80-Ball Chip Scale Package Ball Grid Array [CSP_BGA] (BC-80-2) Dimensions shown in millimeters A1 CORNER INDEX AREA 10.00 BSC SQ 2.50 SQ 12 11 10 9 8 7 6 5 4 3 2 1 BALL A1 PAD CORNER TOP VIEW 8.80 BSC SQ 0.80 BSC 0.60 REF 1.50 1.36 1.21 BOTTOM VIEW A B C D E F G H J K L M DETAIL A 0.65 REF 1.11 1.01 0.91 DETAIL A 0.36 REF 0.35 NOM 0.30 MIN *0.50 0.45 0.40 BALL DIAMETER *COMPLIANT TO JEDEC STANDARDS MO-205-AC WITH THE EXCEPTION TO BALL DIAMETER. SEATING PLANE 0.12 MAX COPLANARITY 011007-A a