CY74FCT273ATSOC

Overview

The CY74FCT273ATSOC is an octal D-type flip-flop with clear, manufactured by Texas Instruments. It belongs to the FCT logic series and features a SOIC-20 surface-mount package. The device operates within a supply voltage range of 4.75 V to 5.25 V. Key electrical parameters include a propagation delay of 5.8 ns, high-level output current of -32 mA, and low-level output current of 64 mA. It supports TTL inputs and CMOS outputs with non-inverting polarity. The component functions as a single circuit register and operates across a temperature range of -40°C to +85°C.

Feature Summary

• Octal D-type flip-flop configuration with integrated clear function
• Fast switching performance with 5.8 ns propagation delay
• High drive capability supporting -32 mA source and 64 mA sink currents
• Compatible with TTL input levels and CMOS output standards

Applications

• Parallel-to-serial data conversion circuits
• Register file storage in digital systems
• Data latch applications for bus isolation
• Timing synchronization in clocked logic designs

Procurement Notes

Verify the specific suffix 'AT' against official Texas Instruments documentation to confirm the exact temperature grade and package variant. Ensure compatibility with existing PCB footprints for the SOIC-20 form factor. Cross-reference the manufacturer part number with authorized distributor catalogs to validate authenticity and current production status before finalizing procurement orders.

Selection Notes

Select this component when an octal register with a global clear function is required. The FCT series offers superior speed compared to standard 74LS equivalents. Consider the SOIC-20 package for surface-mount assembly constraints. Verify that the system voltage remains strictly within the 4.75 V to 5.25 V range to ensure reliable operation and prevent damage to the internal circuitry.

Part Context

This part is a member of the Texas Instruments CY74FCT273T family. It serves as a high-speed octal D-type flip-flop with clear. The FCT technology combines BiCMOS speed with CMOS power efficiency. It is designed for demanding digital logic applications requiring fast data latching and high drive strength in a compact surface-mount package.

Replacement Considerations

Public confirmed substitutes include CY74FCT273ATQCT (SSOP-20) and CD74FCT273E (PDIP-20). Verify pinout compatibility and package dimensions before substitution. Ensure the alternative device meets the same electrical specifications and operating temperature requirements.