MC74HC373AFG

Latches Overview

The MC74HC373AFG is an octal 3-state non-inverting transparent latch manufactured by onsemi. It belongs to the HC logic family and features eight D-type latches with tri-state outputs. The device operates within a supply voltage range of 2 V to 6 V. Propagation delay varies from 125 ns at 2 V to 21 ns at 6 V. Static current is typically 4 uA. Low-level output current reaches 32 mA, while high-level output current is -7.8 mA. Operating temperature spans from -55 C to +125 C. The component is housed in a 20-SOIC package.

Latches Feature Summary

• Transparent latch operation allows data to pass directly when enabled.
• Tri-state outputs facilitate direct bus connections without external buffers.
• Non-inverting polarity maintains signal direction through the latch stage.

Latches Applications

• Parallel-to-serial conversion circuits
• Bus organization systems requiring address latching
• Memory interface buffering

Latches Procurement Notes

Verify the specific suffix FG against official datasheets to confirm package dimensions and marking details. Ensure compatibility with existing PCB footprints for the 20-SOIC form factor. Confirm RoHS compliance status through manufacturer documentation before integration into regulated assemblies.

Latches Selection Notes

Select this component for designs requiring wide voltage operation and high drive capability. The HC series offers CMOS input compatibility suitable for modern digital interfaces. Consider the propagation delay specifications relative to system clock speeds to ensure timing margins are met during data capture operations.

Latches Part Context

This part is part of the standard 74HC373 octal latch family. It serves as a fundamental building block for digital logic systems needing temporary data storage or bus isolation. The device complements other logic families like LS and HCT for mixed-voltage applications.

Latches Replacement Considerations

Compatible substitutes include MM74HC373MTC and MC74HC373ADWG. Verify pinout compatibility and electrical parameters such as output current and propagation delay before substitution.