74VHCT574ASJX

Overview

The onsemi 74VHCT574ASJX is an octal D-type flip-flop belonging to the VHCT logic family. It features eight non-inverting outputs and operates within a supply voltage range of 4.5 V to 5.5 V. The component utilizes a 20-SOIC package with a width of 5.30 mm. Key electrical specifications include a propagation delay of 10.4 ns at 5 V with a 50 pF load, a maximum operating frequency of 130 MHz, and a quiescent current of 4 µA. It supports single-ended inputs and outputs.

Feature Summary

• Octal D-type configuration with positive edge triggering
• High-speed operation up to 130 MHz
• Low power consumption characteristics
• CMOS compatible input structure

Applications

• Parallel data storage registers
• Shift register implementations
• Buffering applications in digital systems
• General-purpose memory elements

Procurement Notes

Verify the specific ordering suffix against official datasheets to ensure correct packaging and temperature grade. Confirm RoHS compliance status through manufacturer documentation. Check for moisture sensitivity levels prior to surface mount assembly. Validate pinout compatibility with existing PCB footprints. Ensure availability of updated design files from the supplier.

Selection Notes

Select this component when high-speed octal latching is required within standard 5 V CMOS environments. Consider the VHCT series for improved noise immunity compared to older HCT variants. Evaluate the 20-SOIC package dimensions for space constraints. Verify that the 10.4 ns delay meets system timing requirements. Assess thermal performance under continuous operation conditions.

Part Context

This device is part of the 74VHCT574A family of octal D-type flip-flops. It shares functional similarities with other VHCT series components but offers specific speed and power characteristics. The SOIC-20 package provides a compact solution for dense circuit board layouts. It serves as a direct replacement for legacy octal latch designs in modern digital logic applications.

Replacement Considerations

The 74VHCT574AM is a tube-packaged variant of the same logical function. The MC74HCT574ADWR2G belongs to the HCT family with slower switching speeds. Cross-reference pinouts and electrical parameters before substitution. Verify package compatibility for physical integration.