28-Lead Ceramic Leaded Chip Carrier, J-Formed Leads [JLCC] (J-28-1) Dimensions shown in inches and (millimeters)--- a 0.125 (3.18) MAX 4 26 5 0.035 (0.89) 0.025 (0.64) 0.450 (11.43) 0.410 (10.41) 0.040 (1.02) REF ´ 45° 3 PLACES 0.460 (11.68) SQ 0.440 (11.18) 25 26 5 PIN 1 INDEX 0.055 (1.40) 0.310 (7.87) 0.290 (7.37) TOP VIEW 4 25 PIN 1 0.050 (1.27) 0.020 (0.51) REF ´ 45° BOTTOM VIEW 0.022 (0.56) 0.012 (0.30) 11 19 12 0.500 (12.70) SQ 0.480 (12.19) 18 19 11 18 CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETERS DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN. 12