參數(shù)資料
型號: MPC745CPX350LE
廠商: Freescale Semiconductor
文件頁數(shù): 27/56頁
文件大?。?/td> 0K
描述: MCU HIP4DP 350MHZ 255-PBGA
標(biāo)準(zhǔn)包裝: 60
系列: MPC7xx
處理器類型: 32-位 MPC7xx PowerPC
速度: 350MHz
電壓: 2V
安裝類型: 表面貼裝
封裝/外殼: 255-BBGA,F(xiàn)CBGA
供應(yīng)商設(shè)備封裝: 255-FCPBGA(21x21)
包裝: 托盤
MPC755 RISC Microprocessor Hardware Specifications, Rev. 8
Freescale Semiconductor
33
Package Description
7.1
Package Parameters for the MPC745 PBGA
The package parameters are as provided in the following list. The package type is 21
× 21 mm, 255-lead
plastic ball grid array (PBGA).
Package outline
21
× 21 mm
Interconnects
255 (16
× 16 ball array – 1)
Pitch
1.27 mm (50 mil)
Minimum module height
2.25 mm
Maximum module height
2.80 mm
Ball diameter (typical)
0.75 mm (29.5 mil)
7.2
Mechanical Dimensions for the MPC745 PBGA
Figure 18 provides the mechanical dimensions and bottom surface nomenclature for the MPC745,
255 PBGA package.
Figure 18. Mechanical Dimensions and Bottom Surface Nomenclature for the MPC745,
255 PBGA 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 THE ARRAY.
4. CAPACITOR PADS MAY BE
UNPOPULATED.
Millimeters
DIM
Min
Max
A
2.25
2.80
A1
0.50
0.70
A2
1.00
1.20
A3
—0.60
b
0.60
0.90
D
21.00 BSC
D1
6.75
E
21.00 BSC
E1
7.87
e
1.27 BSC
0.2
D
2X
A1 CORNER
E
0.2
B
A
C
0.2 C
B
C
255X
e
123456789 10 111213141516
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
A
0.3
C
0.15
b
E1
D1
A
A1
A2
A3
1
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