SN74LS240DW

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LS240DW is an octal buffer and line driver from the Texas Instruments 74LS logic series. It features eight independent channels with inverting polarity and three-state outputs, housed in a 20-pin SOIC package. The device operates within a supply voltage range of 4.75 V to 5.25 V. Key electrical characteristics include a maximum high-level output current of -8 mA and a low-level output current of 24 mA. Propagation delay is specified at 15 ns under a 15 pF load condition. The component supports an operating temperature range from 0 °C to +70 °C.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight independent buffering channels for signal distribution
• Features three-state outputs to enable bus-oriented connections
• Inverts input signals during transmission
• Supports standard TTL logic levels

Buffers, Drivers, Receivers, Transceivers Applications

• Memory address drivers
• Clock drivers
• Bus-oriented architectures

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the manufacturer part number SN74LS240DW against official Texas Instruments documentation to confirm the specific SOIC-20 package and LS logic family specifications. Ensure compatibility with 5V systems and check for RoHS compliance status in current datasheets before procurement.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing circuits requiring octal buffering with three-state control. It is suitable for applications needing moderate speed and standard drive capabilities. Compare propagation delays and output currents against system requirements to ensure adequate performance margins.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the widely used 74LS (Low-power Schottky) logic family, known for balanced speed and power consumption. The SN74LS240 variant specifically provides inverting functionality, distinguishing it from non-inverting counterparts like the SN74LS244. It serves as a fundamental building block for digital interface designs.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Compatible substitutes include SN74LS240N and SN74LS240NSR. Verify pinout compatibility and electrical parameters such as propagation delay and output drive strength before substitution.