74VHCT574AM

Overview

The Fairchild Semiconductor 74VHCT574AM is an octal D-type flip-flop featuring three-state outputs, fabricated using advanced high-speed CMOS technology. It operates within a supply voltage range of 4.5 V to 5.5 V and supports surface-mount installation in SOIC-20 packages. The device exhibits a propagation delay of 10.4 ns, with output drive capabilities of -8 mA for high-level and 8 mA for low-level currents. It functions reliably across an operating temperature range from -40°C to +85°C.

Feature Summary

• Octal D-type configuration with non-inverting tri-state outputs
• Advanced high-speed CMOS fabrication for rapid signal processing
• Compatible with standard TTL input levels via VHCT series architecture

Applications

• Bus-oriented memory addressing systems
• High-speed data register storage applications
• Parallel-to-serial conversion circuits

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and specific package variants prior to acquisition. Ensure handling procedures adhere to electrostatic discharge protection standards during storage and assembly processes.

Selection Notes

Select this component when requiring eight parallel data latches with controlled bus isolation. The VHCT series ensures compatibility with 5V logic systems while offering superior switching speeds compared to standard HCT counterparts. Evaluate thermal requirements against the specified operational temperature limits.

Part Context

This part belongs to the VHCT family, bridging CMOS performance with TTL input compatibility. It serves as a critical interface element in digital systems requiring reliable data retention and high-frequency operation within standard 5-volt logic environments.

Replacement Considerations

Consult official documentation for verified substitute part numbers. Cross-reference pinouts and electrical specifications carefully before implementing any alternative components in existing designs.