參數(shù)資料
型號： MPC8544VTARJ
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 533 MHz, MICROPROCESSOR, PBGA783
封裝： 29 X 29 MM, 1 MM PITCH, LEAD FREE, PLASTIC, FC-PBGA-783
文件頁數(shù)： 109/112頁
文件大?。?/td> 1294K
代理商： MPC8544VTARJ
MPC8544E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 0
96
Freescale Semiconductor
Thermal
20.3.2
Thermal Interface Materials
A thermal interface material is required at the package-to-heat sink interface to minimize the thermal
contact resistance. For those applications where the heat sink is attached by spring clip mechanism,
Figure 52 shows the thermal performance of three thin-sheet thermal-interface materials (silicone,
graphite/oil, floroether oil), a bare joint, and a joint with thermal grease as a function of contact pressure.
As shown, the performance of these thermal interface materials improves with increasing contact pressure.
The use of thermal grease significantly reduces the interface thermal resistance. The bare joint results in a
thermal resistance approximately six times greater than the thermal grease joint.
Heat sinks are attached to the package by means of a spring clip to holes in the printed-circuit board (see
Figure 50). Therefore, the synthetic grease offers the best thermal performance, especially at the low
interface pressure.
Figure 52. Thermal Performance of Select Thermal Interface Materials
The system board designer can choose between several types of thermal interface. There are several
commercially-available thermal interfaces provided by the following vendors:
Chomerics, Inc.
781-935-4850
77 Dragon Ct.
Woburn, MA 01801
Internet: www.chomerics.com
0
0.5
1
1.5
2
0
1020304050
60
7080
Silicone Sheet (0.006 in.)
Bare Joint
Floroether Oil Sheet (0.007 in.)
Graphite/Oil Sheet (0.005 in.)
Synthetic Grease
Contact Pressure (psi)
Speci
fi
c
The
rm
a
lR
e
si
st
a
n
ce
(K-
in.
2
/W
)
相關(guān)PDF資料
PDF描述
MPC8548ECVTAVHB 32-BIT, 1500 MHz, MICROPROCESSOR, PBGA783
MPC8548ECVUATG 32-BIT, 1200 MHz, MICROPROCESSOR, CBGA783
MPC8548EVTATGB 32-BIT, 1200 MHz, MICROPROCESSOR, PBGA783
MPC8548ECVTATGB 32-BIT, 1200 MHz, MICROPROCESSOR, PBGA783
MPC8548ECVTAUJB 32-BIT, 1333 MHz, MICROPROCESSOR, PBGA783
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MPC8544VTARJA 功能描述:數(shù)字信號處理器和控制器 - DSP, DSC PQ38K 8544 RoHS:否 制造商:Microchip Technology 核心:dsPIC 數(shù)據(jù)總線寬度:16 bit 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:2 KB 最大時鐘頻率:40 MHz 可編程輸入/輸出端數(shù)量:35 定時器數(shù)量:3 設(shè)備每秒兆指令數(shù):50 MIPs 工作電源電壓:3.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TQFP-44 安裝風(fēng)格:SMD/SMT
MPC8545EHXANG 功能描述:微處理器 - MPU PQ38 8548E 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
MPC8545EHXAQG 功能描述:微處理器 - MPU PQ38 8548E 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
MPC8545EHXATG 功能描述:微處理器 - MPU PQ38 8548E 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
MPC8545EPXANGA 功能描述:微處理器 - MPU PQ3 8545E Imaging Processor 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
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*