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[SOLVED] Relation or difference between Input clamp current and Sink current

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Prakash12345

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Hi,
Please explain relation or difference between input clamp current and sink current and how it will affect micro-controller.
 

Hi,


input clamp current is for protection only.
When you try to give more than VCC to an input (for an output = high or highZ also) the protection diode becomes conductive. The flowing current is called clamp current.

****

Sink current is the current when an output is switched to LOW.
When you externally connect from IO pin a resistor or any other load against VCC then the current into the IO pin is called sink currrent.

Klaus
 
Thank you for your clear explanation.
 

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