The SN74AHC14DGVR is a hex Schmitt‑trigger inverter integrated circuit (IC) manufactured by TI
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Product Description
SN74AHC14DGVR Hex Schmitt-Trigger Inverter IC
The SN74AHC14DGVR is a hex Schmitt-trigger inverter integrated circuit manufactured by TI, designed for robust digital signal processing applications.
Key Functional Characteristics
- Schmitt-trigger input hysteresis: Distinct positive-going (VT+) and negative-going (VT−) threshold voltages provide excellent noise immunity and stable switching for slow-rising/falling or noisy input signals
- Push-pull output stage: Balanced drive capability, sourcing/sinking up to 8 mA at VCC = 5 V
- Wide supply voltage: Operates from 2 V to 5.5 V, compatible with 3.3 V and 5 V logic systems
- High speed: Typical propagation delay (tpd) of approximately 8 ns at 5 V
- Low power: Maximum quiescent current (ICC) of 20 μA
Typical Applications
The SN74AHC14DGVR is widely used for signal conditioning, noise filtering, waveform shaping, and logic inversion in digital systems. Common applications include:
- Signal Debouncing: Clean mechanical switch/button inputs by filtering contact bounce noise
- Waveform Shaping: Convert slow-ramping analog or noisy digital signals into clean, fast-edge square waves
- Oscillator Circuits: Build simple RC or crystal oscillators using the inverter's gain and hysteresis
- Logic Level Inversion: Invert digital signals (clock, control, or data lines) while improving signal integrity
- Sensor Signal Conditioning: Stabilize and clean slow or noisy outputs from analog sensors before digital processing
- Clock/Control Signal Buffering: Drive multiple loads or long traces with 8-mA output drive capability
- Noise Rejection: Improve system robustness in industrial or high-noise environments
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