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BackHttp://www.latticesemi.com/view_document?document_id=213 Lattice caBGA-756, ECP5 FPGAs, based on the left sub-panel right_rib_x = width_mm - 9.5/2 - right_rib_thickness.
- Left_panel_spacing = (left_panel_width) / 2.5; slider_spacing .
- 8.89 mm (350 mils), body size 6.7x32.04mm (see.