QS74FCT521CTS0

Comparators Overview

The QS74FCT521CTS0 is an 8-bit identity comparator from the FCT series manufactured by Quality Semiconductor. It operates with a nominal supply voltage of 5 V, within a range of 4.75 V to 5.25 V. The device features active low outputs that indicate equality between two 8-bit inputs (A=B). It is housed in a CTS0 package and supports industrial temperature ranges.

Comparators Feature Summary

• Performs 8-bit magnitude comparison to determine if input A equals input B
• Provides active low output signals for equality detection
• Compatible with standard 5 V CMOS logic families

Comparators Applications

• Digital data path validation
• Address matching circuits
• System configuration verification

Comparators Procurement Notes

Verify the specific suffix CTS0 against the manufacturer's current datasheet to confirm package type and pinout compatibility. Ensure the sourcing channel provides original components from Quality Semiconductor or authorized distributors to avoid counterfeit parts. Check RoHS compliance status as indicated in available documentation.

Comparators Selection Notes

Select this component when an 8-bit identity comparison function is required with active low signaling. Consider the FCT series speed and drive capabilities relative to system timing requirements. Verify that the operating voltage range aligns with the target 5 V logic environment.

Comparators Part Context

This part belongs to the FCT (Fast CMOS) family, designed for high-speed digital applications. Quality Semiconductor produces this line of logic devices, which are often compatible with industry-standard 74FCT specifications. The QS prefix typically denotes Quality Semiconductor branding.

Comparators Replacement Considerations

Cross-reference with Renesas 74FCT521ATQG for similar 8-bit identity comparator functionality. Verify pinout and electrical characteristics match before substitution.