CD74FCT374ATQM

Overview

The CD74FCT374ATQM is an octal D-type flip-flop manufactured by Harris Corporation, belonging to the FCT logic series. It features a 20-pin SOIC surface-mount package with plastic/epoxy construction. The device operates within a supply voltage range of 4.5 V to 5.5 V, typically at 5 V. It supports a maximum operating temperature of 85 °C and a minimum of -40 °C. Key electrical parameters include a propagation delay of 6.5 ns and a load capacitance of 50 pF. Outputs are three-state.

Feature Summary

• Octal D-type flip-flop architecture providing eight independent storage elements
• Three-state outputs allowing direct bus connection without external pull-up resistors
• Bus hold inputs designed to eliminate the need for external pull-up components

Applications

• Parallel data storage in high-speed digital systems
• Register file implementation in CMOS-based processors
• Data buffering between asynchronous logic domains

Procurement Notes

Verify component authenticity through authorized Harris Corporation channels or certified distributors. Confirm that the received part matches the specific CD74FCT374ATQM designation and packaging requirements. Ensure compliance with relevant environmental standards and handling procedures for sensitive CMOS devices during storage and installation.

Selection Notes

Select this component when designing systems requiring octal data latching with high-speed performance characteristics typical of the FCT series. Consider the 20-pin SOIC form factor for space-constrained surface-mount applications. Evaluate thermal management needs against the specified -40 °C to 85 °C operating range for reliable operation in industrial environments.

Part Context

This component is part of the Harris Corporation FCT (Fast CMOS Technology) family, known for compatibility with TTL inputs while utilizing CMOS technology. The manufacturer, Harris Semiconductor, was acquired by Intersil, which subsequently became part of Renesas Electronics. This historical context explains variations in documentation sources and branding across different product lifecycle stages.

Replacement Considerations

Publicly confirmed substitute part numbers include CY74FCT374ATQCT and CY74FCT374ATSOC from Texas Instruments. These alternatives offer similar functional specifications within the FCT logic family. Verify pinout compatibility and electrical characteristics before implementing any cross-manufacturer substitution.