SN74LS240NSR

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LS240NSR is a hex buffer and line driver manufactured by Texas Instruments, belonging to the 74LS logic series. It features two independent four-bit channels with three-state outputs, housed in a 20-SOIC package. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports surface-mount installation. It provides high-level output current of 15 mA and low-level output current of 24 mA, with a propagation delay of 19 ns at 5 V. The component functions as an inverting buffer suitable for bus-oriented systems.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Hex configuration providing two independent four-bit channels for flexible signal routing
• Three-state outputs enabling direct connection to system buses without external switches
• Inverting logic function for signal phase adjustment and buffering
• High drive capability supporting standard TTL loads

Buffers, Drivers, Receivers, Transceivers Applications

• Bus-oriented memory and address drivers
• Clock drivers and timing buffers
• General-purpose digital signal buffering

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix NSR against the manufacturer's official datasheet to confirm the SOIC-20 package type and tape-and-reel packaging format. Ensure compatibility with the target operating temperature range of 0°C to 70°C. Confirm RoHS compliance status through the latest regulatory documentation provided by Texas Instruments before finalizing procurement specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing circuits requiring hex inverting buffers with three-state control for bus applications. Consider the 74LS series characteristics regarding power consumption and speed relative to other logic families. Verify that the 20-pin SOIC footprint matches the PCB layout requirements and that the voltage levels align with the system's 5 V logic standards.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the SN74LS240 family of hex buffers and line drivers. It is designed for use in digital systems where bus driving and signal inversion are required. The LS series offers a balance of speed and power dissipation, making it suitable for general-purpose logic applications in consumer and industrial electronics.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Check for SN74LS240N or SN74LS240DR as potential alternatives depending on package preference (PDIP vs SOIC). Verify functional equivalence and pinout compatibility with the original design requirements.