74VHC574M

Overview

The Fairchild Semiconductor 74VHC574M is an octal D-type flip-flop with 3-state outputs, part of the VHC series. It features a propagation delay of 5.4 ns typical at VCC = 5V and operates within a voltage range of 2V to 5.5V. The device provides high noise immunity with VNIH/VNIL of 28% VCC minimum and low power dissipation of 4µA maximum at TA = 25°C. It utilizes silicon gate CMOS technology for advanced high-speed operation while maintaining low power consumption.

Feature Summary

• Octal D-type flip-flop architecture with 3-state output capability
• Advanced high-speed CMOS technology for fast switching performance
• High noise immunity characteristics across operating voltage ranges
• Power-down protection provided on all inputs

Applications

• High-speed data storage and transfer systems
• Parallel-to-serial conversion circuits
• Bus driver applications requiring 3-state control
• Digital logic interfaces in consumer electronics

Procurement Notes

Verify the specific suffix 'M' against official Fairchild or onsemi documentation to confirm package type and tape/reel specifications. Ensure compatibility with RoHS directives if required for your application. Cross-reference the datasheet revision date to confirm current manufacturing status and availability constraints.

Selection Notes

Select this component when high-speed edge-triggered storage with 3-state outputs is required in a compact SOIC-20 package. Compare propagation delays and supply voltage requirements against HC series alternatives. Consider the 2V to 5.5V operating range for flexibility in low-voltage digital designs.

Part Context

The 74VHC574M belongs to the VHC (Very High Speed CMOS) family, offering performance comparable to Bipolar Schottky TTL with CMOS power benefits. It is functionally compatible with the 74HC374 but optimized for higher speed operations. This series is designed for demanding digital applications requiring rapid data handling.

Replacement Considerations

MC74VHC574DWR2G: onsemi equivalent in SOIC-20 package. SN74VHC574DR: Texas Instruments alternative with similar electrical characteristics. Verify pinout and electrical parameters match before substitution.