MOTOROLA
Chapter 8. Package Description
8-3
Nomenclature and Dimensions of the 256 MAPBGA Package
Figure 8-2. 256 MAPBGA Dimensions
1.60
0.47
0.60
DIM
MIN
NOTES
MAX
A
A1
A2
b
D
E
e
S
DIMENSIONS ARE IN MILLIMETERS.
INTERPRET DIMENSIONS AND TOLERANCES PER
ASME Y14.5M–1994.
DIMENSION b IS MEASURED AT THE MAXIMUM
SOLDER BALL DIAMETER, PARALLEL TO DATUM
PLANE Z.
DATUM Z (SEATING PLANE) IS DEFINED BY THE
SPHERICAL CROWNS OF THE SOLDER BALLS.
PARALLELISM MEASUREMENT SHALL EXCLUDE
ANY EFFECT OF MARK ON TOP SURFACE OF
PACKAGE.
5
4
3
2
1
1.25
0.27
0.40
1.16 REF
17.00 BSC
17.00 BSC
1.00 BSC
0.50 BSC
DETAIL K
A
A1
Z
4
VIEW ROTATED 90° CLOCKWISE
A2
0.15
Z
5
256X
Z
0.30
Summary of Contents for MC92603
Page 18: ...xviii MC92603 Quad Gigabit Ethernet Transceiver Reference Manual MOTOROLA ...
Page 26: ...1 8 MC92603 Quad Gigabit Ethernet Transceiver Reference Manual MOTOROLA References ...
Page 116: ...A 2 MC92603 Quad Gigabit Ethernet Transceiver Reference Manual MOTOROLA ...
Page 126: ...C 2 MC92603 Quad Gigabit Ethernet Transceiver Reference Manual MOTOROLA ...
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