Electronic Component Distributor. Source::Freescale Semiconductor
P.N:MPC8349CZUAGDB Desc:IC MPU POWERQUICC II PRO 672TBGA
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MPC8349EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 13
74
Freescale Semiconductor
Thermal
20 Thermal
This section describes the thermal specifications of the MPC8349EA.
20.1
Thermal Characteristics
Table 63
provides the package thermal characteristics for the 672 35
×
35 mm TBGA of the MPC8349EA.
306
0011
0000110
—
—
66
200
600
405
0100
0000101
—
—
66
266
667
504
0101
0000100
—
—
66
333
667
1
The PLL configuration reference number is the hexadecimal representation of RCWL, bits 4–15 associated with the SPMF and
COREPLL settings given in the table.
2
The input clock is CLKIN for PCI host mode or PCI_CLK for PCI agent mode.
Table 63. Package Thermal Characteristics for TBGA
Characteristic
Symbol
Value
Unit Notes
Junction-to-ambient natural convection on single-layer board (1s)
R
θ
JA
14
°
C/W
1, 2
Junction-to-ambient natural convection on four-layer board (2s2p)
R
θ
JMA
11
°
C/W
1, 3
Junction-to-ambient (at 200 ft/min) on single-layer board (1s)
R
θ
JMA
11
°
C/W
1, 3
Junction-to-ambient (at 200 ft/min) on four-layer board (2s2p)
R
θ
JMA
8
°
C/W
1, 3
Junction-to-ambient (at 2 m/s) on single-layer board (1s)
R
θ
JMA
9
°
C/W
1, 3
Junction-to-ambient (at 2 m/s) on four-layer board (2s2p)
R
θ
JMA
7
°
C/W
1, 3
Junction-to-board thermal
R
θ
JB
3.8
°
C/W
4
Junction-to-case thermal
R
θ
JC
1.7
°
C/W
5
Table 62. Suggested PLL Configurations (continued)
Ref
No.
1
RCWL
400 MHz Device
533 MHz Device
667 MHz Device
SPMF
CORE
PLL
Input
Clock
Freq
(MHz)
2
CSB
Freq
(MHz)
Core
Freq
(MHz)
Input
Clock
Freq
(MHz)
2
CSB
Freq
(MHz)
Core
Freq
(MHz)
Input
Clock
Freq
(MHz)
2
CSB
Freq
(MHz)
Core
Freq
(MHz)
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