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ICS1531 Datenblatt(PDF) 71 Page - Integrated Circuit Systems |
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ICS1531 Datenblatt(HTML) 71 Page - Integrated Circuit Systems |
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71 / 76 page ![]() Chapter 12 Package Dimensions ICS1531 Rev N 12/1/99 December, 1999 71 Copyright © 1999, Integrated Circuit Systems, Inc. All rights reserved. ICS1531 Data Sheet - Preliminary Chapter 12 Package Dimensions This section gives the physical dimensions for the package for the ICS1531, which is a 144-pin LQFP. • The lead count (N) for the package is 144 leads. • The nominal footprint (that is the body) for the package is 20 mm × 20 mm × 1.4 mm. Note: 1. For full mechanical specifications, see JEDEC drawing number MS-026 Rev A. 2. Table 12-1 lists the ICS1531 physical dimensions. These dimensions are: a. For planning purposes only. b. Subject to change. c. Shown in Figure 12-1. Table 12-1. Physical Dimensions for ICS1531 Symbol Description Min. Nominal Max. Unit A Full Package Height – – 1.60 mm A1 Package Body Standoff 0.05 – 0.15 mm A2 Package Body Thickness 1.35 1.40 1.45 mm b Lead Width 0.17 0.22 0.27 mm c Lead Thickness 0.09 – 0.20 mm D Tip-to-Tip Dimension 21.8 22.0 22.2 mm D1 Package Body Dimension 19.9 20.0 20.1 mm e Lead Pitch – 0.50 – mm E Tip-to-Tip Dimension 21.8 22.0 22.2 mm E1 Package Body Dimension 19.9 20.0 20.1 mm L Lead Length, Entire Length – 1.0 – mm L1 Lead Length, Segment 1 (Lead Tip Length) 0.45 0.60 0.75 mm Θ Lead Tip Angle 0 – 7 degrees |
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