a 38-Lead Thin Shrink Small Outline Package [TSSOP] (RU-38) Dimensions shown in millimeters 9.80 9.70 9.60 20 38 4.50 4.40 4.30 1 6.40 BSC 19 PIN 1 1.20 MAX 0.15 0.05 COPLANARITY 0.10 0.50 BSC 0.27 0.17 SEATING 0.20 PLANE 0.09 8 0 COMPLIANT TO JEDEC STANDARDS MS-153BD-1 0.70 0.60 0.45