When choosing an IC, the "HC" (High-speed CMOS) and "LS" (Low-power Schottky) versions have different performance traits: #1106 74HC14 Oscillator

) connected to it. While theoretical physics provides complex exponential equations, the most common empirical formula for a quick calculation is:

Here’s a concise review of tools (typically web-based or spreadsheet calculators for RC oscillators using the 74HC14 Schmitt-trigger inverter).

f≈1.2100,000×0.00001≈1.2 Hzf is approximately equal to the fraction with numerator 1.2 and denominator 100 comma 000 cross 0.00001 end-fraction is approximately equal to 1.2 Hz This results in a time period ( ) of approximately

Some assume ( V_T+ = 1.6,\textV, V_T- = 0.9,\textV ) at 5V, but actual thresholds vary by manufacturer (NXP, TI, etc.). No adjustment for different logic families (e.g., 74LS14, 74HCT14).