74FCT825CTQ

Overview

The IDT 74FCT825CTQ is an octal bus interface flip-flop belonging to the FCT logic series. It features eight D-type flip-flops with positive-edge triggering and non-inverting outputs. The device utilizes CMOS technology and provides three-state outputs for efficient bus interfacing. It operates within a supply voltage range of 4.75 V to 5.25 V, ensuring compatibility with standard 5 V logic systems. The component supports surface-mount installation in a QSOP-24 package.

Feature Summary

• Octal configuration providing eight independent D-type flip-flops for parallel data storage
• Three-state output capability enabling direct connection to system buses without external buffers
• Positive-edge triggered operation synchronized with clock signals for reliable data capture
• Non-inverting output polarity maintaining signal integrity across the interface

Applications

• High-speed data bus interface circuits requiring parallel storage
• System memory buffer applications involving wide data paths
• Digital control logic interfaces for microprocessor-based systems
• Data acquisition systems requiring temporary storage of parallel input signals

Procurement Notes

Verify the specific manufacturer designation, as Texas Instruments also produces the CY74FCT825 variant. Confirm that the QSOP-24 package matches the required footprint and pinout specifications for the target PCB design. Ensure the operating temperature range aligns with the environmental conditions of the intended application. Check for moisture sensitivity level requirements during assembly processing.

Selection Notes

Select this component when an octal storage solution with high drive capability is required for 5 V logic systems. The FCT series offers superior speed compared to standard 74LS logic while maintaining CMOS power efficiency. Consider the three-state outputs for managing multiple devices on a shared data bus. Verify that the propagation delay characteristics meet the timing constraints of the system clock frequency.

Part Context

This part belongs to the 74FCT family of fast CMOS logic devices, designed for high-performance digital applications. The FCT series bridges the performance gap between TTL and CMOS technologies, offering faster switching speeds with lower power consumption. Octal configurations like this model are commonly used in systems requiring substantial parallel data handling capabilities.

Replacement Considerations

The CY74FCT825CTQ from Texas Instruments serves as a direct functional equivalent. Both devices share identical logical functions, pinouts, and electrical characteristics within the FCT specification. Verify package compatibility and manufacturer-specific testing standards before substitution.