74-Ball Chip Scale Package Ball Grid Array [CSP_BGA] (BC-74) Dimensions shown in millimeters A1 CORNER INDEX AREA 12.00 BSC SQ 11 10 9 8 7 6 5 4 3 2 1 BALL A1 INDICATOR TOP VIEW 10.00 BSC SQ BOTTOM VIEW 1.00 BSC 1.70 MAX A B C D E F G H J K L DETAIL A DETAIL A 0.30 MIN 0.70 0.60 0.50 BALL DIAMETER COMPLIANT TO JEDEC STANDARDS MO-192-ABD-1 1.10 0.25 0.20 COPLANARITY SEATING PLANE 061306-A a