SN74AHCT14QDRQ1 – TEXAS INSTRUMENTS

The SN74AHCT14QDRQ1 is a high-speed hex Schmitt-trigger inverter in a 16-pin QSOP package. It’s a member of the 74AHCT logic family, offering 5V-tolerant inputs while operating from a 2V to 5.5V supply voltage range (VCC). This wide operating voltage makes it highly versatile across different power domains. Each of the six inverters features Schmitt-trigger input characteristics, providing noise immunity superior to standard inverters, crucial in noisy environments or when dealing with slowly rising/falling signals. The device boasts a typical propagation delay of 4.7ns at VCC=3.3V and 5.8ns at VCC=5V, making it suitable for high-frequency applications. The QDR (Quad Data Rate) designation indicates its suitability for high-speed data transmission, though not directly related to the individual inverter function._x000D_
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Common applications include signal conditioning, noise filtering in digital circuits, and creating robust level shifters within mixed-voltage systems. The low power consumption (typical Icc < 1mA at VCC=3.3V) and wide operating voltage range make it ideal for battery-powered or low-power portable devices. Its inherent noise immunity and high speed offer a significant advantage over standard CMOS inverters where signal integrity is paramount, minimizing false triggering and improving overall system reliability. The QSOP package facilitates high-density PCB designs, further enhancing its appeal for space-constrained applications.