I'm designing a board that will later need an Apple Authentication (iAP) chip on it and I would like to reserve space for it however I cannot find any dimensions. I have scoured the Internet but to no avail. I don't want to spend the money yet to join the Apple Developers Program so I'm looking for anyone who may have one that would share it's dimensions or better yet have a schematic.
I got the first page from Bing Images and translated the first page, looked at the location on the pic, then went to the site below to get the board dimensions. From there I figured out that the size is approximately 4.2 x 4mm.