05-08-1944

LGA Package
149-Lead (15mm × 15mm × 1.67mm)
(Reference LTC DWG# 05-08-1944 Rev A)
SEE NOTES
DETAIL A
aaa Z
E
Y
X
SEE NOTES
A
aaa Z
3
7
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
PIN 1
A
B
PIN “A1”
CORNER
C
4
b
MOLD
CAP
D
E
SUBSTRATE
F
G
H1
H2
F
H
Z
// bbb Z
D
J
K
DETAIL B
L
DIA (0.500 ±0.025) 149x
M
e
Ø eee S Z X Y
N
P
R
e
G
DETAIL A
DETAIL B
PACKAGE BOTTOM VIEW
7.0
6.0
5.0
4.0
3.0
2.0
0.25
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994
1.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
0.25
PACKAGE TOP VIEW
7.0
b
2. ALL DIMENSIONS ARE IN MILLIMETERS
7.0
6.0
5.0
4.0
0.50 ±0.025 Ø 149x
3.0
2.0
1.0
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
SUGGESTED PCB LAYOUT
TOP VIEW
3
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
SYMBOL
A
b
D
E
e
F
G
H1
H2
aaa
bbb
eee
MIN
1.58
0.45
0.40
1.18
NOM
1.67
0.50
15.0
15.0
1.0
14.0
14.0
0.45
1.22
MAX
1.76
0.55
NOTES
5. PRIMARY DATUM -Z- IS SEATING PLANE
6. THE TOTAL NUMBER OF PADS: 149
7
0.50
1.26
0.15
0.10
0.05
!
PACKAGE ROW AND COLUMN LABELING MAY VARY
AMONG µModule PRODUCTS. REVIEW EACH PACKAGE
LAYOUT CAREFULLY
LTMXXXXXX
µModule
TOTAL NUMBER OF LGA PADS: 149
COMPONENT
PIN “A1”
TRAY PIN 1
BEVEL
PACKAGE IN TRAY LOADING ORIENTATION
LGA 149 0316 REV A
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