SN74LS240NS

Buffers, Drivers, Receivers, Transceivers Overview

The SN74LS240NS is a dual octal buffer and line driver from the Texas Instruments 74LS series. It features two independent buffers, each with four bits, providing eight inputs and eight outputs in total. The device utilizes open-collector outputs and operates within a supply voltage range of 4.75 V to 5.25 V. It is housed in a 20-pin SOIC package and supports surface-mount installation. The component functions as a non-inverting buffer suitable for driving high-capacitance loads.

Buffers, Drivers, Receivers, Transceivers Feature Summary

• Provides dual independent buffering capabilities with open-collector outputs for flexible interfacing
• Supports direct connection to TTL, CMOS, and MOS memory buses
• Enables bidirectional data transmission when paired with external control circuitry

Buffers, Drivers, Receivers, Transceivers Applications

• Driving capacitive loads in digital systems
• Bus-oriented transmissions connecting microprocessors to memory
• Clock drivers and bus transceivers

Buffers, Drivers, Receivers, Transceivers Procurement Notes

Verify the specific suffix against the manufacturer's current datasheet to confirm pinout compatibility and electrical characteristics. Ensure the selected variant matches the required operating temperature range and packaging style for your design. Cross-reference the ordering information with official Texas Instruments documentation to avoid discrepancies in functional specifications.

Buffers, Drivers, Receivers, Transceivers Selection Notes

Select this component when designing circuits requiring robust signal buffering for bus architectures. The open-collector output structure allows for wired-OR configurations and level shifting. Consider the propagation delay and drive capability requirements relative to the load capacitance. Verify that the 20-pin SOIC package fits the available PCB real estate and manufacturing constraints.

Buffers, Drivers, Receivers, Transceivers Part Context

This part belongs to the standard 74LS logic family, known for low-power Schottky performance. It serves as a fundamental interface component in legacy and industrial digital designs. The SN74LS240NS specifically addresses the need for isolated buffering between different sections of a system, ensuring signal integrity across long traces or noisy environments.

Buffers, Drivers, Receivers, Transceivers Replacement Considerations

SN74LS240NSR

Buffers, Drivers, Receivers, Transceivers FAQ

What type of outputs does the SN74LS240NS provide?

The device provides open-collector outputs, which allow for wired-OR connections and flexibility in driving various load types.

Is the SN74LS240NS an inverting or non-inverting buffer?

It is a non-inverting buffer, meaning the output state follows the input state without logical inversion.