DM74LS279M

Latches Overview

The DM74LS279M is a quad Set-Reset latch manufactured by Fairchild Semiconductor. It features four independent latches with active-low inputs, packaged in a 16-SOIC format. The device operates within a supply voltage range of 4.75V to 5.25V and supports standard output types. Designed for surface mount installation, it functions reliably across an operating temperature range of -55°C to +125°C.

Latches Feature Summary

• Contains four individual and independent Set-Reset latches
• Features active-low inputs for both Set and Reset functions
• Voltage level triggered operation unaffected by input transition times

Latches Applications

• Data storage circuits requiring simple set-reset functionality
• Memory buffer applications in digital systems
• Control logic interfaces for state retention

Latches Procurement Notes

Verify the specific suffix 'M' confirms the SOIC package and commercial/industrial grade specifications. Confirm RoHS compliance status as manufacturing practices evolve. Ensure the active-low input polarity matches the system design requirements before integration into the final assembly.

Latches Selection Notes

Select this component when four independent latches are required in a compact surface-mount package. The active-low input configuration simplifies interface logic for certain control schemes. Verify that the standard output drive capability meets the load requirements of the downstream circuitry.

Latches Part Context

This part belongs to the 74LS series of logic integrated circuits, known for low-power Schottky performance. The DM prefix typically denotes a specific packaging or processing variant from Fairchild. It serves as a fundamental building block for sequential logic designs requiring basic memory elements.

Latches Replacement Considerations

The 54LS279 is the military/aerospace equivalent offering extended temperature ranges. Other 74LS279 variants from different manufacturers may serve as functional substitutes if pinouts and electrical characteristics align.