40-Lead Lead Frame Chip Scale Package [LFCSP_WQ] 6 x 6 mm Body, Very Very Thin Quad (CP-40-16) Dimensions shown in millimeters PIN 1 INDICATOR 6.10 6.00 SQ 5.90 0.30 0.23 0.18 40 31 30 0.50 BSC 1 PIN 1 INDICATOR 3.05 2.90 SQ 2.75 EXPOSED PAD 21 TOP VIEW PKG-004333 SEATING PLANE 11 20 BOTTOM VIEW 10 0.25 MIN 4.50 REF 0.05 MAX 0.02 NOM COPLANARITY 0.08 0.20 REF COMPLIANT TO JEDEC STANDARDS MO-220-WJJD-2. 08-22-2013-A 0.80 0.75 0.70 0.50 0.40 0.30