MC74VHCT574ADWG

Flip Flops Overview

The MC74VHCT574ADWG is an octal D-type flip-flop with 3-state outputs manufactured by onsemi. It belongs to the VHCT logic series, designed for high-speed CMOS applications with TTL-compatible inputs. The device operates within a supply voltage range of 4.5 V to 5.5 V and features a propagation delay of 9 ns at 5 V. It provides 8 mA source and sink current capabilities. The component is housed in a 20-lead SOIC Wide (SOIC-WB) package and supports surface-mount installation.

Flip Flops Feature Summary

• TTL-compatible input thresholds enable direct interfacing with TTL logic systems without level shifting requirements.
• High-speed performance characterized by low propagation delay suitable for demanding digital timing applications.
• Three-state output architecture allows direct connection to bus structures with controlled drive capability.

Flip Flops Applications

• Registering data in high-speed digital processing circuits
• Buffering signals between TTL and CMOS domains
• Implementing parallel-to-serial or serial-to-parallel data conversion stages

Flip Flops Procurement Notes

Verify the specific suffix ADWG corresponds to the SOIC-WB package configuration required for your PCB layout. Confirm that the design accommodates the 4.5 V to 5.5 V operating voltage range. Ensure thermal management aligns with the specified junction temperature limits during operation.

Flip Flops Selection Notes

Select this component when TTL compatibility is mandatory alongside high-speed switching characteristics. The VHCT series offers faster performance than standard HCT variants while maintaining noise immunity. Consider the 3-state output feature if bus sharing is required in the system architecture.

Flip Flops Part Context

This part is part of onsemi's VHCT logic family, which bridges the gap between standard HC/HCT speeds and higher performance needs. It shares pinout compatibility with industry-standard octal D-type flip-flops, facilitating drop-in replacements in existing designs requiring improved speed margins.

Flip Flops Replacement Considerations

MC74VHCT574A is the base device identifier. Verify package equivalence if substituting with other manufacturers' VHCT octal flip-flops. Ensure electrical parameters such as propagation delay and output current meet the original design specifications.