74FCT574ATSOG

Overview

The IDT 74FCT574ATSOG is an octal edge-triggered D-type flip-flop featuring three-state outputs, manufactured within the FCT logic series. It operates on a single supply voltage ranging from 4.75 V to 5.25 V and accepts TTL-compatible input levels. The device provides non-inverting data transfer triggered by the positive clock edge. It is housed in a 20-pin SOIC package with a maximum propagation delay of 6.2 ns at 50 pF load capacitance. The component supports surface mount installation and functions reliably across an industrial temperature range of -40°C to +85°C.

Feature Summary

• Octal configuration providing eight independent D-type flip-flops for parallel data storage
• Three-state output capability allowing direct bus interfacing and system line sharing
• Positive-edge triggering mechanism ensures precise synchronous data capture relative to clock signals
• TTL-compatible input thresholds facilitate seamless integration with standard digital logic families

Applications

• Parallel data buffering and temporary storage in high-speed digital systems
• Synchronous state machine implementation requiring multiple simultaneous state updates
• Bus interface circuits utilizing tri-state outputs for shared communication lines
• Register file construction in embedded processor architectures

Procurement Notes

Verify the specific suffix ATSOG against official manufacturer documentation to confirm pinout compatibility and electrical characteristics. Ensure the procurement source provides valid traceability for moisture sensitivity handling requirements. Confirm that the delivered components match the exact part number designation to avoid functional discrepancies in timing-critical designs.

Selection Notes

Select this component when designing systems requiring octal data latching with controlled bus access. The FCT series offers superior switching speeds compared to standard CMOS alternatives while maintaining TTL input compatibility. Consider the 20-lead SOIC package dimensions for PCB layout constraints and verify thermal management needs for continuous operation within the specified industrial temperature limits.

Part Context

This device belongs to the Integrated Device Technology 74FCT family, which bridges the performance gap between standard TTL and CMOS technologies. The 74FCT574 variant specifically addresses applications needing high-density octal registration. As part of the broader FCT portfolio, it shares common design principles focused on speed optimization and low power consumption for commercial and industrial electronic equipment.

Replacement Considerations

Cross-reference with Texas Instruments CY74FCT574ATQCT or Renesas 74FCT574ATSOG for potential equivalent functionality. Verify pin-to-pin compatibility and ensure electrical parameters such as propagation delay and drive current meet original design specifications before substitution.