48-Lead Lead Frame Chip Scale Package [LFCSP_SS] 7 x 7 mm Body, With Side Solderable Leads (CS-48-1) Dimensions shown in millimeters 0.30 0.25 0.20 48 1 37 36 0.50 BSC 12 25 TOP VIEW 0.80 0.75 0.70 PKG-4277 SEATING PLANE 0.075~0.150 (Step dimension) 0.51 0.45 0.41 5.70 5.60 SQ 5.50 EXPOSED PAD 0.30 MIN PIN 1 INDICATOR 24 13 BOTTOM VIEW 5.50 REF 0.05 MAX 0.02 NOM COPLANARITY 0.08 0.203 REF 01-28-2014-A PIN 1 INDICATOR 7.10 7.00 SQ 6.90