ATMEGA32U4 QFN-44-NOPAD package pin spacing

Question

Hello I am very new to Eagle and I cannot find out how to get the pin spacing on an ATMEGA32U4-MU ATMEGA32U4-MU QFN-44-NOPAD package.from the SparkFun-DigitalIC library I realise it is more than likely on the datasheet but I may as well be reading Chinese at this stage I need it so I can adjust my grid size on the board and get the pads lining up perfectly. I would appreciate some help thanks Pedro

shabaz · Accepted Answer

It may look like Chinese but you do need to examine it and get over the hurdle once and for all. You're looking for a mechanical layout, often at the end of the datasheet, but sometimes in a separate document.

For QFN it could be 0.5mm (this is popular), but other values are possible.

Also for QFN, are you aware it is quite difficult to hand-solder without quite some practice? Is it really the package you want, or did you intend QFP or DIP?