74VHCT374AN

Overview

The Fairchild Semiconductor 74VHCT374AN is an octal D-type flip-flop featuring three-state outputs, designed for high-speed digital applications. It operates within a voltage range of 2.0 V to 5.5 V and supports clock frequencies up to 75 MHz at nominal supply. The device utilizes VHCT CMOS technology to ensure TTL-compatible input levels while maintaining low power consumption. Packaged in a 20-pin DIP format, it provides eight independent data storage elements with positive edge triggering for reliable bus interfacing.

Feature Summary

• Octal D-type flip-flop architecture with three-state output capability
• TTL-compatible input thresholds for direct interface with standard logic families
• Positive edge-triggered data transfer mechanism
• Low power dissipation characteristics inherent to CMOS fabrication

Applications

• Bus-oriented system data storage
• High-speed digital signal processing interfaces
• Parallel-to-serial conversion circuits
• Memory address latching applications

Procurement Notes

Verify the package type matches project requirements, as the model suffix 'AN' typically denotes a through-hole DIP configuration. Confirm manufacturer origin, as Fairchild Semiconductor assets were acquired by ON Semiconductor; datasheets may reflect either branding. Ensure RoHS compliance status aligns with current environmental regulations for the specific production batch.

Selection Notes

Select this component when TTL-compatible inputs are required alongside high-speed CMOS performance. The VHCT series bridges the gap between standard HC logic speed and HCT logic compatibility. Consider the 20-pin DIP package for prototyping or legacy board designs requiring through-hole mounting rather than surface-mount alternatives.

Part Context

This part belongs to the 74VHCT family, which combines the speed of advanced CMOS processes with the noise immunity and input compatibility of TTL standards. It serves as a high-performance alternative to older bipolar logic families, offering improved switching speeds and reduced power consumption while maintaining pin-out compatibility with industry-standard octal latch designs.

Replacement Considerations

Equivalent parts include SN74VHCT374N (Texas Instruments) and MC74VHCT374D (ON Semiconductor). Verify that replacement packages match the original footprint and that electrical specifications remain identical for seamless integration.