304-Ball Ball Grid Array, Thermally Enhanced [BGA_ED] (BP-304) Dimensions shown in millimeters a A1 CORNER INDEX AREA 31.00 BSC SQ 4 2 22 20 18 16 14 12 10 8 6 23 21 19 17 15 13 11 9 3 1 7 5 A B C D E F G H J K L M N P R T U V W Y AA AB AC BALL A1 INDICATOR 27.94 BSC SQ TOP VIEW BOTTOM VIEW 1.27 BSC DETAIL A DETAIL A *1.765 MAX 1.07 0.99 0.92 0.70 0.63 0.56 0.10 MIN *COMPLIANT TO JEDEC STANDARDS MO-192-BAN-2 WITH THE EXCEPTION TO PACKAGE HEIGHT. COPLANARITY 0.20 SEATING PLANE 022206-A 0.25 MIN (4 ) 0.90 0.75 0.60 BALL DIAMETER