CD74FCT374CTM

Overview

The CD74FCT374CTM is an octal D-type flip-flop manufactured by Harris Corporation, belonging to the FCT/PCT-CMOS logic family. It features eight independent edge-triggered D-type registers with three-state outputs, housed in a 20-pin plastic Small Outline Package (SOP). The device operates on a nominal 5 V supply voltage and supports a wide operating temperature range from -40 °C to +85 °C. Key electrical parameters include a propagation delay of 5.2 ns at nominal supply, a maximum output current of 64 mA, and a load capacitance rating of 50 pF.

Feature Summary

• Octal D-type configuration providing eight independent data storage elements within a single integrated circuit package.
• Three-state output capability allowing multiple devices to share bus lines without signal contention.
• Edge-triggered operation ensures data capture occurs precisely during the low-to-high clock transition.
• Output Enable control functions independently of the register operation for flexible system management.

Applications

• High-speed parallel data buffering in digital communication systems
• Register stages within microprocessor-based memory architectures
• Interface circuits connecting CMOS logic to TTL-compatible loads

Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm that the part number matches the specific SOP-20 plastic package variant. Check for compliance status as indicated in documentation, noting potential restrictions regarding hazardous substances. Ensure the supplier provides valid traceability records for quality assurance purposes.

Selection Notes

Select this component when designing systems requiring octal data latching with high-speed performance characteristics. Consider the 5.2 ns propagation delay for timing-critical applications. Evaluate the 50 pF load capacitance against downstream circuit requirements. Ensure the operating temperature range aligns with the environmental conditions of the intended deployment scenario.

Part Context

This device is part of the Harris FCT series, designed for fast CMOS technology applications. It serves as a fundamental building block for sequential logic circuits. The FCT series bridges the gap between standard CMOS speed and TTL compatibility, making it suitable for mixed-logic environments.

Replacement Considerations

Cross-reference with CY74FCT374 variants from Texas Instruments for functional equivalence. Verify pinout compatibility and electrical parameter alignment before substitution. Consult official datasheets to confirm package dimensions and thermal characteristics match the existing design constraints.