625-Ball Plastic Ball Grid Array [PBGA] (B-625) a Dimensions shown in millimeters 27.20 27.00 26.80 24 22 20 18 16 14 12 10 8 6 4 2 25 23 21 19 17 15 13 11 9 7 5 3 1 A B C D E F G H J K L M N P R T U V W Y AA AB AC AD AE 1.50 BSC SQ 24.20 24.00 23.80 27.20 27.00 26.80 24.00 BSC SQ 1.00 BSC SQ BALL PITCH 1.50 BSC SQ 24.20 24.00 23.80 27.20 27.00 SQ 26.80 TOP VIEW BOTTOM VIEW DETAIL A NOTES: 1. ALL DIMENSIONS ARE IN MILLIMETERS. 2. THE ACTUAL POSITION OF THE BALL GRID IS WITHIN 0.25mm OF ITS IDEAL POSITION RELATIVE TO THE PACKAGE EDGES. 3. THE ACTUAL POSITION OF EACH BALL IS WITHIN 0.10mm OF ITS IDEAL POSITION RELATIVE TO THE BALL GRID. 4. CENTER DIMENSIONS ARE NOMINAL. 5. THIS PACKAGE COMPLIES WITH THE JEDEC MS-034 SPECIFICATION, BUT USES TIGHTER TOLERANCES THAN THE MAXIMUMS ALLOWED IN THAT SPECIFICATION. REV. A 1.25 MAX 0.65 0.55 0.45 2.50 MAX ñ43ñ SEATING PLANE BALL DIAMETER 0.70 0.60 0.50 DETAIL A 0.40 MIN 0.20 MAX