SN74LS279ADR

Latches Overview

The SN74LS279ADR is a Texas Instruments logic component belonging to the SN74LS series. It contains four independent S-R latches with non-inverting outputs. The device operates within a supply voltage range of 4.75 V to 5.25 V and features a propagation delay of 27 ns at 5 V. It supports a low-level output current of 32 mA and a high-level output current of -400 uA. The unit functions reliably across an operating temperature range of 0°C to +70°C and is housed in a 16-pin SOIC package.

Latches Feature Summary

• Contains four independent S-R latch circuits for data storage
• Features two set inputs on select latches for flexible configuration
• Provides non-inverting outputs for direct signal interfacing

Latches Applications

• Data storage registers
• Memory buffer circuits
• Control logic state holding

Latches Procurement Notes

Verify the specific suffix 'ADR' against the manufacturer datasheet to confirm the SOIC-16 surface mount package and tape-and-reel shipping format. Ensure the ordering part number matches the exact logic family requirements, as suffixes define physical packaging and handling specifications rather than internal circuit functionality.

Latches Selection Notes

Select this component when designing systems requiring multiple independent S-R latches in a compact surface-mount footprint. Verify that the LS logic family characteristics align with the system's power consumption limits and signal speed requirements. Confirm compatibility with standard 5V logic levels and ensure the SOIC-16 package fits the available PCB real estate constraints.

Latches Part Context

This part belongs to the Texas Instruments SN74LS279A series, which provides quad S-R latches. The 'LS' designation indicates Low-power Schottky technology, offering improved speed and power efficiency compared to standard TTL. The 'ADR' suffix specifically denotes the SOIC-16 surface mount package variant intended for automated assembly processes.

Latches Replacement Considerations

Cross-reference with other SN74LS279 variants from Texas Instruments or compatible manufacturers. Verify pinout compatibility and electrical parameters before substitution.