12-Lead Lead Frame Chip Scale Package [LFCSP_SS] 4 x 4 mm Body, With Side Solderable Leads (CS-12-2) Dimensions shown in millimeters 0.40 0.35 0.30 0.55 0.50 0.45 PIN 1 INDICATOR 12 10 1.00 BSC 9 1 2.50 2.40 SQ 2.30 EXPOSED PAD 0.33 MIN TOP VIEW 1.50 1.45 1.40 PKG-004431 SEATING PLANE 0.58 0.50 0.44 7 3 6 BOTTOM VIEW 4 0.20 MIN 0.23 0.15 0.07 0.05 MAX 0.02 NOM COPLANARITY 0.08 0.152 REF 11-21-2014-A PIN 1 INDICATOR 4.10 4.00 SQ 3.90