SN74LS123DRG4

Overview

The SN74LS123DRG4 is a dual retriggerable monostable multivibrator from the Texas Instruments 74LS logic series. It operates within a supply voltage range of 4.75 V to 5.25 V and features a maximum static current of 12 mA. The device provides two independent circuits in a 16-pin SOIC package with a propagation delay of 28 ns at 5 V. It supports low-level output currents up to 8 mA and high-level output currents of -0.4 mA, functioning reliably across an operating temperature range of 0°C to +70°C.

Feature Summary

• Dual retriggerable monostable multivibrator architecture
• Compatible with standard 74LS TTL logic families
• Surface-mount SOIC packaging for automated assembly

Applications

• Timing pulse generation
• Frequency division
• Pulse width modulation

Procurement Notes

Verify the specific suffix 'G4' corresponds to lead-free and RoHS compliance requirements for your project. Confirm that the 74LS family meets your system's power consumption and speed constraints compared to modern alternatives. Ensure the 16-SOIC footprint matches your PCB design guidelines before finalizing procurement orders.

Selection Notes

Select this component when dual independent timing channels are required within a standard TTL-compatible environment. The 74LS series offers a balance of speed and power dissipation suitable for general-purpose digital applications. Consider the 16-SOIC package size if space efficiency is necessary while maintaining through-hole compatible pin spacing standards.

Part Context

This part belongs to the broader SN74(LS)122/23/30 family of monostable multivibrators manufactured by Texas Instruments. The 'LS' designation indicates Low-power Schottky technology, which improves switching speed over standard 74-series parts while reducing power consumption. The 'G4' suffix typically denotes environmental compliance attributes such as lead-free composition.

Replacement Considerations

SN74LS123DR is a manufacturer-recommended alternative offering identical functional specifications.