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A logic output can sink a maximum LOW-state current of 16 mA. Each connected input requires 1.6 mA when LOW. Ignoring other limits, the LOW-state fan-out is?

  • A5
  • B8
  • C10
  • D16
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Correct Answer: C. 10
Explanation: Fan-out based on LOW-state current is IOL(max)/IIL = 16/1.6 = 10 loads.
Reference: Standard digital electronics: fan-out calculation
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