74HCT14DB,118

Overview

The Nexperia 74HCT14DB,118 is a hex inverting Schmitt trigger integrated circuit belonging to the HCT logic family. It contains six independent inverters with Schmitt-trigger inputs, designed for noise immunity and unlimited input rise/fall times. The device operates within a supply voltage range of 2.0 V to 6.0 V and features CMOS low power dissipation characteristics. It is housed in a 14-SSOP surface-mount package.

Feature Summary

• Hex inverting Schmitt trigger configuration providing six independent channels
• Schmitt-trigger inputs ensure high noise immunity and signal conditioning
• Supports unlimited input rise and fall times for flexible signal handling
• CMOS technology enables low power dissipation

Applications

• Signal conditioning for noisy digital environments
• Waveform shaping from slow or distorted input signals
• Pulse width modulation (PWM) generation circuits
• Oscillator circuits requiring hysteresis stability

Procurement Notes

This component is obsolete and no longer manufactured by Nexperia USA Inc. Buyers must verify availability through authorized distributors for remaining stock or seek qualified replacement parts. Ensure any substitute maintains the same pinout, logic family compatibility, and package dimensions to fit existing designs without modification.

Selection Notes

Select this part only if legacy design compatibility is required. Due to its obsolescence, new designs should utilize current equivalents from the 74HCT14 series or alternative manufacturers. Verify that the 2.0 V to 6.0 V operating range meets system requirements and that the SSOP package fits the PCB footprint constraints.

Part Context

The 74HCT14DB,118 is part of the widely used 74HCT logic family, which offers TTL-compatible inputs with CMOS outputs. This specific variant integrates Schmitt triggers into all six inverters, distinguishing it from standard inverters. It serves as a robust solution for interfaces where signal integrity is compromised by noise or slow transitions.

Replacement Considerations

• 74HCT14D,653
• 74HCT14PW,118

FAQ

What is the primary function of the Schmitt trigger inputs?

The Schmitt trigger inputs provide hysteresis, which improves noise immunity and allows the device to clean up slow-rising or noisy digital signals.

Does this IC support unlimited input rise and fall times?

Yes, the datasheet specifies that the 74HCT14DB supports unlimited input rise and fall times, making it suitable for various waveform applications.