12-Lead Lead Frame Chip Scale Package [LFCSP_SS] 3 x 3 mm Body, With Side Solderable Leads (CS-12-4) Dimensions shown in millimeters 0.30 0.25 0.20 0.50 BSC 0.30 MIN TOP VIEW 0.80 0.75 0.70 PKG-000000 SEATING PLANE 0.075~0.150 (Step dimension) PIN 1 INDICATOR 12 10 1 9 1.70 1.60 SQ 1.50 EXPOSED PAD 3 7 0.51 0.45 0.41 6 4 BOTTOM VIEW 0.20 MIN 1.00 REF 0.05 MAX 0.02 NOM COPLANARITY 0.08 0.203 REF 03-20-2015-A PIN 1 INDICATOR 3.10 3.00 SQ 2.90