ICS1531 Data Sheet - Preliminary
Chapter 12 Package Dimensions
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
Full Package Height
Min.
–
Nominal
–
Max.
1.60
0.15
1.45
0.27
0.20
22.2
20.1
–
Unit
mm
A
A1
A2
b
Package Body Standoff
Package Body Thickness
Lead Width
0.05
1.35
0.17
0.09
21.8
19.9
–
–
mm
1.40
0.22
–
mm
mm
c
Lead Thickness
mm
D
Tip-to-Tip Dimension
Package Body Dimension
Lead Pitch
22.0
20.0
0.50
22.0
20.0
1.0
mm
D1
e
mm
mm
E
Tip-to-Tip Dimension
Package Body Dimension
Lead Length, Entire Length
Lead Length, Segment 1 (Lead Tip Length)
Lead Tip Angle
21.8
19.9
–
22.2
20.1
–
mm
E1
L
mm
mm
L1
Θ
0.45
0
0.60
–
0.75
7
mm
degrees
ICS1531 Rev N 12/1/99
December, 1999
Copyright © 1999, Integrated Circuit Systems, Inc.
All rights reserved.
71
ICSI [ INTEGRATED CIRCUIT SOLUTION INC ]
