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PC7447 Datasheet(PDF) 49 Page - ATMEL Corporation |
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PC7447 Datasheet(HTML) 49 Page - ATMEL Corporation |
49 / 66 page 49 PC7457/47 [Preliminary] 5345B–HIREL–02/04 Mechanical Dimensions for the PC7457, 483 CBGA Figure 25 provides the mechanical dimensions and bottom surface nomenclature for the PC7457, 483 CBGA package. Figure 29. Mechanical Dimensions and Bottom Surface Nomenclature for the PC7457, 483 CBGA Package Notes: 1. Dimensioning and tolerancing per ASME Y14.5M, 1994 2. Dimensions in millimeters 3. Top side A1 corner index is a metallized feature with various shapes. Bottom side. A1 corner is designated with a ball miss- ing from the array C A 483X A B C D E F G H J K L M N P R T B 0.3 C 0.15 b U W V Y AB AA 123456 78 9 10111213141516 1718 1920 21 22 Capacitor Region A 0.15 A 0.35 A A A1 A2 A3 Millimeters DIM MIN MAX A 2.72 3.20 A1 0.80 1 A2 1.10 1.30 A3 – 0.6 b 0.82 0.93 D 29 BSC D1 – 12.5 D2 8.5 – D3 – 8.4 D4 10.9 11.1 e 1.27 BSC E 29 BSC E1 – 12.5 E2 8.5 – E3 – 8.4 E4 9.55 9.75 0.2 2X C A1 CORNER B 0.2 2X D E E3 E2 E1 E4 D2 D4 D3 D1 |
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