You can find the mechanical package drawing in our Packaging Diagrams datasheet: https://www.latticesemi.com/view_document?document_id=213 The package view with the pins in your design from the Lattice Diamond Project Navigator's main menu choose: ...
For the pinout information of automotive parts, you may check FPGA-DS-02013, link: http://www.latticesemi.com/view_document?document_id=51753 They are of the same pinout information for LIF variants which is described in FPGA-DS-02007, link: ...
You can find an example page 7 of the PCB Layout Recommendation for BGA Packages (FPGA-TN-02024) document. The example given has blind vias while the other 3 examples (which is found on pages 16, 17 and 47) are stacked vias. However, it also depends ...
Lattice provides device specifications that help PCB designers in creating custom board designs. These device specifications are cataloged in the Package Diagrams pdf file. The Package Diagrams document provides information on physical dimensions and ...