74ACTQ374SC

Flip Flops Overview

The onsemi 74ACTQ374SC is an octal D-type flip-flop utilizing FACT Quiet Series technology for superior noise performance. It features positive edge-triggered clocking and three-state outputs suitable for bus-oriented applications. The device operates within a supply voltage range of 4.5V to 5.5V, with a maximum propagation delay of 9ns at 5V and 50pF load. It supports a clock frequency up to 85 MHz, provides 24mA output drive current, and functions reliably across a temperature range of -40°C to +85°C in a 20-SOIC package.

Flip Flops Feature Summary

• FACT Quiet Series technology ensures guaranteed simultaneous switching noise levels and improved dynamic threshold performance.
• Positive edge-triggered clock input is buffered for all flip-flops to enhance signal integrity.
• Three-state outputs facilitate direct connection to bus lines or memory address registers.
• Split ground bus design combined with GTO output control reduces ICC and IOZ by 50%.

Flip Flops Applications

• Bus-oriented data storage systems
• Memory address register buffering
• High-speed digital logic circuits requiring low noise
• Octal data latch applications

Flip Flops Procurement Notes

Verify component authenticity through authorized distributors due to potential counterfeit risks. Confirm RoHS compliance status as the part may be obsolete. Check datasheet revisions for specific electrical characteristics matching system requirements. Ensure proper ESD handling during assembly. Validate pin compatibility if substituting with similar family members.

Flip Flops Selection Notes

Select this component when low simultaneous switching noise is critical for system stability. The ACTQ series offers faster propagation delays compared to standard AC/ACT variants. Consider the 20-SOIC package size for surface mount constraints. Verify that the 85 MHz clock limit meets application timing needs. Ensure power supply decoupling aligns with the split ground bus architecture benefits.

Flip Flops Part Context

This part belongs to the 74ACTQ family, which extends the standard 74ACT logic line with enhanced quiet series features. It shares functional similarities with the 74ACT374 but includes optimized noise reduction technologies. The SC suffix indicates a specific tape-and-reel packaging format within the SOIC-20 footprint. It is designed for high-performance digital applications where signal integrity is paramount.

Flip Flops Replacement Considerations

Direct substitutes include MC74ACT374DWG from onsemi and CD74ACT374M96 from Texas Instruments. These alternatives maintain pin compatibility and logical function while potentially differing in packaging or specific noise specifications. Verify operating temperature ranges and supply voltage tolerances before substitution.