ACS8520T Semtech, ACS8520T Datasheet - Page 143
ACS8520T
Manufacturer Part Number
ACS8520T
Description
Synchronous Equipment Timing Source (SETS) for Stratum 3/4E/4 and SMC Systems
Manufacturer
Semtech
Datasheet
1.ACS8520T.pdf
(150 pages)
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Figure 29 LQFP Package
Table 42 100 Pin LQFP Package Dimension Data (for use with Figure 29)
Revision 3.02/October 2005 © Semtech Corp.
Package Information
ADVANCED COMMUNICATIONS
Dimensions
100 LQFP
Package
in mm
Nom.
Max.
Min.
16.00 14.00 1.50 0.10 1.40 0.50 12
D/E
-
-
D1/
2
E1
-
-
E
Seating plane
3
1
Notes
E1
1.40 0.05 1.35
1.60 0.15 1.45
1
2
4
5
6
7
8
3
A
A
A2
The top package body may be smaller than the bottom package body by as much as 0.15 mm.
To be determined at seating plane.
Dimensions D1 and E1 do not include mold protrusion. Allowable protrusion is 0.25 mm per side.
D1 and E1 are maximum plastic body size dimensions including mold mismatch.
Details of pin 1 identifier are optional but will be located within the zone indicated.
Exact shape of corners can vary.
A1 is defined as the distance from the seating plane to the lowest point of the package body.
These dimensions apply to the flat section of the lead between 0.10 mm and 0.25 mm from the lead tip.
Shows plating.
A1
A1
6
1 2 3
4
A2
e
-
-
D1
D
2
1
AN1 AN2 AN3 AN4
11
13
b
o
o
o
3
e
11
12
13
A
FINAL
Page 143
o
o
o
0
5
-
-
o
A
3.5
0
7
o
o
o
0.08 0.08 0.45
1
R1
-
-
AN1
7
0.20 0.75
R2
c
-
R1
S
0.60 1.00
L
AN2
b1
b
L1
7
7
B
L
(ref)
R2
L1
-
-
AN3
B
AN4
ACS8520 SETS
c1
Section A-A
7
8
0.20 0.17 0.17 0.09 0.09
Section B-B
S
-
-
0.22 0.20
0.27 0.23 0.20 0.16
b
DATASHEET
www.semtech.com
b1
c
-
c1
-
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