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參數(shù)資料
| 型號： | MPC7410RX500LX |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 500 MHz, RISC PROCESSOR, CBGA360 |
| 封裝： | 25 X 25 MM, 3.20 MM HEIGHT, 1.27 MM PITCH, CERAMIC, BGA-360 |
| 文件頁數(shù)： | 33/44頁 |
| 文件大小： | 885K |
| 代理商： | MPC7410RX500LX |
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MPC7410 RISC Microprocessor Hardware Specifications
39
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
System Design Information
Since the silicon thermal resistance is quite small, for a first-order analysis, the temperature drop in the
silicon may be neglected. Thus, the heat sink attach material and the heat sink conduction/convective
thermal resistances are the dominant terms.
1.8.9.2 Adhesives and Thermal Interface Materials
A thermal interface material is recommended at the package lid-to-heat sink interface to minimize the
thermal contact resistance. For those applications where the heat sink is attached by spring clip mechanism,
Figure 26 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. That is, the bare joint results
in a thermal resistance approximately seven 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 25). This spring force should not exceed 10 pounds of force. Therefore, the synthetic grease offers
the best thermal performance, considering the low interface pressure. Of course, the selection of any thermal
interface material depends on many factors—thermal performance requirements, manufacturability, service
temperature, dielectric properties, cost, etc.
Figure 26. Thermal Performance of Select Thermal Interface Material
The board designer can choose between several types of thermal interface. Heat sink adhesive materials
should be selected based upon high conductivity, yet adequate mechanical strength to meet equipment
shock/vibration requirements. There are several commercially-available thermal interfaces and adhesive
materials provided by the following vendors:
0
0.5
1
1.5
2
0
1020304050
607080
Silicone Sheet (0.006”)
Bare Joint
Floroether Oil Sheet (0.007”)
Graphite/Oil Sheet (0.005”)
Synthetic Grease
Contact Pressure (psi)
Specifi
c
Th
erm
al
Resi
st
an
ce
(Kin
2
/W)
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| MPC7410THX400LE | 功能描述:微處理器 - MPU NT HITCE RV1.4 1.8V -40C 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 |
| MPC7410THX400NE | 制造商:Freescale Semiconductor 功能描述:MPU MPC74XX RISC 64BIT 0.18UM 400MHZ 1.8V/2.5V/3.3V 360FCCBG - Bulk |
| MPC7410THX450NE | 功能描述:微處理器 - MPU NT NITCE RV1.4,1.8V -40C 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 |
| MPC7410THX500LE | 功能描述:微處理器 - MPU NT HITCE RV1.4 1.8V -40C 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 |
| MPC7410TRX400NE | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:RISC Microprocessor Hardware Specifications Addendum |
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