74AHCT14PW,118

Overview

The Nexperia 74AHCT14PW,118 is a hex inverting Schmitt trigger integrated circuit belonging to the AHCT logic family. It operates within a supply voltage range of 4.5 V to 5.5 V and utilizes TTL input switching levels. The device features six independent inverters with Schmitt-trigger inputs, providing high noise immunity and balanced propagation delays. It is housed in a TSSOP14 plastic thin shrink small outline package (SOT402-1) and supports an ambient operating temperature range from -40 °C to +125 °C.

Feature Summary

• Hex inverter configuration with Schmitt-trigger inputs for signal conditioning
• TTL-compatible input levels ensuring interoperability with standard logic families
• Overvoltage tolerant inputs allowing operation in mixed voltage environments
• High noise immunity and low power dissipation characteristics

Applications

• Wave and pulse shapers
• Astable multivibrators
• Monostable multivibrators
• Translators in mixed voltage environments

Procurement Notes

Verify the specific ordering suffix matches the required package type and temperature grade. Confirm RoHS compliance status and lead times through authorized distributors. Ensure design-in documentation aligns with the latest product data sheet revision to avoid discrepancies in pinout or electrical specifications during production.

Selection Notes

Select this component when TTL-level compatibility is required alongside CMOS performance benefits. The Schmitt-trigger action makes it suitable for noisy environments or slow-rising signals. Verify that the 4.5 V to 5.5 V supply range meets system requirements, as lower voltage operation is not supported by the AHCT variant.

Part Context

This part belongs to the 74AHC/AHCT logic family, which combines the high speed of AHC technology with the input compatibility of HCT devices. The PW suffix indicates the TSSOP14 package, while the 118 suffix typically denotes reel packaging. It serves as a direct replacement for legacy 74HC14 or 74HCT14 equivalents in modern designs requiring improved speed and noise margins.

Replacement Considerations

Compatible substitutes include the 74AHC14PW,118 for CMOS input levels and the 74HCT14PW,118 for older HCT logic compatibility. Ensure the alternative maintains the same TSSOP14 footprint and thermal characteristics if replacing in existing layouts.

FAQ

What is the difference between the 74AHC14 and 74AHCT14 input levels?

The 74AHC14 uses CMOS input switching levels, whereas the 74AHCT14 uses TTL input switching levels, making the latter compatible with standard TTL logic outputs.

Are the inputs overvoltage tolerant?

Yes, the inputs are overvoltage tolerant up to 5.5 V, allowing the device to be used as a translator in mixed voltage environments.