256-Ball Chip Scale Package Ball Grid Array [CSP_BGA] (BC-256-4) Dimensions shown in millimeters a 15.00 BSC SQ 17.00 BSC SQ A1 BALL PAD CORNER 1.00 BSC BALL PITCH A1 BALL PAD CORNER A B C D E F G H J K L M N P R T TOP VIEW 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 BOTTOM VIEW SIDE VIEW DETAIL A 0.20 MAX COPLANARITY *NOTES 1. COMPLIES WITH JEDEC REGISTERED OUTLINE MO-192-AAF-1, WITH EXCEPTION TO PACKAGE HEIGHT. 2. MINIMUM BALL HEIGHT 0.45 0.45 MIN 0.70 0.60 0.50 BALL DIAMETER DETAIL A SEATING PLANE 060507-A 1.90* 1.76 1.61