RELEASED
PM7366 FREEDM-8
DATA SHEET
PMC-1970930
ISSUE 4
FRAME ENGINE AND DATA LINK MANAGER
19
MECHANICAL INFORMATION
Figure 44 – 256 Pin Enhanced Ball Grid Array (SBGA)
1
D1, M
0.127
A
-A-
A1 BALL
CORNER
D
A1 BALL
CORNER
20
18
14
12
10
8
6
4
2
16
19
17
15
13
11
9
7
5
3
1
-B-
.30
A
C
A
S
B
S
A
B
C
D
E
b
A1 BALL I.D.
INK MARK
F
G
H
J
K
L
E1, N
E
M
N
P
R
T
A
U
V
W
Y
e
0.127
A
e
TOP VIEW
A
BOTTOM VIEW
DIE SIDE
A
A2
P
C
ccc
bbb
aaa
-C-
SIDE VIEW
A1
ddd
SEATING PLANE
A-A SECTION VIEW
Notes: 1) ALL DIMENSIONS IN MILLIMETER.
2) DIMENSION aaa DENOTES COPLANARITY
3) DIMENSION bbb DENOTES PARALLEL
4) DIMENSION ccc DENOTES FLATNESS
256 PIN THERMAL BALL GRID ARRAY
PACKAGE TYPE:
BODY SIZE:
27 x 27 x 1.45 MM
Dim.
e
b
aaa
ddd
0. 15
P
A
A1
0. 56
0. 63
0.70
A2
D
D1
E
E1
24. 03
M,N
bbb
ccc
0.60
0.75
0.90
0.20
0.30
0.35
Min.
1.32
1.45
1.58
0. 76
0.82
0.88
26. 90
27. 00
27. 10
24. 03
24. 13
24. 23
26. 90
27. 00
27. 10
Nom.
Max.
24. 13
24. 23
20x20
1. 27
0. 33
0. 50
0. 15
0. 20
0.15
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA,INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
270
PMC [ PMC-SIERRA, INC ]
