I am designing my very first PCB and there are a few things on the package drawing of my microcontroller that are unclear to me.
- Why are the sizes expressed in fractions? e.g.: 0,23/0,13 or 0,75/0,45. What does each element stand for
- What do TYP and SQ stand for?
side question related to the previous one: I am looking for the length of a
is it calculated by: (16,10-12,40)/2 or (15,90-12,40)/2?