PC7457 Datasheet, PDF (49/66 Pages) ATMEL Corporation – PowerPC 7457 RISC Microprocessor

PC7457/47 [Preliminary]
Mechanical Dimensions for the PC7457, 483 CBGA
Figure 25 provides the mechanical dimensions and bottom surface nomenclature for the PC7457, 483 CBGA package.
Figure 29. Mechanical Dimensions and Bottom Surface Nomenclature for the PC7457, 483 CBGA Package
2X
0.2
Capacitor Region
D
B
A
A1 CORNER
D1
D3
D2
0.15 A
E3
E
E4
E2
E1
2X
0.2
C
D4
1 2 3 4 5 6 7 8 9 10111213141516 1718 1920 2122
AB
AA
Y
W
V
U
T
R
P
N
M
L
K
J
H
G
F
E
D
C
B
A
A
0.35 A
DIM
A
A1
A2
A3
b
D
D1
A3
D2
D3
D4
A2
e
E
A1 _E1
E2
E3
E4
Millimeters
MIN
MAX
2.72 3.20
0.80 1
1.10 1.30
–
0.6
0.82 0.93
29 BSC
–
12.5
8.5
–
–
8.4
10.9 11.1
1.27 BSC
29 BSC
–
12.5
8.5
–
–
8.4
9.55 9.75
483X b
0.3 A B C
0.15 C
Notes:
1. Dimensioning and tolerancing per ASME Y14.5M, 1994
2. Dimensions in millimeters
3. Top side A1 corner index is a metallized feature with various shapes. Bottom side. A1 corner is designated with a ball miss-
ing from the array
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5345B–HIREL–02/04