40-Lead Lead Frame Chip Scale Package [LFCSP_VQ] 6 x 6 mm Body, Very Thin Quad (HCP-40-1) Dimensions shown in millimeters 0.30 0.25 0.20 31 1 0.50 BSC 4.75 4.70 SQ 4.65 EXPOSED PAD 21 TOP VIEW 0.90 0.85 0.80 SEATING PLANE 0.35 0.30 0.25 PIN 1 INDICATOR 40 30 11 20 BOTTOM VIEW 10 0.20 MIN 4.50 REF 0.05 MAX 0.02 NOM COPLANARITY 0.08 0.20 REF COMPLIANT TO JEDEC STANDARDS MO-220 03-31-2015-A PIN 1 INDICATOR 6.10 6.00 SQ 5.90