SN74LS123N-P2

Overview

The SN74LS123N-P2 is a dual retriggerable monostable multivibrator from the Texas Instruments LS logic family. It features two independent circuits in a 16-pin PDIP package. The device operates within a supply voltage range of 4.75 V to 5.25 V and supports an operating temperature range of 0°C to 70°C. Key electrical characteristics include a maximum static current of 12 mA, a minimum pulse width of 40 ns, and a propagation delay of 56 ns at 5 V with maximum load capacitance.

Feature Summary

• Retriggerable monostable operation allows for pulse width extension upon receiving subsequent trigger signals during the timing interval.
• Dual independent circuit configuration provides two separate timing channels within a single integrated circuit package.
• LS logic technology ensures compatibility with standard TTL systems while maintaining low power consumption relative to earlier generations.

Applications

• Pulse generation and shaping circuits
• Timing delays and time-base generation
• Debouncing switches or contacts

Procurement Notes

Verify that the specific suffix '-P2' corresponds to the standard SN74LS123N PDIP variant listed in official documentation. Confirm RoHS compliance status and lead finish specifications (NIPDAU) match project requirements. Ensure the ordering part number matches the active production status indicated in the Package Option Addendum.

Selection Notes

Select this component when dual independent monostable functions are required in a through-hole DIP format. The LS series offers a balance of speed and power dissipation suitable for general-purpose digital applications. Verify that the 4.75 V to 5.25 V supply voltage range aligns with the system's power distribution network.

Part Context

This device belongs to the SN54/74(LS)122/23/30 family of retriggerable monostable multivibrators. It is functionally related to the SN74LS122 but offers dual channels instead of a single channel. The SN74LS123N is the commercial grade version, distinct from the military-grade SN54LS123J which supports wider temperature ranges.

Replacement Considerations

SN74LS123D (SOIC package)

FAQ

Is the SN74LS123N retriggerable?

Yes, the datasheet explicitly identifies the SN74LS123 as a retriggerable monostable multivibrator.

What is the package type for SN74LS123N?

The 'N' suffix indicates a Plastic Dual In-Line Package (PDIP) with 16 pins.