SN74LS123NSRG4

Overview

The SN74LS123NSRG4 is a dual monostable multivibrator from the Texas Instruments LS logic series, housed in a 16-pin SOIC package. It 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. The device features 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. Output capabilities include a maximum low-level output current of 8 mA and a maximum high-level output current of -0.4 mA.

Feature Summary

• Dual independent monostable multivibrator circuits integrated into a single package
• DC-triggered operation allowing for direct level input control
• Internal timing resistor integration simplifies external component requirements

Applications

• Pulse generation and timing circuit design
• Debouncing mechanical switches
• Frequency division applications

Procurement Notes

Verify the specific suffix 'NSRG4' against official Texas Instruments documentation to confirm the tape-and-reel packaging configuration and RoHS compliance status. Ensure the ordering part number matches the exact package style and environmental specifications required for your assembly process before finalizing procurement.

Selection Notes

Select this component when dual monostable functionality is required within the standard LS logic family constraints. Confirm that the 4.75 V to 5.25 V supply voltage range aligns with your system power rails. Verify that the 0°C to +70°C commercial temperature range meets your operational environment requirements.

Part Context

This part belongs to the SN74(LS)122/23/30 series, which includes various monostable multivibrators. The SN74LS123 variant specifically provides two independent circuits per package, distinguishing it from single-circuit counterparts like the SN74LS122. It is designed for general-purpose timing applications requiring reliable DC triggering.

Replacement Considerations

Compatible substitutes include SN74LS123DR, SN74LS123DRE4, and SN74LS123DRG4. These variants share identical logical functions and pinouts but may differ in packaging format or manufacturer suffixes.