a 144-Lead Low Profile Quad Flat Package [LQFP] (ST-144) Dimensions shown in millimeters 0.75 0.60 0.45 1.60 MAX 144 1 PIN 1 22.20 22.00 SQ 21.80 TOP VIEW (PINS DOWN) 1.45 1.40 1.35 0.15 0.05 SEATING PLANE VIEW A ROTATED 90° CCW 0.20 0.09 7° 3.5° 0° 0.08 COPLANARITY 36 37 VIEW A 0.50 BSC LEAD PITCH 0.27 0.22 0.17 20.20 20.00 SQ 19.80 109 108 73 72 COMPLIANT TO JEDEC STANDARDS MS-026-BFB A - 6 0 7 1 5 0