SN74ALS240ADWR

Overview

The SN74ALS240ADWR is an octal buffer and line driver from the Texas Instruments ALS logic family, housed in a 20-pin SOIC package. It features three-state outputs controlled by active-low output-enable inputs. The device operates within a supply voltage range of 4.5 V to 5.5 V. Key electrical parameters include a propagation delay of 16 ns, a low-level output current of 32 mA, and a high-level output current of -2.6 mA. It supports a maximum operating temperature of +70°C.

Feature Summary

• Octal configuration providing eight independent buffer channels for parallel data handling.
• Three-state outputs allow direct connection to bus-oriented systems without external drivers.
• Active-low output-enable inputs facilitate easy control of data flow direction.

Applications

• Bus-oriented memory and address drivers
• Clock drivers and buffer circuits
• Bidirectional bus transceivers

Procurement Notes

Verify the specific suffix 'ADWR' against the manufacturer's official datasheet to confirm the SOIC-20 package and tape-and-reel packaging format. Ensure the component meets the required industrial temperature range specifications for your application environment before finalizing procurement decisions.

Selection Notes

Select this component when designing systems requiring high-speed buffering with minimal propagation delay. The ALS series offers a balance between power consumption and speed suitable for general-purpose digital logic applications. Confirm that the input voltage levels are compatible with the driving source logic family.

Part Context

This part belongs to the SN74ALSxxA series, representing Advanced Low-power Schottky TTL technology. It serves as a standard solution for signal buffering in legacy and mixed-signal digital designs, offering improved performance over standard LS logic while maintaining pin compatibility with industry-standard footprints.

Replacement Considerations

Compatible substitutes include SN74ALS240DR and SN74ALS240DW. Verify pinout and electrical characteristics match before substitution.