32-Lead Ceramic Ball Grid Array [CBGA] (BC-32-3) Dimensions shown in millimeters a *A1 CORNER INDEX AREA 7.05 6.85 SQ 6.70 7 6 5 4 3 2 A A1 BALL PAD INDICATOR TOP VIEW 1 B 4.80 BSC SQ BOTTOM VIEW C D E F G 0.80 BSC (BALL PITCH) DETAIL A 3.80 MAX SEATING PLANE 0.60 0.55 0.50 BALL DIAMETER *BALL A1 IDENTIFIER IS GOLD PLATED AND CONNECTED TO THE D/A PAD INTERNALLY VIA HOLES. 3.30 MAX 2.50 MIN COPLANARITY 0.15 060506-A DETAIL A 0.60 0.25