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Which figure in a datasheet would decide whether a part can drive a 50 pF load at 20 MHz on an output pin?

  • A.the output rise and fall times against load capacitance
  • B.the absolute maximum output current
  • C.the total port current limit
  • D.the input leakage current of the pin

Answer: A

Rise time into a stated load is what determines whether the waveform is still recognisable at the far end, and the datasheet gives it as a curve or a table. The current limits matter for steady loads rather than for capacitive switching.

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