05-08-1873

LGA Package
144-Lead (15mm × 15mm × 4.41mm)
(Reference LTC DWG # 05-08-1873 Rev A)
aaa Z
15
BSC
X
4.31 – 4.51
Y
SEE NOTES
DETAIL A
3x, C (0.22 x45°)
0.12 – 0.28
7
13.97
BSC
M
L
K
J
H
15
BSC
SUBSTRATE
F
E
1.27
BSC
0.36 – 0.46
PAD 1
CORNER
G
13.97
BSC
MOLD
CAP
3.95 – 4.05
D
Z
bbb Z
DETAIL B
4
C
B
A
aaa Z
PACKAGE TOP VIEW
PADS
SEE NOTES
0.630 ±0.025 SQ. 143x
11
10
9
8
7
6
5
4
3
2
PACKAGE BOTTOM VIEW
DETAIL B
1
DIA 0.630
PAD 1
6.9850
5.7150
4.4450
3.1750
1.9050
0.6350
0.0000
0.6350
1.9050
3.1750
4.4450
5.7150
6.9850
eee S X Y
12
3
6.9850
DETAIL A
5.7150
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994
4.4450
3.1750
2. ALL DIMENSIONS ARE IN MILLIMETERS
1.9050
3
LAND DESIGNATION PER JESD MO-222, SPP-010
0.6350
0.0000
0.6350
4
DETAILS OF PAD #1 IDENTIFIER ARE OPTIONAL,
BUT MUST BE LOCATED WITHIN THE ZONE INDICATED.
THE PAD #1 IDENTIFIER MAY BE EITHER A MOLD OR
MARKED FEATURE
1.9050
LTMXXXXXX
µModule
5. PRIMARY DATUM -Z- IS SEATING PLANE
3.1750
6. THE TOTAL NUMBER OF PADS: 144
4.4450
7
5.7150
!
PACKAGE ROW AND COLUMN LABELING MAY VARY
AMONG µModule PRODUCTS. REVIEW EACH PACKAGE
LAYOUT CAREFULLY
6.9850
SUGGESTED PCB LAYOUT
TOP VIEW
SYMBOL TOLERANCE
aaa
0.15
bbb
0.10
eee
0.05
COMPONENT
PIN “A1”
TRAY PIN 1
BEVEL
PACKAGE IN TRAY LOADING ORIENTATION
LGA 144 1112 REV A
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