74LVC1G123DCTTE4

Overview

The SN74LVC1G123DCTTE4 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 supports standard voltages including 1.8 V, 2.5 V, 3.3 V, and 5 V. The device features Schmitt-trigger inputs for noise immunity and delivers output currents of up to 32 mA in both high and low states. Propagation delay is specified at 18.6 ns. It functions reliably across an extended temperature range from -40°C to +125°C and is housed in an 8-pin SSOP package.

Feature Summary

• Retriggerable monostable operation allows pulse width extension upon subsequent triggers during the timing interval.
• Schmitt-trigger inputs provide effective filtering against slow-rising signals and electrical noise.
• Wide operating voltage range ensures compatibility with diverse low-power and standard logic systems.

Applications

• Pulse width modulation and timing generation
• Debouncing mechanical switches or relays
• Generating precise time delays in digital circuits

Procurement Notes

Verify the E4 suffix indicates lead-free composition and RoHS compliance per manufacturer standards. Confirm the DCTT designation corresponds to the SSOP-8 surface-mount package. Ensure the specific revision matches system requirements for propagation delay and current drive capabilities before finalizing procurement.

Selection Notes

Select this component when a single-channel monostable timer is required with Schmitt-trigger input noise rejection. The LVC series offers superior power efficiency compared to older logic families while maintaining robust drive strength. Verify that the external resistor and capacitor values selected can achieve the desired pulse width within the specified temperature range.

Part Context

This part belongs to the SN74LVC1G123 series of single monostable multivibrators. The LVC family is designed for low-voltage CMOS applications, offering high speed and low power consumption. The device integrates a single timing circuit capable of generating pulses from nanoseconds to seconds depending on external components.

Replacement Considerations

The SN74LVC1G123DCTR is a compatible alternative within the same series. Verify pinout compatibility and ensure the replacement maintains the required SSOP-8 package dimensions and electrical characteristics for direct substitution.