CD74FCT273CTM

Overview

The CD74FCT273CTM is an octal D-type flip-flop from the FCT series, manufactured by Harris. It features positive edge triggering and true outputs in a CMOS technology. The device is housed in a PDSO20 (SOIC-20) package with 20 terminals. It operates within a temperature range of -40 °C to 85 °C. The load capacitance is specified at 50 pF, and it supports a maximum output current of 0.048 A.

Feature Summary

• Octal D-type flip-flop configuration with positive edge triggering
• CMOS technology providing true outputs
• Integrated bus hold inputs to eliminate external pull-up resistors

Applications

• High-speed data storage applications
• Parallel-to-serial conversion circuits
• Digital signal processing systems

Procurement Notes

Verify the manufacturer designation as Harris Corporation for this specific part number. Confirm the package type is PDSO20/SOIC-20. Check RoHS compliance status, as older Harris FCT parts may not be compliant. Ensure the operating temperature range matches your system requirements (-40 °C to 85 °C).

Selection Notes

Select this component when an octal register with high-speed performance is required. The FCT series offers compatibility with TTL logic levels while utilizing CMOS technology. Consider the SOIC-20 package for surface mount assembly. Verify that the 50 pF load capacitance specification meets your circuit design constraints.

Part Context

This component belongs to the Harris FCT (Fast CMOS) logic family, designed for high-speed digital applications. It serves as a fundamental building block for sequential logic circuits. The FCT series bridges the performance gap between standard CMOS and ECL technologies, offering faster switching speeds than conventional CMOS devices.

Replacement Considerations

Check for direct cross-references from Texas Instruments, such as the CY74FCT273CTSO or similar variants, noting potential differences in packaging or electrical specifications. Verify pinout compatibility before substitution.