參數(shù)資料
型號(hào): MPC8245LZU300X
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 300 MHz, RISC PROCESSOR, PBGA352
封裝: 35 X 35 MM, 1.65 MM HEIGHT, 1.27 MM PITCH, CAVITY DOWN, TBGA-352
文件頁(yè)數(shù): 46/60頁(yè)
文件大?。?/td> 620K
代理商: MPC8245LZU300X
50
MPC8245 Integrated Processor Hardware Specications
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
System Design Information
Thermalloy
972-243-4321
2021 W. Valley View Lane
Dallas, TX 75234-8993
Internet: www.thermalloy.com
Wakeeld Engineering
781-406-3000
100 Cummings Center, Suite 157H
Beverly, MA 01915
Internet: www.wakeeld.com
Aavid Engineering
972-551-7330
250 Apache Trail
Terrell, TX 75160
Internet: www.aavid.com
Ultimately, the nal selection of an appropriate heat sink depends on many factors, such as thermal
performance at a given air velocity, spatial volume, mass, attachment method, assembly, and cost.
1.7.10.1 Internal Package Conduction Resistance
For the TBGA, cavity down, packaging technology, shown in Figure 29, the intrinsic conduction thermal
resistance paths are as follows:
The die junction-to-case thermal resistance
The die junction-to-ball thermal resistance
Figure 31 depicts the primary heat transfer path for a package with an attached heat sink mounted to a
printed-circuit board.
Figure 31. TBGA Package with Heat Sink Mounted to a Printed-Circuit Board
External Resistance
Internal Resistance
(Note the internal versus external package resistance)
Radiation
Convection
Radiation
Convection
Heat Sink
Printed-Circuit Board
Thermal Interface Material
Package/Leads
Die Junction
Die/Package
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