74LVC1G123DCTTG4

Overview

The SN74LVC1G123DCTTG4 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 provides a propagation delay of approximately 18.5 ns at 1.8 V and supports output currents of ±32 mA. It is housed in an 8-LSSOP package with a maximum static current of 20 µA and functions across an industrial temperature range of -40°C to +125°C.

Feature Summary

• Retriggerable operation allows extension of the output pulse duration by subsequent trigger events before the initial pulse expires.
• Schmitt-trigger inputs on A and B channels provide hysteresis to eliminate signal jitter during slow input transitions.
• Programmable pulse width is determined by external resistor and capacitor connections, enabling flexible timing control.

Applications

• Debouncing mechanical switches or push-button interfaces
• Generating precise time delays in digital circuits
• Pulse stretching for signal synchronization

Procurement Notes

Verify the G4 suffix indicates lead-free packaging compliant with RoHS standards. Confirm the DCTT designation corresponds to the specific tape-and-reel quantity and shipping configuration required for your assembly line. Ensure the operating environment remains within the specified -40°C to +125°C thermal limits to maintain guaranteed electrical performance.

Selection Notes

Select this component when a single-channel monostable circuit is required with low power consumption and wide voltage compatibility. The LVC series offers superior speed compared to older HC families while maintaining CMOS low-power characteristics. Verify that the external RC network values align with the desired pulse width calculations provided in the official datasheet.

Part Context

This part belongs to the SN74LVC1G123 family of single monostable multivibrators. The 'G4' suffix specifically denotes environmental compliance, indicating a lead-free finish. The 'DCTT' code identifies the surface-mount 8-LSSOP package variant supplied in a reel format for automated placement.

Replacement Considerations

The SN74LVC1G123DCUR is a compatible alternative within the same product family. Both parts share identical logical functionality and pinout configurations. Verify that the specific package tolerance and reel specifications of the substitute meet your manufacturing requirements.