CY74FCT574ATSOCT

Overview

The CY74FCT574ATSOCT is an octal edge-triggered D-type flip-flop with 3-state outputs manufactured by Texas Instruments. It operates within a supply voltage range of 4.75 V to 5.25 V and features TTL-compatible inputs. The device provides high-output drive capabilities, delivering -32 mA at high levels and 64 mA at low levels. Propagation delay is specified at 10 ns. It is housed in a 20-SOIC package and supports surface-mount installation across an operating temperature range of -40°C to +85°C.

Feature Summary

• Octal configuration providing eight independent D-type flip-flops with positive-edge triggering for data storage.
• Three-state output architecture allowing multiple devices to share bus lines without interference.
• TTL input compatibility ensures seamless integration with standard logic families.
• High-current output drive capability supports direct interfacing with heavy loads.

Applications

• Parallel-to-serial data conversion circuits
• Buffering and latching operations in digital systems
• I/O port expansion for microprocessor-based designs

Procurement Notes

Verify the manufacturer designation on the datasheet, as this component is produced by Texas Instruments despite the model prefix often associated with Cypress Semiconductor. Confirm the specific suffix 'T' indicates tube packaging when reviewing ordering information. Ensure the SOIC-20 package dimensions match the target PCB footprint requirements before finalizing procurement decisions.

Selection Notes

Select this component for applications requiring high-speed data storage with strong drive capabilities. The FCT series offers superior speed compared to standard 74-series logic while maintaining CMOS power efficiency. Consider the 10 ns propagation delay and current ratings to ensure signal integrity and load handling meet system specifications.

Part Context

This part belongs to the Fast CMOS (FCT) logic family, designed to bridge the performance gap between bipolar and CMOS technologies. It provides high switching speeds comparable to Schottky TTL but with lower power consumption typical of CMOS devices. The octal flip-flop configuration is a standard building block for complex digital logic designs requiring parallel data retention.

Replacement Considerations

Public confirmed substitute part numbers include CY74FCT574ATSOC and CY74FCT574TSOC. These variants maintain functional equivalence within the same FCT family line.