SN74ALS520NS

Comparators Overview

The SN74ALS520NS is an octal binary/BCD identity comparator manufactured by Texas Instruments. It operates within a supply voltage range of 4.5 V to 5.5 V and features a maximum power supply current of 19 mA. The device utilizes a SOIC-20 surface-mount package and supports operation temperatures from 0°C to +70°C. Electrical performance includes propagation delays of 12 ns, 20 ns, and 22 ns, with low-level output currents up to 24 mA and high-level output currents of -2.6 mA.

Comparators Feature Summary

• Performs identity comparison logic where outputs indicate equality between input pairs
• Utilizes ALS-TTL technology for reduced power consumption relative to standard speed
• Provides totem-pole outputs for direct interfacing with digital logic systems

Comparators Applications

• Octal data bus monitoring and validation
• Binary-coded decimal (BCD) verification in control circuits
• Digital system error detection through input equality checks

Comparators Procurement Notes

Verify the specific suffix 'NS' confirms the SOIC-20 surface-mount package variant distinct from other packaging options. Confirm RoHS compliance status via the manufacturer's official documentation before integration. Ensure the ordering part number matches the required pin configuration and electrical specifications for the target application environment.

Comparators Selection Notes

Select this component when an eight-bit identity comparison function is required in a compact surface-mount form factor. The ALS series offers a balance of speed and power efficiency suitable for general-purpose digital logic applications. Verify that the operating temperature range and supply voltage requirements align with the system design constraints.

Comparators Part Context

This device belongs to the SN74ALS520 family of octal identity comparators produced by Texas Instruments. It serves as a specialized logic integrated circuit designed for comparing two eight-bit digital words. The component is part of the broader Advanced Low-power Schottky (ALS) logic family, which provides improved performance characteristics over earlier generations.

Comparators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.