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SWITCHING CHARACTERISTICS
Capacitor
Propagation Delay 𝝉PHL, 𝝉PLH
The dynamic performance of a logic-circuit family is characterized by the propagation delay of its basic inverter. The inverter propagation delay (𝝉P) is defined as the average of these two quantities:
𝝉PHL low-to-high propagation delay
𝝉PLH high-to-low propagation delay
The shorter the propagation delay, the higher the speed at which the logic-circuit family can be operated.
Parasitic Capacitance
Voltage
Current
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