74VHCT573ASJX

Latches Overview

The Fairchild Semiconductor 74VHCT573ASJX is an octal D-type transparent latch featuring three-state outputs, fabricated using advanced high-speed CMOS technology with silicon gate processes. It operates within a supply voltage range of 2.0V to 3.6V and supports a maximum clock frequency of 100MHz. The device provides 8-bit data storage with latching capability controlled by a dedicated latch enable input. It is housed in a 20-pin Small Outline Package (SOP) suitable for surface mount applications.

Latches Feature Summary

• Advanced high-speed CMOS construction utilizing silicon gate technology for enhanced performance
• Octal configuration providing eight independent D-type transparent latch channels
• Three-state output architecture enabling direct bus-driven connections without external buffers

Latches Applications

• High-speed data buffering and temporary storage in digital logic circuits
• Direct interface between microprocessors and peripheral devices via system buses
• Register file implementations requiring tri-state isolation capabilities

Latches Procurement Notes

Verify the specific suffix 'SJX' against current manufacturer documentation to confirm package dimensions and tape-and-reel specifications. Confirm RoHS compliance status as legacy datasheets may not reflect recent regulatory updates. Ensure compatibility with existing PCB footprint designs before procurement.

Latches Selection Notes

Select this component when designing systems requiring 8-bit latching with tri-state bus isolation at speeds up to 100MHz. It is appropriate for low-voltage 3.3V logic families. Consider alternative packages if higher pin density or different thermal characteristics are required for the specific enclosure design.

Latches Part Context

This part belongs to the VHCT series of logic components, which bridge the performance gap between standard HC and HCT logic families. The VHCT series offers faster switching speeds while maintaining HCT-compatible input thresholds, making it suitable for mixed-voltage applications where speed is critical but noise immunity remains a priority.

Latches Replacement Considerations

The MM74HCT573WMX serves as a functional substitute within the HCT family, though it operates at a higher voltage range of 4.5V to 5.5V. Verify that the target circuit can accommodate the increased supply voltage and slightly different propagation delays associated with the HCT technology compared to VHCT.