M24256-AMN6(2001) View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
M24256-AMN6 Datasheet PDF : 20 Pages
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M24256-A
SBGA7 – 7 ball Shell Ball Grid Array – Underside view (ball side)
D3
D2 FD
D1
b
E
BALL ”1”
FE
E3
E2
E1
Note: 1. Drawing is not to scale.
D
A
A1
SBGA-01
SBGA7 – 7 ball Shell Ball Grid Array
Symb.
Typ.
mm
Min.
Max.
Typ.
in ches
Min.
A
0.430
0.380
0.480
0.017
0.015
A1
0.180
0.150
0.210
0.007
0.006
b
0.350
0.320
0.380
0.014
0.013
D
3.555
3.525
3.585
0.140
0.138
D2 1
1.000
0.970
1.030
0.039
0.038
E
2.275
2.245
2.305
0.090
0.088
FD
1.278
—
—
0.050
—
FE
0.388
—
—
0.015
—
N
7
7
Note: 1. No ball is closer than D2 to any other ball, thus giving an arrangement of equilateral triangles in which:
E1 = D2/2 ; E2 = D2 ; E3 = 3xD2/2
D3 = √3xD2/2 ; D1 = D2 + √3xD2/2
Max.
0.019
0.008
0.015
0.142
0.041
0.091
—
—
18/20
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