參數(shù)資料
型號: IBM25EMPPC740LDBC4000
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 400 MHz, RISC PROCESSOR, CBGA255
封裝: 21 X 21 MM, 1.27 MM PITCH, CERAMIC, BGA-255
文件頁數(shù): 25/50頁
文件大小: 600K
代理商: IBM25EMPPC740LDBC4000
5/20/99
Version 1.51
PowerPC 740 and PowerPC 750 Datasheet
Page 27
PowerPC 740 and PowerPC 750 Embedded Microprocessor
IBM CMOS 0.20 um Copper Technology EMPPC740L and EMPPC750L
Mechanical Dimensions of the 255 CBGA Package
Figure 14. Mechanical Dimensions and Bottom Surface Nomenclature of the 255 CBGA
Package
NOTES:
1.
DIMENSIONING AND TOLERANCING PER
ASME Y14.5M, 1994.
2.
DIMENSIONS IN MILLIMETERS.
3.
TOP SIDE A1 CORNER INDEX IS A
METALIZED FEATURE WITH VARIOUS
SHAPES. BOTTOM SIDE A1 CORNER IS
DESIGNATED WITH A BALL MISSING FROM
DIM
MIN
MAX
MILLIMETERS
A
2.45
3.00
A1
0.80
1.00
A2
0.90
1.10
b
0.82
0.93
D
21.00 BSC
D1
5.443 BSC
e
1.27 BSC
E
21.00 BSC
E1
8.075 BSC
A
A1
A2
C
0.15 C
B
C
255X
e
123456789 10111213141516
T
R
P
N
M
L
K
J
H
G
F
E
D
C
B
A
e/2
A
0.3
C
0.15
b
e/2
0.2
D
2X
A1 CORNER
E
E1
D1
0.2
2X
B
A
There is no ball
A1 CORNER
Top View
X-ray view of balls
from top of package
in the A01 position
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