CD74FCT574ATM

Overview

The CD74FCT574ATM is an octal edge-triggered D-type flip-flop with 3-state outputs, belonging to the FCT series. It utilizes CMOS technology and is housed in a PDSO20 plastic package. The device features true output polarity and independent control. It operates within a temperature range of -55 °C to 125 °C. Key electrical parameters include a load capacitance of 50 pF and a maximum output current (Iol) of 0.032 A.

Feature Summary

• Octal configuration providing eight parallel data paths for high-density bus applications
• Edge-triggered D-type latching mechanism ensures precise data capture at clock transitions
• Three-state outputs allow multiple devices to share common bus lines without interference

Applications

• Parallel data storage in high-speed computing systems
• Bus interface circuits requiring registered data holding
• Digital signal processing hardware for temporary data buffering

Procurement Notes

Verify component authenticity through official manufacturer channels or authorized distributors. Confirm that the specific part number matches the required FCT series specifications and package type. Check for compliance with relevant environmental standards if applicable to the end product. Ensure handling procedures account for the sensitivity of CMOS logic devices to electrostatic discharge during installation.

Selection Notes

Select this component when an octal register with three-state capability is required for bus architectures. Consider the wide operating temperature range suitable for industrial environments. Evaluate the CMOS technology benefits regarding power consumption and noise immunity compared to other logic families. Ensure the PDSO20 package fits the available PCB footprint constraints.

Part Context

This component is part of Harris Semiconductor's FCT (Fast CMOS Technology) logic family, designed for high-speed digital applications. The FCT series bridges the performance gap between standard TTL and advanced CMOS technologies. Harris Semiconductor was later acquired by Intersil, which subsequently became part of Renesas Electronics, affecting long-term supply chain availability and documentation hosting.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.