05-08-1842

LGA Package
84-Lead (15mm × 9mm × 4.32mm)
(Reference LTC DWG # 05-08-1842 Rev B)
SEE NOTES
DETAIL A
4.22 – 4.42
7
aaa Z
6
5
4
3
2
7
1
A
PAD “A1”
CORNER
DIA (0.630)
PAD 1
B
4
C
D
E
15.00
BSC
MOLD
CAP
F
13.97
BSC
SUBSTRATE
G
H
0.27 – 0.37
3.95 – 4.05
J
K
Z
bbb Z
DETAIL B
L
M
aaa Z
0.630 ±0.025 SQ. 83x
X
9.00
BSC
3× CHAMFER
0.22 × 45°
eee S X Y
Y
DETAIL B
1.27
BSC
PADS
SEE NOTES
3
PACKAGE BOTTOM VIEW
3.810
2.540
1.270
0.000
1.270
2.540
3.810
0.315
0.315
PACKAGE TOP VIEW
7.620
BSC
DETAIL A
6.985
NOTES:
1. DIMENSIONING AND TOLERANCING PER ASME Y14.5M-1994
5.715
2. ALL DIMENSIONS ARE IN MILLIMETERS
4.445
3
LAND DESIGNATION PER JESD MO-222
3.175
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
1.905
0.635
0.000
0.635
1.905
3.175
5. PRIMARY DATUM -Z- IS SEATING PLANE
6. THE TOTAL NUMBER OF PADS: 84
7
!
PACKAGE ROW AND COLUMN LABELING MAY VARY
AMONG µModule PRODUCTS. REVIEW EACH PACKAGE
LAYOUT CAREFULLY
4.445
5.715
6.985
SUGGESTED PCB LAYOUT
TOP VIEW
SYMBOL TOLERANCE
aaa
0.15
bbb
0.10
eee
0.05
COMPONENT
PIN “A1”
TRAY PIN 1
BEVEL
LTMXXXXXX
µModule
PACKAGE IN TRAY LOADING ORIENTATION
LGA 84 1212 REV B
Similar pages