For the most common configuration (single inverter, feedback resistor + capacitor to input):
When power is applied, the capacitor is empty (0V). The Schmitt trigger sees a "Low" input and outputs "High" (~5V). 74hc14 oscillator calculator
r = 47e3 # 47k c = 10e-9 # 10nF print(f"hc14_osc_freq(r, c):.1f Hz") # ~967 Hz For the most common configuration (single inverter, feedback