CY74FCT273TSOCT

Overview

The CY74FCT273TSOCT is an octal D-type flip-flop with clear, manufactured by Texas Instruments. It belongs to the FCT logic series and features CMOS outputs with TTL-compatible inputs. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports a propagation delay of 5.8 ns. It provides high drive capability with low-level output currents up to 64 mA and high-level output currents up to -32 mA. The component is housed in a SOIC-20 package and is designed for surface-mount installation. It functions as a single circuit register with non-inverting polarity.

Feature Summary

• Octal D-type flip-flop architecture with integrated clear function
• CMOS outputs compatible with TTL input levels
• High drive current capability for robust signal transmission
• Surface-mount SOIC-20 packaging for automated assembly

Applications

• Parallel data storage in digital systems
• Interface circuits between different logic families
• Data bus holding applications
• Sequential logic control circuits

Procurement Notes

Verify the specific suffix 'TSOCT' against official Texas Instruments documentation to confirm tape-and-reel packaging and moisture sensitivity classification. Ensure the part number matches the exact manufacturer designation to avoid confusion with similar variants like CD74FCT273 or CY74FCT273CTSOC. Cross-reference the datasheet for RoHS compliance status and recommended soldering profiles prior to procurement.

Selection Notes

Select this component when an octal D-type flip-flop with a clear function is required in a design utilizing 5V FCT logic. Consider the 5.8 ns propagation delay and 64 mA sink current for timing and load requirements. Verify that the SOIC-20 package fits the PCB layout constraints and that the operating temperature range meets the application environment specifications.

Part Context

This part is a member of the Texas Instruments FCT (Fast CMOS Technology) family, which bridges the performance gap between standard CMOS and ECL logic. The CY74FCT273 variant specifically provides eight independent D-type flip-flops with a common clear input. It is designed for high-speed applications requiring low power consumption and fast switching speeds compared to older logic families.

Replacement Considerations

Public confirmed substitute part numbers include CD74FCT273ME4 and CY74FCT273CTSOC. Verify pinout compatibility and electrical parameters before substitution.