SN74LS540N

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LS540N is an octal buffer and line driver manufactured by Texas Instruments, belonging to the 74LS logic family. It features eight non-inverting buffers with three-state outputs, housed in a 20-pin PDIP package. The device operates within a supply voltage range of 4.75V to 5.25V and supports a working temperature range of 0°C to 70°C. Key electrical characteristics include a high-level output current of 15mA and a low-level output current of 24mA.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides eight non-inverting buffer channels for signal driving applications
• Features three-state outputs allowing direct connection to bus structures
• Compatible with standard TTL logic families for interface flexibility

Buffers, Drivers, Receivers, Transceivers Applications

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

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific manufacturer source and date code upon procurement. Confirm that the component matches the original SN74LS540N specifications regarding pinout and electrical parameters. Ensure the packaging type corresponds to the required installation method for the target circuit design.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing systems requiring octal buffering with tri-state control capabilities. It is suitable for applications needing compatibility with standard 5V TTL logic levels. Consider the through-hole PDIP package constraints during PCB layout planning.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the widely used 74-series logic family, specifically the Low-power Schottky (LS) variant. It serves as a fundamental building block for digital logic circuits, providing signal isolation and drive strength enhancement between different stages of a digital system.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

Direct replacements include SN74LS540NSR and SN74LS540NRE4. Verify pin compatibility and electrical specifications before substitution.