05-08-1840

LGA Package
141-Lead (15mm × 15mm × 2.82mm)
(Reference LTC DWG # 05-08-1840 Rev B)
12
A
aaa Z
SEE NOTES
DETAIL A
11
10
9
8
7
6
5
4
3
2
7
1
M
L
b
K
J
H
MOLD
CAP
SUBSTRATE
G
F
D
E
Z
bbb Z
F
H1
H2
D
DETAIL B
C
B
e
0.630 ±0.025 SQ. 143x
PIN “A1”
CORNER
A
eee S X Y
4
X
aaa Z
DETAIL B
PACKAGE SIDE VIEW
G
3
PACKAGE BOTTOM VIEW
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994
DETAIL A
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
PACKAGE TOP VIEW
2. ALL DIMENSIONS ARE IN MILLIMETERS
6.9850
5.7150
4.4450
3.1750
1.9050
0.6350
0.0000
0.6350
1.9050
3.1750
4.4450
5.7150
DIMENSIONS
SYMBOL
A
b
D
E
e
F
G
H1
H2
aaa
bbb
eee
MIN
2.72
0.60
0.27
2.45
NOM
2.82
0.63
15.00
15.00
1.27
13.97
13.97
0.32
2.50
MAX
2.92
0.66
NOTES
3
BALL DESIGNATION PER JESD MS-028 AND JEP95
4
DETAILS OF PIN #1 IDENTIFIER ARE OPTIONAL,
BUT MUST BE LOCATED WITHIN THE ZONE INDICATED.
THE PIN #1 IDENTIFIER MAY BE EITHER A MOLD OR
MARKED FEATURE
5. PRIMARY DATUM -Z- IS SEATING PLANE
6. THE TOTAL NUMBER OF PADS: 141
7
0.37
2.55
0.15
0.10
0.05
TOTAL NUMBER OF LGA PADS: 141
!
PACKAGE ROW AND COLUMN LABELING MAY VARY
AMONG µModule PRODUCTS. REVIEW EACH PACKAGE
LAYOUT CAREFULLY
LTMXXXXXX
µModule
6.9850
SUGGESTED PCB LAYOUT
TOP VIEW
C(0.22 x 45°)
PAD 1
e
b
SEE NOTES
Y
E
COMPONENT
PIN “A1”
TRAY PIN 1
BEVEL
PACKAGE IN TRAY LOADING ORIENTATION
LGA 141 1212 REV B
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