28F640L30, 28F128L30, 28F256L30
Appendix D Mechanical Information
Figure 39. Mechanical Specification for the 64- and 128-Mbit; 56-Ball VF BGA Package
Drawing and Dimensions
A1 Index
Mark
A1 Index
Mark
D
S1
1
2
3
4
5
6
7
8
8
7
6
5
4
3
2
1
S2
A
B
C
D
E
F
A
B
C
D
E
F
E
e
G
G
b
Top View - Ball Side Down
A1
Bottom View - Ball Side Up
A2
A
Seating
Plane
Y
Side View
Note: Drawing not to scale
Millimeters
Nom
Inches
Nom
Dimensions
Package Height
Ball Height
Package Body Thickness
Ball (Lead) Width
Package Body Length
Package Body Width
Package Body Width
Pitch
Ball (Lead) Count
Seating Plane Coplanarity
Corner to Ball A1 Distance Along D (64Mb, 128Mb)
Corner to Ball A1 Distance Along E 64Mb
Corner to Ball A1 Distance Along E 128Mb
Symbol
A
A1
A2
b
D
E
E
e
N
Y
S1
S2
S2
Min
Max
1.000
Notes
Min
Max
0.0394
0.150
0.0059
0.665
0.375
7.700
6.200
9.000
0.750
56
0.0262
0.0148
0.3031
0.2441
0.3543
0.0295
56
0.325
7.600
6.100
8.900
0.425
7.800
6.300
9.100
0.0128
0.2992
0.2402
0.3504
0.0167
0.3071
0.2480
0.3583
(64Mb, 128Mb)
64Mb
128Mb
0.100
1.325
0.950
2.350
0.0039
0.0522
0.0339
0.0925
1.125
0.750
2.150
1.225
0.850
2.250
0.0443
0.0331
0.0846
0.0482
0.0335
0.0886
Datasheet
93
INTEL [ INTEL ]
