SN74LS279AN

Latches Overview

The SN74LS279AN is a Texas Instruments logic component belonging to the LS series, featuring four independent S-R latches. It utilizes a non-inverting output configuration and operates within a supply voltage range of 4.75 V to 5.25 V. The device provides a propagation delay of 27 ns at 5 V and supports a low-level output current of 32 mA. Designed for through-hole mounting, it is housed in a standard PDIP-16 package. The operational temperature range spans from 0°C to +70°C, ensuring reliability in commercial environments.

Latches Feature Summary

• Contains four independent S-R latch circuits with dedicated set and reset inputs
• Features two set inputs on select latches for flexible input control
• Maintains stable output states when both set and reset inputs are inactive

Latches Applications

• Data storage registers in digital systems
• Memory address latching applications
• Control signal buffering and holding

Latches Procurement Notes

Verify the specific ordering suffix 'AN' corresponds to the PDIP-16 through-hole package variant. Confirm RoHS compliance status via the manufacturer's official documentation before integration. Ensure the procurement channel sources directly from authorized distributors to guarantee component authenticity and traceability.

Latches Selection Notes

Select this component for designs requiring multiple independent latching functions within a single integrated circuit. The LS series offers a balance of speed and power consumption suitable for general-purpose logic applications. Verify that the required operating temperature range aligns with the specified 0°C to +70°C limit for the intended environment.

Latches Part Context

This part belongs to the widely adopted 74xx series of logic integrated circuits. The SN74LS279A designation indicates the Advanced Low-power Schottky (LS) technology variant, which improves switching speeds compared to standard TTL while maintaining lower power dissipation. The 'A' suffix typically denotes an improved revision of the original specification.

Latches Replacement Considerations

Compatible substitutes include the SN74S279N for higher speed requirements or the SN74HC279N for CMOS compatibility. Verify pinout consistency and electrical characteristics against the original datasheet before substitution.