SN74AHCT14QPWRQ1

Overview

The SN74AHCT14QPWRQ1 is an automotive-grade hex Schmitt-trigger inverter from Texas Instruments, part of the AHCT logic family. It features six independent inverting channels with Schmitt-trigger inputs for noise filtering and waveform shaping. The device operates within a supply voltage range of 4.5 V to 5.5 V and supports a wide operating temperature range from -40°C to +125°C. It is housed in a 14-pin TSSOP package and meets AEC-Q100 qualification standards for automotive applications.

Feature Summary

• Hex configuration providing six independent inverting channels
• Schmitt-trigger inputs ensure clean signal transitions and noise immunity
• Automotive qualification compliant with AEC-Q100 standards
• Wide operating temperature range suitable for harsh environments

Applications

• Automotive electronic control units requiring robust signal inversion
• Microcontroller input conditioning for noisy digital signals
• Pulse generation and timing circuit applications
• Oscillator circuits utilizing hysteresis for stable frequency generation

Procurement Notes

Verify the complete part number including suffixes such as G4 or Q1 to confirm specific packaging, lead-free status, and automotive grade certification. Ensure compatibility with system voltage requirements of 4.5 V to 5.5 V. Confirm package type is TSSOP-14 and check for RoHS compliance documentation prior to procurement.

Selection Notes

Select this component when high noise immunity is required for digital inputs in automotive systems. The AHCT series ensures TTL-compatible logic levels while offering CMOS performance. Consider the 14-pin TSSOP footprint for space-constrained PCB designs. Verify that the 4.5 V minimum supply voltage aligns with the target power rail.

Part Context

This device belongs to the SN74AHC/AHCT/Q family of advanced CMOS logic devices designed for automotive reliability. It complements other automotive logic components like shift registers and flip-flops by providing essential signal conditioning functions. The integration of Schmitt triggers distinguishes it from standard inverters, making it suitable for interfaces with slow-rising signals.

FAQ

What is the primary function of the Schmitt-trigger inputs?

The Schmitt-trigger inputs provide hysteresis, which filters out noise and ensures sharp, clean output transitions even when the input signal rises or falls slowly.

Is this component qualified for automotive use?

Yes, the SN74AHCT14QPWRQ1 is qualified according to AEC-Q100 standards for automotive applications.