CD74FCT521CTM

Comparators Overview

The CD74FCT521CTM is an 8-bit identity comparator manufactured by Harris Corporation, belonging to the FCT series. It features active low outputs indicating equality (A=B) between two 8-bit inputs. The device operates within a supply voltage range of 4.75V to 5.25V and supports a quiescent current of 500 µA. It is housed in a 20-pin SOIC package and functions reliably across an industrial temperature range of -40°C to 85°C.

Comparators Feature Summary

• Provides active low output signal when input vectors are identical
• Supports high-speed digital logic operations via FCT technology
• Operates with standard 5V CMOS compatible power supplies

Comparators Applications

• Digital data path comparison circuits
• Address matching logic in memory systems
• Control logic for state verification

Comparators Procurement Notes

Verify component authenticity through authorized distributors or official Harris/Microchip channels. Confirm package marking matches the 20-SOIC specification. Check datasheet revisions for any updates on electrical characteristics or pinout configurations prior to integration into final designs.

Comparators Selection Notes

Select this component for applications requiring precise 8-bit equality detection with fast switching speeds. Ensure the design accommodates the specified 4.75V to 5.25V supply range. Consider thermal management within the -40°C to 85°C operating window during PCB layout and system integration phases.

Comparators Part Context

This part belongs to the Harris FCT (Fast CMOS Technology) family, designed for high-performance digital logic applications. It serves as a specialized comparator within the broader portfolio of logic ICs produced by Harris Corporation, now managed under Microchip Technology.

Comparators Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.