a 20-Lead Plastic Leaded Chip Carrier [PLCC] (P-20A) Dimensions shown in inches and (millimeters) 0.180 (4.57) 0.165 (4.19) 0.048 (1.21) 0.042 (1.07) 3 0.048 (1.21) 0.042 (1.07) 0.056 (1.42) 0.042 (1.07) 19 18 4 TOP VIEW (PINS DOWN) 14 8 0.020 (0.50) R 9 0.050 (1.27) BSC 0.20 (0.51) MIN 0.020 (0.50) R 0.021 (0.53) 0.013 (0.33) 0.330 (8.38) 0.032 (0.81) 0.290 (7.37) 0.026 (0.66) 13 0.356 (9.04) 0.350 (8.89) SQ 0.395 (10.02) SQ 0.385 (9.78) 0.040 (1.01) 0.025 (0.64) 0.120 (3.04) 0.090 (2.29) COMPLIANT TO JEDEC STANDARDS MO-047AA CONTROLLING DIMENSIONS ARE IN INCHES; MILLIMETER DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF INCH EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN BOTTOM VIEW (PINS UP)