SN74AS20NSR

Overview

The SN74AS20NSR is a quadruple 2-input positive NAND gate from the Texas Instruments AS logic family. It operates within a supply voltage range of 4.5 V to 5.5 V and features a SOIC-14 surface-mount package. The device exhibits a propagation delay of 4.5 ns, with low-level output current capability of 400 uA and high-level output current of -8 mA. It functions reliably across an operating temperature range of 0°C to +70°C.

Feature Summary

• Provides four independent 2-input NAND logic gates in a single integrated circuit
• Utilizes Advanced Schottky (AS) technology for high-speed switching performance
• Features standard TTL-compatible input and output characteristics

Applications

• Digital logic signal processing circuits
• Microprocessor system interface designs
• General-purpose combinational logic implementation

Procurement Notes

Verify the specific suffix 'NSR' corresponds to the SOIC-14 package and reel packaging configuration as documented by Texas Instruments. Confirm RoHS compliance status through official manufacturer datasheets or environmental files before integration into production assemblies.

Selection Notes

Select this component when high-speed NAND functionality is required in a compact surface-mount form factor. Ensure the design accommodates the specified 4.5 V to 5.5 V supply voltage range and the thermal constraints of the SOIC-14 package for the intended operating environment.

Part Context

This part belongs to the SN74AS series, representing Texas Instruments' Advanced Schottky logic family. It serves as a surface-mount variant of the SN74AS20, offering improved speed over standard LS logic while maintaining compatibility with existing TTL-based system architectures.

Replacement Considerations

Compatible substitutes include other SN74AS20 variants such as SN74AS20N or SN74AS20D, provided the package type matches the board layout requirements.