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| 型號： | MPC8360ZUALDHA |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 667 MHz, RISC PROCESSOR, PBGA740 |
| 封裝： | 37.50 X 37.50 MM, 1.46 MM HEIGHT, 1 MM PITCH, TBGA-740 |
| 文件頁數(shù)： | 95/102頁 |
| 文件大?。?/td> | 606K |
| 代理商： | MPC8360ZUALDHA |
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MPC8360E/MPC8358E PowerQUICC II Pro Processor Revision 2.x TBGA Silicon Hardware Specifications, Rev. 5
92
Freescale Semiconductor
Thermal Management Information
22.2
Thermal Management Information
For the following sections, PD = (VDD × IDD) + PI/O where PI/O is the power dissipation of the I/O drivers. See Table 6 for
typical power dissipations values.
22.2.1
Estimation of Junction Temperature with Junction-to-Ambient
Thermal Resistance
An estimation of the chip junction temperature, TJ, can be obtained from the equation:
TJ = TA + (RθJA × PD)
where:
TJ = junction temperature (° C)
TA = ambient temperature for the package (° C)
RθJA = junction-to-ambient thermal resistance (° C/W)
PD = power dissipation in the package (W)
The junction-to-ambient thermal resistance is an industry standard value that provides a quick and easy estimation of thermal
performance. As a general statement, the value obtained on a single-layer board is appropriate for a tightly packed
printed-circuit board. The value obtained on the board with the internal planes is usually appropriate if the board has low power
dissipation and the components are well separated. Test cases have demonstrated that errors of a factor of two (in the quantity
TJ – TA) are possible.
22.2.2
Estimation of Junction Temperature with Junction-to-Board
Thermal Resistance
The thermal performance of a device cannot be adequately predicted from the junction-to-ambient thermal resistance. The
thermal performance of any component is strongly dependent on the power dissipation of surrounding components.
Additionally, the ambient temperature varies widely within the application. For many natural convection and especially closed
box applications, the board temperature at the perimeter (edge) of the package is approximately the same as the local air
temperature near the device. Specifying the local ambient conditions explicitly as the board temperature provides a more precise
description of the local ambient conditions that determine the temperature of the device. At a known board temperature, the
junction temperature is estimated using the following equation:
Junction-to-package natural convection on top
ψJT
1
° C/W
Notes
1. Junction temperature is a function of die size, on-chip power dissipation, package thermal resistance, mounting site (board)
temperature, ambient temperature, airflow, power dissipation of other components on the board, and board thermal
resistance.
2. Per JEDEC JESD51-2 and SEMI G38-87 with the single layer board horizontal.
3. Per JEDEC JESD51-6 with the board horizontal. 1 m/sec is approximately equal to 200 linear feet per minute (LFM).
4. Thermal resistance between the die and the printed-circuit board per JEDEC JESD51-8. Board temperature is measured
on the top surface of the board near the package.
5. Thermal resistance between the die and the case top surface as measured by the cold plate method (MIL SPEC-883
Method 1012.1).
6. Thermal characterization parameter indicating the temperature difference between package top and the junction
temperature per JEDEC JESD51-2. When Greek letters are not available, the thermal characterization parameter is written
as Psi-JT.
Table 77. Package Thermal Characteristics for the TBGA Package (continued)
Characteristic
Symbol
Value
Unit
Notes
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| MPC8360ZUALFG | 功能描述:微處理器 - MPU 8360 TBGA NON-ENCRP RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC8360ZUALFGA | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC II Pro Processor Revision 2.x TBGA Silicon Hardware Specifications |
| MPC8360ZUALFH | 功能描述:微處理器 - MPU 8360 TBGA NON-ENCRP RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC8360ZUALFHA | 功能描述:微處理器 - MPU 8360 TBGA NON-ENCRP RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC8377CVRAFDA | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications |
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