a 80-Ball Chip Scale Package Ball Grid Array [CSP_BGA] (BC-80) Dimensions shown in millimeters A1 CORNER INDEX AREA 9.10 9.00 SQ 8.90 BALL A1 INDICATOR TOP VIEW 10 9 8 7 6 5 4 3 2 1 A B C 7.20 BSC SQ D E 0.80 BSC F G H J K 1.40 MAX 0.90 REF BOTTOM VIEW DETAIL A 0.25 MIN 0.55 SEATING 0.50 PLANE 0.45 BALL DIAMETER COMPLIANT WITH JEDEC STANDARDS MO-205-AB. 0.65 MIN 0.12 MAX COPLANARITY 012006-0 DETAIL A