40574K

Overview

The IDT 40574K is a specialized integrated circuit component manufactured by Integrated Device Technology Inc. It is functionally equivalent to the 54FCT574EB octal D-type flip-flop with output latches, designed for high-speed digital logic applications. The device features FCT (Fast CMOS Technology) architecture, providing high-speed operation and low power consumption. It is packaged in a dual-marked configuration, indicating compatibility or equivalence with specific military or industrial grade standards associated with the 54FCT series. This component serves as a critical element in data storage and bus interface circuits within electronic systems.

Feature Summary

• Implements octal D-type flip-flop functionality with registered outputs for stable data holding
• Utilizes Fast CMOS (FCT) technology to ensure high switching speeds and reduced power dissipation
• Designed for direct interface with TTL-compatible logic families without requiring level shifting

Applications

• High-speed data bus interface circuits
• Octal register and latch implementations in digital systems
• Industrial control system logic processing

Procurement Notes

Verify the dual marking specification against the required 54FCT574EB equivalence before integration. Confirm RoHS compliance status, as indicated specifications may vary. Ensure the package type matches the PCB footprint requirements. Cross-reference the manufacturer's latest datasheet for pinout and electrical characteristics to guarantee functional compatibility with existing designs.

Selection Notes

Select this component when an octal D-type flip-flop with registered outputs is required for high-speed data path management. The FCT technology makes it suitable for systems demanding fast propagation delays and low power usage. Consider the dual-marked nature if replacement or sourcing from alternative distributors is necessary, ensuring the electrical parameters align with the target application's timing constraints.

Part Context

Integrated Device Technology Inc, now part of Renesas Electronics, specializes in high-performance semiconductor solutions. The 40574K belongs to the FCT family, known for bridging the performance gap between standard CMOS and ECL technologies. This specific part number represents a specialized variant often used in legacy or high-reliability industrial applications where the 54FCT574EB specification is mandated.

Replacement Considerations

Direct substitutes include other manufacturers' equivalents of the 54FCT574EB octal D-type flip-flop. Verify pin compatibility and electrical characteristics such as propagation delay and output drive strength. Ensure that any replacement maintains the same FCT logic family characteristics to preserve system timing integrity.