at 5 V, with high-level output current capability of -15 mA and low-level output current of 64 mA. The component functions as an inverting buffer with eight channels.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides octal buffering and line driving capabilities with three-state outputs for bus-oriented systems.
• Utilizes bipolar Schottky (S) logic technology for high-speed performance.
• Features inverting polarity to support signal inversion requirements in digital circuits.

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented systems requiring high-speed data transmission
• Memory register drivers
• Clock drivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific datasheet revision and manufacturing date code upon procurement. Confirm that the SOIC-20 package dimensions match the target PCB footprint. Ensure the supply voltage provided aligns with the specified 4.5 V to 5.5 V operating range to maintain signal integrity and prevent device damage.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when bipolar Schottky speed is required for octal bus applications. Compare against SN74AS240 for lower power consumption or SN74LS240 for cost-sensitive, slower applications. Verify that the 3-state output control signals are compatible with the system logic levels.

Buffers, Drivers, Receivers, Transceivers Part Context

This part is part of the SN74S family of high-speed Schottky logic devices. It serves as an octal buffer/driver variant within the broader 74-series logic ecosystem, designed for applications demanding faster switching speeds than standard TTL while maintaining compatibility with existing logic families.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74S240DWRE4 is a verified equivalent part number from Texas Instruments.