74VHCT374AMTCX

Overview

The Fairchild Semiconductor 74VHCT374AMTCX is an octal D-type flip-flop with 3-STATE outputs, belonging to the VHCT logic series. It utilizes CMOS technology and features a TSSOP-20 package with 20 pins. The device operates at a maximum frequency of 75 MHz under nominal supply voltage conditions. Key electrical parameters include a load capacitance of 50 pF and a maximum output current (Iol) of 8 mA. The component is lead-free, RoHS compliant, and has a moisture sensitivity level of 1.

Feature Summary

• Octal D-type flip-flop architecture with 3-STATE outputs
• VHCT series compatibility with Bipolar Schottky TTL performance levels
• CMOS fabrication for low power dissipation
• Power down protection on all inputs

Applications

• High-speed data bus buffering
• Parallel-to-serial conversion circuits
• Register file storage elements
• Timing synchronization in digital systems

Procurement Notes

Verify that the specific part number 74VHCT374AMTCX matches the required VHCT logic family specifications rather than standard VHC or HC variants. Confirm the TSSOP-20 package dimensions align with PCB footprint requirements. Ensure compliance with RoHS and lead-free manufacturing standards as indicated in the component documentation. Check for any specific handling instructions related to the moisture sensitivity level classification during assembly processes.

Selection Notes

Select this component when TTL-compatible input thresholds are required alongside CMOS low-power advantages. The VHCT series provides noise immunity comparable to Bipolar Schottky TTL while maintaining CMOS characteristics. Consider the 3-STATE output capability for bus sharing applications. Evaluate the 75 MHz operating frequency against system timing requirements. The TSSOP-20 package offers a compact solution for surface-mount designs requiring eight parallel flip-flops.

Part Context

This component belongs to the Fairchild VHCT logic family, which bridges the gap between high-speed CMOS and TTL performance. The 74VHCT374A variant is an advanced octal flip-flop designed for applications demanding both speed and low power consumption. It is functionally compatible with other 74-series logic devices, facilitating integration into mixed-technology digital systems.

Replacement Considerations

Public confirmed substitute part numbers: MM74HCT374MTCX.