DM74ALS520WM

Comparators Overview

The DM74ALS520WM is an 8-bit magnitude comparator from the 74ALS logic family, manufactured by onsemi. It operates within a supply voltage range of 4.5V to 5.5V and features low-active outputs indicating equality (A=B). The device is housed in a 20-SOIC package with a width of 7.50mm. It supports surface mount installation and functions within a commercial temperature range of 0°C to 70°C. Propagation delay is specified at 20ns under 5V supply and 50pF load conditions. Output drive capabilities include 2.6mA high-level and 24mA low-level currents.

Comparators Feature Summary

• Performs 8-bit magnitude comparison with active-low output assertion for equality detection
• Utilizes Advanced Low-power Schottky (ALS) technology for optimized speed and power consumption
• Provides single-ended outputs in a standard 20-pin Small Outline Integrated Circuit package

Comparators Applications

• Digital data validation circuits requiring bit-matching verification
• Address decoding systems utilizing equality checks
• Control logic interfaces comparing digital input states

Comparators Procurement Notes

Verify component authenticity through authorized distributors as this part is discontinued. Confirm pinout compatibility with target PCB layouts before integration. Check RoHS compliance status against specific project requirements. Ensure replacement components meet identical electrical specifications for seamless migration. Validate package dimensions match existing footprint constraints.

Comparators Selection Notes

Select this component when 8-bit equality comparison is required within the 74ALS performance envelope. Consider the 20-SOIC package for surface-mount assembly needs. Evaluate propagation delay specifications against system timing requirements. Assess operating temperature range suitability for the intended environment. Compare output drive strength with downstream load requirements.

Comparators Part Context

This integrated circuit belongs to the 74ALS series, representing a generation of logic devices balancing speed and power efficiency. The DM74ALS520 variant specifically addresses digital comparison tasks. It serves as a functional block within larger digital systems where data integrity verification is critical. The component reflects historical design standards for medium-speed logic applications.

Comparators Replacement Considerations

SN74ALS520DW by Texas Instruments is a direct substitute. SN74ALS520NSR by Texas Instruments is listed as a similar alternative.