F2MC-16LX Do you know +B input?

Answer:

Generally to input higher voltage than Vcc of CPU to port is not guaranteed. But +12 voltage for automotive can be inputted to port directly by restricting current.
Please confirm detailed information of current restriction value and etc. for this specification with datasheet.

 

+B Input (individual corresponding)
+B input port with external resister (for current control)

 

Sample recommended circuit

 

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