CY74FCT2574TSOC

Overview

The CY74FCT2574TSOC is an octal D-type register featuring three-state outputs, manufactured by Texas Instruments. It operates within a supply voltage range of 4.75 V to 5.25 V and supports a wide operating temperature range from -40°C to +85°C. The device utilizes a 20-SOIC surface-mount package. Key electrical characteristics include a propagation delay of 10 ns, with high-level output current capability of -32 mA and low-level output current of 64 mA. It accepts TTL-compatible input levels and provides non-inverting logic functionality for eight independent channels.

Feature Summary

• Octal D-type flip-flop configuration with dedicated clock and data inputs for each bit
• Three-state outputs enable direct bus interfacing without additional buffering hardware
• TTL-compatible input thresholds ensure reliable signal recognition across standard logic families
• Integrated series damping resistors on outputs reduce signal reflections in high-speed designs

Applications

• Parallel-to-serial data conversion circuits requiring precise timing control
• High-speed buffer registers in communication interface modules
• Memory address latching systems in embedded controller architectures
• Data acquisition front-end storage for analog-to-digital converter interfaces

Procurement Notes

Verify the complete part number including suffixes such as 'A' or 'T' against official Texas Instruments documentation to confirm specific variants like damping resistor inclusion or package tolerance. Ensure procurement channels provide valid RoHS compliance certificates matching the current manufacturing specifications. Cross-reference the manufacturer date code and lot numbers with authorized distributor records to guarantee component authenticity and traceability throughout the supply chain.

Selection Notes

Select this component when designing systems requiring octal data storage with immediate bus isolation capabilities. The FCT logic family offers superior speed compared to standard LS equivalents while maintaining pin compatibility. Consider the 20-SOIC package dimensions for PCB layout constraints. Evaluate thermal performance requirements against the specified operating temperature range if deployed in industrial environments. Confirm that system voltage levels align strictly with the 5V nominal supply specification.

Part Context

This device belongs to the CY74FCT series of high-speed CMOS logic products designed by Texas Instruments. The FCT line bridges the performance gap between older transistor-transistor logic and modern CMOS technologies. The 2574 variant specifically addresses applications needing parallel data retention with controlled output impedance. It serves as a critical building block in digital signal processing chains where data integrity and timing precision are paramount for system stability.

Replacement Considerations

The CY74FCT2574ATSOC is a documented substitute offering similar functional characteristics with potential variations in damping resistor implementation. Verify pinout compatibility and electrical parameters before substitution. Other FCT series registers may serve as alternatives if pin configurations differ. Always consult the latest datasheets to ensure mechanical and electrical equivalence for seamless integration into existing designs.