74LVC1G123DCUTG4

Overview

The SN74LVC1G123DCUTG4 is a single retriggerable monostable multivibrator from the Texas Instruments LVC logic family. It operates within a supply voltage range of 1.65 V to 5.5 V and features Schmitt-trigger inputs for noise immunity. The device supports mixed-mode operation, allowing input voltages up to 5.5 V regardless of the VCC level. Key electrical parameters include a maximum propagation delay of 18.6 ns at 1.8 V, a maximum static current of 20 µA, and output drive capabilities of ±32 mA. It functions reliably across an extended temperature range from -40°C to +125°C.

Feature Summary

• Supports retriggerable operation with pulse durations programmable via external resistor and capacitor values.
• Features Schmitt-trigger inputs on A and B channels to handle slow input transition rates without jitter.
• Provides glitch-free power-on reset functionality on the output pin.

Applications

• Timing delays in consumer electronics
• Pulse width modulation generation
• Watchdog timer circuits

Procurement Notes

Verify the specific suffix 'G4' indicates lead-free and RoHS compliance status as per manufacturer documentation. Confirm the DCUT package variant matches the required PCB footprint. Ensure compatibility with system voltage levels before integration. Cross-reference ordering information with official Texas Instruments catalogs to avoid counterfeit components.

Selection Notes

Select this component when a compact, low-power monostable solution is required for systems operating between 1.65 V and 5.5 V. The LVC series offers superior speed compared to legacy counterparts while maintaining low standby current. Consider the DCUT package size for space-constrained designs requiring surface-mount assembly.

Part Context

This part belongs to the SN74LVC1G123 family of single monostable multivibrators. It is designed for high-speed digital applications requiring precise timing control. The device integrates Schmitt triggers to ensure clean signal processing in noisy environments, making it suitable for various logic interface applications.

Replacement Considerations

Compatible substitutes include SN74LVC1G123DCUR and SN74LVC1G123DCTT. Verify that alternative packages maintain identical pinout configurations and electrical specifications to ensure direct interchangeability without circuit redesign.