28F256L18 View Datasheet(PDF) - Numonyx -> Micron
Part Name
Description
MFG CO.
'28F256L18' PDF : 106 Pages View PDF
Numonyx™ StrataFlash® Wireless Memory (L18)
Figure 2: 256-Mbit, 79-Ball VF BGA Package Drawing and Dimensions
A1 Index
Mark
D
S1 A1 Index
Mark
1 2 3 4 5 6 7 8 9 10 11 1213
1312 11 10 9 8 7 6 5 4 3 2 1
S2
A
A
B
B
C
C
E
D
D
E
E
F
F
G
G
b
e
Top View - Ball Side Down
Bottom View - Ball Side Up
A1
A2
A
Seating
Y
Plane
Side View
Dimensions Table
Dimens ions
Package Height
Ball Height
Package Body Thickness
Ball (Lead) Width
Package Body Length (256Mb)
Package Body Width (256Mb)
Pitch
Ball (Lead) Count
Seating Plane Coplanarity
Corner to Ball A1 Distance Along D
Corner to Ball A1 Distance Along E
Drawing not to scale
Symbol
A
A1
A2
b
D
E
e
N
Y
S1
S2
Millimeters
Min Nom Max Notes
1.000
0.150
0.665
0.325 0.375 0.425
10.900 11.000 11.100
8.900 9.000 9.100
0.750
79
0.100
0.900 1.000 1.100
2.150 2.250 2.350
Min
0.0059
0.0128
0.4291
0.3504
0.0354
0.0846
Inches
Nom
0.0262
0.0148
0.4331
0.3543
0.0295
79
0.0394
0.0886
Max
0.0394
0.0167
0.4370
0.3583
0.0039
0.0433
0.0925
Datasheet
12
November 2007
251902-12
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