SN74LS123NE4

Overview

The SN74LS123NE4 is a dual retriggerable monostable multivibrator from the Texas Instruments SN74LS series. It operates within a supply voltage range of 4.75 V to 5.25 V and supports a maximum static current of 12 mA. The device provides two independent circuits in a 16-pin PDIP package, with a propagation delay of 56 ns at 5 V. It features an 8 mA low-level output current and -0.4 mA high-level output current. Operating temperatures range from 0°C to +70°C.

Feature Summary

• Dual retriggerable monostable multivibrator architecture
• Compatible with standard TTL logic families
• Capable of pulse width extension and timing applications

Applications

• Timing delays
• Pulse generation
• Frequency division

Procurement Notes

Verify that the component matches the specific SN74LS123NE4 designation, as suffixes indicate packaging variations such as tube quantities or lead finishes. Confirm RoHS compliance status and ensure the supplier provides traceability documentation for the PDIP-16 package type. Cross-reference the manufacturer's latest datasheet to validate active production status and environmental certifications before finalizing procurement orders.

Selection Notes

Select this component when dual independent monostable circuits are required within a single package. The LS logic family offers lower power consumption compared to standard TTL variants while maintaining compatible switching speeds. Ensure the application environment remains within the specified 0°C to +70°C temperature range and utilizes a 5 V nominal supply voltage for optimal performance.

Part Context

This part belongs to the SN74LS123 family of retriggerable monostable multivibrators manufactured by Texas Instruments. It shares functional characteristics with other members like the SN74LS122 but differs in pinout configuration. The NE4 suffix denotes a lead-free variant packaged in a standard plastic dual in-line format suitable for through-hole mounting on printed circuit boards.

Replacement Considerations

SN74LS123N