CY74FCT273CTQCT

Overview

The CY74FCT273CTQCT 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 exhibits a propagation delay of 5.8 ns. It provides high-level output current of -32 mA and low-level output current of 64 mA. Housed in a QSOP-20 package, it supports surface mount installation and functions reliably across a temperature range of -40°C to +85°C.

Feature Summary

• Octal configuration with dedicated clear function for synchronous data storage
• TTL-compatible input structure ensuring direct interface with standard logic families
• High drive capability with specified sink and source current ratings

Applications

• Parallel-to-serial data conversion circuits
• Register files in microprocessor-based systems
• Buffering and latching applications in digital control systems

Procurement Notes

Verify component authenticity through authorized channels. Confirm RoHS compliance status via official documentation. Ensure handling procedures account for moisture sensitivity classification during storage and reflow soldering processes. Cross-reference datasheet revisions to match specific design requirements.

Selection Notes

Select this component when an octal register with active clear functionality is required. The FCT series offers speed comparable to LS logic with CMOS power consumption. Verify that the QSOP-20 package fits the PCB footprint constraints and thermal management needs of the target application environment.

Part Context

This part is part of the CY74FCT273T family, which includes various package options for the same logical function. It serves as a fundamental building block for sequential logic designs requiring eight-bit data retention. The manufacturer provides comprehensive electrical characteristics and timing diagrams in the official datasheet for circuit simulation and validation.

Replacement Considerations

Compatible substitutes include CD74FCT273E and CD74FCT273ME4. These alternatives share identical logical functionality but differ in package type and operating temperature ranges. Verify pinout compatibility and electrical specifications before implementation.