74ACTQ373PC

Latches Overview

The Fairchild Semiconductor 74ACTQ373PC is an octal transparent latch featuring three-state outputs, designed for bus-organized system applications. It operates within a supply voltage range of 4.5 V to 5.5 V and exhibits a maximum propagation delay of 6.5 ns at 5 V with a 50 pF load. The device utilizes a 20-DIP package (0.300 inch width) suitable for through-hole mounting. It supports single-ended inputs and provides differential output capabilities, functioning as a non-inverting logic element within the 74ACT series.

Latches Feature Summary

• Octal configuration providing eight independent latches for complex data storage requirements
• Three-state outputs enabling direct connection to system buses without external drivers
• Quiet Series design minimizing signal noise and electromagnetic interference during switching

Latches Applications

• Bus-oriented memory systems requiring parallel data latching
• High-speed digital control circuits utilizing bus architectures
• Data acquisition systems needing isolated storage stages

Latches Procurement Notes

Verify component authenticity due to historical manufacturer transitions between Fairchild Semiconductor and ON Semiconductor. Confirm package dimensions match the specified 20-DIP format. Check datasheet revisions for any updates regarding electrical characteristics or pin configurations before integration into final designs.

Latches Selection Notes

Select this component when eight synchronized latches with tri-state capability are required in a single package. Ensure the application voltage remains within the 4.5 V to 5.5 V range. Consider the 6.5 ns propagation delay against system timing constraints. Verify that the through-hole DIP package aligns with the PCB layout and assembly processes.

Latches Part Context

This part belongs to the 74ACT family, which combines AC speed with TTL-compatible input levels. The Quiet Series designation indicates optimized internal circuitry for reduced noise emissions. As a legacy Fairchild product, it represents standard octal latch technology widely used in industrial and computing hardware prior to modern surface-mount transitions.

Latches Replacement Considerations

Equivalent parts include the 74AC373PC and 74ACT373PC from Fairchild/ON Semiconductor. Cross-reference pinouts and electrical specifications carefully. Note that some variants may lack the specific Quiet Series noise reduction features.