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| 型號： | MPC8323VRADDC |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 71/82頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC MPU PWRQUICC II 516-PBGA |
| 產(chǎn)品培訓(xùn)模塊： | MPC8323E PowerQUICC II Pro Processor |
| 標(biāo)準(zhǔn)包裝： | 40 |
| 系列： | MPC83xx |
| 處理器類型： | 32-位 MPC83xx PowerQUICC II Pro |
| 速度： | 266MHz |
| 電壓： | 1V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 516-BBGA |
| 供應(yīng)商設(shè)備封裝： | 516-FPBGA（27x27） |
| 包裝： | 托盤 |
| 配用： | MPC8323E-RDB-ND - BOARD REFERENCE DESIGN |
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MPC8323E PowerQUICC II Pro Integrated Communications Processor Family Hardware Specifications, Rev. 4
Freescale Semiconductor
73
Thermal
(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:
TJ = TB + (RθJB × PD)
where:
TJ = junction temperature (°C)
TB = board temperature at the package perimeter (°C)
RθJB = junction-to-board thermal resistance (°C/W) per JESD51-8
PD = power dissipation in package (W)
When the heat loss from the package case to the air can be ignored, acceptable predictions of junction
temperature can be made. The application board should be similar to the thermal test condition: the
component is soldered to a board with internal planes.
23.2.3
Experimental Determination of Junction Temperature
To determine the junction temperature of the device in the application after prototypes are available, the
thermal characterization parameter (
Ψ
JT) can be used to determine the junction temperature with a
measurement of the temperature at the top center of the package case using the following equation:
TJ = TT + (ΨJT × PD)
where:
TJ = junction temperature (°C)
TT = thermocouple temperature on top of package (°C)
Ψ
JT = thermal characterization parameter (°C/W)
PD = power dissipation in package (W)
The thermal characterization parameter is measured per JESD51-2 specification using a 40 gauge type T
thermocouple epoxied to the top center of the package case. The thermocouple should be positioned so
that the thermocouple junction rests on the package. A small amount of epoxy is placed over the
thermocouple junction and over about 1 mm of wire extending from the junction. The thermocouple wire
is placed flat against the package case to avoid measurement errors caused by cooling effects of the
thermocouple wire.
23.2.4
Heat Sinks and Junction-to-Case Thermal Resistance
In some application environments, a heat sink is required to provide the necessary thermal management of
the device. When a heat sink is used, the thermal resistance is expressed as the sum of a junction-to-case
thermal resistance and a case to ambient thermal resistance:
RθJA = RθJC + RθCA
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| MPC8323VRADDCA | 制造商:Freescale Semiconductor 功能描述:POWERQUICC, 32 BIT POWER ARCHITECTURE SOC, 266MHZ E300, QE, - Trays 制造商:Freescale Semiconductor 功能描述:IC MPU PWRQUICC 266MHZ 516BGA |
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| MPC8323VRAFDCA | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Integrated Communications Processor Family Hardware Specifications |
| MPC8323ZQADDC | 功能描述:微處理器 - MPU 8323 PBGA W/O ENCR 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 |
| MPC8323ZQADDCA | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Integrated Communications Processor Family Hardware Specifications |
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