74hc14 Oscillator Calculator | 2026 |

"Stop," Elena said. "That's for an ideal oscillator. The 74HC14 has hysteresis. The capacitor has to charge to the Upper Threshold ($V_T+$) and discharge to the Lower Threshold ($V_T-$). The standard approximation constant is roughly $0.8$, but the real constant $k$ is derived from the hysteresis ratio."

If you are using an online tool or building a spreadsheet, here is how the inputs and outputs interact. 74hc14 oscillator calculator

Here's a simple calculator: