74AHCT14D/S400,118

Overview

The Nexperia 74AHCT14D/S400,118 is a hex inverter IC featuring Schmitt trigger inputs, designed for robust signal conditioning. It operates within a supply voltage range of 4.5V to 5.5V and utilizes a 14-pin SO package. The device provides six independent inverting channels with hysteresis to ensure clean transitions from noisy or slow-rising input signals. It complies with JEDEC standards and offers high noise immunity suitable for digital applications requiring reliable logic level translation.

Feature Summary

• Hex inverter configuration with Schmitt trigger inputs for enhanced noise tolerance
• Operates at standard 5V logic levels with wide supply voltage compatibility
• Provides clean output transitions from slow or noisy input waveforms

Applications

• Signal conditioning for microcontroller input lines
• Clock signal generation and shaping
• Noise filtering in digital communication interfaces

Procurement Notes

Verify the exact suffix S400 against official Nexperia documentation to confirm tape-and-reel specifications and orientation. Ensure the ordering part number matches the required package variant and manufacturing site. Cross-reference the datasheet revision date to confirm pinout and electrical characteristics remain consistent with current design requirements before finalizing procurement.

Selection Notes

Select this component when hex inversion with hysteresis is required for 5V logic systems. The Schmitt trigger feature is essential for applications involving long traces or noisy environments where signal integrity is critical. Compare propagation delay and power consumption against other 74AHCT series inverters to ensure compatibility with system timing constraints and thermal budgets.

Part Context

This component belongs to the Nexperia 74AHCT family, which combines CMOS low power dissipation with TTL-compatible input levels. The AHCT series is specifically optimized for operation at 5V, ensuring direct interface with TTL devices while maintaining the benefits of modern CMOS technology. The 74AHCT14 variant specifically adds Schmitt trigger functionality to the standard inverter function.

Replacement Considerations

Compatible substitutes include the 74AHCT14D from the same manufacturer or equivalent hex Schmitt trigger inverters from other vendors such as NXP Semiconductors or STMicroelectronics, provided they share the 14-pin SO package and 5V operating voltage.