In SX Microcontrollers, SX/B Compiler and SX-Key Tool, MyYz400 wrote:

(Mind you, I'm a beginner with some understanding of Micro Controllers).

I have a question.  I have read that the SX can "Source/Sink 30mA".  Now to me that means it can either provide voltage, or ground up-to 30mA (each I/O? or cumulatively for all I/Os?).  If so, what is the voltage it supplies?  Whatever the IC's power pin voltage is?  What is the resistance of a given I/O?  I assume milli-Ohm range.

But is that the only choices?  Is it possible to have a pin go open?  Just float?  I know this would be bad practice, but could be useful for one of my applications.


Also, do the I/Os have a MTBF?  I might want to do PWM, but thousands of switches per second, for possibly years seems like an I/O could go bad and fail?


Thank-you for putting up with my seemingly pointless questions.

MyYz400

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