SN74ALS679NS

Comparators Overview

The SN74ALS679NS is a 12-bit address comparator from Texas Instruments' ALS logic series, housed in a 20-pin Small Outline (SO) package. It functions as a magnitude comparator with active high outputs to indicate equality between two 12-bit binary words. The device operates within a standard 5V supply range and features low power consumption characteristic of the Advanced Low-power Schottky family.

Comparators Feature Summary

• Provides simultaneous active high output signals when two 12-bit input addresses are identical
• Utilizes Advanced Low-power Schottky technology for reduced power dissipation
• Designed for high-speed digital comparison tasks in memory addressing systems

Comparators Applications

• Memory address decoding and validation
• Digital system error checking for data integrity
• Peripheral identification in bus architectures

Comparators Procurement Notes

Verify the specific suffix 'NS' corresponds to the 20-lead SOIC package variant. Confirm that the component meets required RoHS compliance standards for the intended manufacturing process. Ensure the operating temperature range aligns with the commercial grade specifications defined in the official datasheet.

Comparators Selection Notes

Select this component when a dedicated 12-bit parallel comparison function is required without external logic gating. Consider the ALS series performance characteristics regarding propagation delay and power trade-offs against other logic families. Verify pin compatibility if replacing older 74S or 74LS equivalents in existing designs.

Comparators Part Context

This part belongs to the Texas Instruments SN74ALS679 family of 12-bit address comparators. It is distinct from general-purpose magnitude comparators by its specific optimization for address matching applications. The NS suffix denotes the surface-mount small outline integrated circuit package configuration.

Comparators Replacement Considerations

Direct substitutes include the SN74ALS679N for through-hole applications or other SN74ALS679 variants with compatible pinouts. Verify functional equivalence for 12-bit comparison before substitution.