a 100-Pin Ceramic Pin Grid Array [PGA] (G-100) Dimensions shown in inches and (millimeters) 1.212 (30.78) 1.200 (30.48) SQ 1.188 (30.18) 1.342 (34.09) 1.320 (33.53) SQ 1.308 (33.22) 1.012 (25.70) 1.000 (25.40) SQ 0.988 (25.10) A1 CORNER INDEX AREA INDEX PIN ONLY HEAT SLUG TOP VIEW BOTTOM VIEW (PINS DOWN) N M L K J H G F E D C B A 0.169 (4.29) 0.123 (3.12) SEATING PLANE 0.050 (1.27) TYP 0.020 (0.51) 0.018 (0.46) 0.016 (0.41) 0.100 (2.54) TYP 0.050 (1.27) TYP 0.180 (4.57) TYP CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. 1 2 3 4 5 6 7 8 9 10 11 12 13