74FCT574CTSOG

Overview

The IDT 74FCT574CTSOG is an octal edge-triggered D-type flip-flop with three-state outputs, belonging to the FCT logic series. It operates within a supply voltage range of 4.75 V to 5.25 V and features TTL-compatible inputs. The device provides high drive capability with low-level output currents up to 64 mA and high-level output currents up to -32 mA. It exhibits a propagation delay of 5.2 ns and functions reliably across an industrial temperature range from -40 °C to +85 °C. The component is housed in a 20-pin SOIC package.

Feature Summary

• Octal configuration providing eight independent D-type storage elements within a single integrated circuit
• Three-state output architecture enabling direct bus interfacing and system-wide data line sharing
• TTL-compatible input thresholds allowing seamless integration with legacy digital logic families
• High-drive output stage capable of sourcing and sinking substantial current for reliable signal transmission

Applications

• Parallel data buffering and temporary storage in high-speed digital systems
• Interface bridging between microprocessors and peripheral memory modules
• Register file implementation in complex logic designs requiring wide data paths
• Clock distribution networks utilizing edge-triggered synchronization mechanisms

Procurement Notes

Verify the specific suffix designation against manufacturer documentation to confirm package type and temperature grade. Ensure compatibility with existing PCB footprints and soldering profiles. Confirm RoHS compliance status through official datasheets prior to procurement. Validate that the supplier source aligns with authorized distribution channels to prevent counterfeit components.

Selection Notes

Select this component when designing systems requiring wide parallel data latching with minimal propagation delay. Consider the high drive strength for driving multiple loads or long traces without external buffers. Evaluate the operating temperature range against environmental constraints. Compare pinout compatibility with alternative manufacturers if cross-sourcing is necessary for supply chain resilience.

Part Context

This part belongs to the 74FCT family of high-speed CMOS logic devices, originally developed by Integrated Device Technology. The family bridges the performance gap between standard TTL and advanced CMOS technologies. Texas Instruments acquired IDT's logic business, influencing subsequent manufacturing and documentation standards for these components.

Replacement Considerations

Public confirmed substitute part numbers include CY74FCT574CTQCT manufactured by Texas Instruments.