Graham Pratt

908JK3 programmer - unused MCU pins floating or not?

Discussion created by Graham Pratt on Aug 2, 2009
Latest reply on Aug 10, 2009 by ikauf ikauf

Just putting together a simple programmer board for a '908JK3. The schematic in the

data book doesn't show what to do with the MCU pins that are not used for programming.

Should they be left floating or grounded? I strongly suspect grounded but things are not

always obvious.