05-08-1919

LGA Package
70-Lead (15mm × 9mm × 4.32mm)
(Reference LTC DWG# 05-08-1919 Rev A)
aaa Z
E
Y
X
SEE NOTES
DETAIL A
A
7
G
SEE NOTES
PAD 1
3
A
PAD “A1”
CORNER
B
4
b
C
D
E
MOLD
CAP
D
SUBSTRATE
F
F
G
H1
H
Z
// bbb Z
H2
J
e
K
DETAIL B
L
aaa Z
DIA (0.630 ±0.025) 70x
7
Ø eee S Z X Y
PACKAGE TOP VIEW
6
5
4
3
2
1
PACKAGE BOTTOM VIEW
DETAIL B
DETAIL A
3.810
2.540
2. ALL DIMENSIONS ARE IN MILLIMETERS
1.270
0.3175
0.3175
1.270
2.540
3.810
0.000
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994
5.080
3.810
2.540
1.270
0.000
1.270
2.540
3.810
5.080
6.350
LAND DESIGNATION PER JESD MO-222, SPP-010
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
DIMENSIONS
6.350
0.630 ±0.025 Ø 70x
3
SYMBOL
A
b
D
E
e
F
G
H1
H2
aaa
bbb
eee
MIN
4.22
0.60
0.27
3.95
NOM
4.32
0.63
15.00
9.00
1.27
12.70
7.62
0.32
4.00
MAX
4.42
0.66
NOTES
5. PRIMARY DATUM -Z- IS SEATING PLANE
6. THE TOTAL NUMBER OF PADS: 70
7
0.37
4.05
0.15
0.10
0.05
TOTAL NUMBER OF LGA PADS: 70
!
PACKAGE ROW AND COLUMN LABELING MAY VARY
AMONG µModule PRODUCTS. REVIEW EACH PACKAGE
LAYOUT CAREFULLY
LTMXXXXXX
µModule
COMPONENT
PAD “A1”
SUGGESTED PCB LAYOUT
TOP VIEW
TRAY PIN 1
BEVEL
PACKAGE IN TRAY LOADING ORIENTATION
LGA 70 1212 REV A
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