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W24L257 Datasheet(PDF) 8 Page - Winbond |
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W24L257 Datasheet(HTML) 8 Page - Winbond |
8 / 9 page W24L257A - 8 - PACKAGE DIMENSIONS 28-pin P-DIP Skinny 1. Dimensions D Max. & S include mold flash or tie bar burrs. 2. Dimension E1 does not include interlead flash. 3. Dimensions D & E1 include mold mismatch and are determined at the mold parting line. 6. General appearance spec. should be based on final visual inspection spec. 1.63 1.47 0.064 0.058 Notes: Symbol Min. Nom. Max. Max. Nom. Min. Dimension in Inches Dimension in mm A B c D e A L S A1 A2 E 0.060 1.52 0.175 4.45 0.010 0.125 0.016 0.130 0.018 0.135 0.022 3.18 0.41 0.25 3.30 0.46 3.43 0.56 0.008 0.120 0.370 0.010 0.130 0.014 0.140 0.20 3.05 0.25 3.30 0.36 3.56 0.293 0.288 0.283 7.44 7.32 7.19 9.40 7.87 7.62 8.13 0.310 0.300 0.320 2.29 2.54 2.79 0.090 0.100 0.110 B1 1 e E1 a 1.388 1.400 35.26 35.56 0° 15° 0.055 1.40 0.350 0.330 8.38 8.89 15° 0° 4. Dimension B1 does not include dambar protrusion/intrusion. 5. Controlling dimension: Inches. eA A a c E Base Plane Mounting Plane 1 A 1 e L A S 1 E D 1 B B 28 15 1 14 2 28-pin Small Outline J Band 1 y 1 e s 1 b b c L e Seating Plane 1 2 A A A D E H E 14 15 28 £c 0.36 0.20 0.014 0.008 Symbol Min. Nom. Max. Max. Nom. Min. Dimension in Inches Dimension in mm A b c D e HE L y A A S 1 1 2 E 0.010 0.25 0.140 3.56 0.027 0.095 0.016 0.100 0.018 0.105 0.022 2.41 0.41 0.69 2.54 0.46 2.67 0.56 0.077 0.004 0 10 0.710 0.087 0.730 0.097 1.96 18.03 2.21 18.54 2.46 0.285 0.265 0.245 7.24 6.73 6.22 0 0.10 7.75 7.62 7.49 0.305 0.300 0.295 8.31 8.56 8.81 0.327 0.337 0.347 1. Dimensions D Max. & S include mold flash or tie bar burrs. 2. Dimension b does not include dambar protrusion/intrusion. 4. Controlling dimension: Inches. 5. General appearance spec. should be based on final visual inspection spec. Notes: 3. Dimensions D & E include mold mismatch and are determined at the mold parting line. e b 1 0.81 0.71 0.66 0.032 0.028 0.026 0.044 0.050 0.056 1.12 1.27 1.42 0.045 1.14 10 θ |
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