- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄367799 > PC7457VGU1200N (Atmel Corp.) PowerPC 7457 RISC Microprocessor PDF資料下載
參數(shù)資料
| 型號： | PC7457VGU1200N |
| 廠商： | Atmel Corp. |
| 英文描述： | PowerPC 7457 RISC Microprocessor |
| 中文描述： | 7457的PowerPC RISC微處理器 |
| 文件頁數(shù)： | 14/66頁 |
| 文件大小： | 522K |
| 代理商： | PC7457VGU1200N |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁當(dāng)前第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁
14
PC7457/47 [Preliminary]
5345B–HIREL–02/04
Internal Package Conduction
Resistance
For the exposed-die packaging technology, shown in Table 4 on page 13, the intrinsic
conduction thermal resistance paths are as follows:
The die junction-to-case (actually top-of-die since silicon die is exposed) thermal
resistance
The die junction-to-ball thermal resistance
Figure 33 on page 58 depicts the primary heat transfer path for a package with an
attached heat sink mounted to a printed-circuit board.
Figure 4.
C4 Package with Heat Sink Mounted to a Printed-Circuit Board
Note the internal versus external package resistance.
Heat generated on the active side of the chip is conducted through the silicon, then
through the heat sink attach material (or thermal interface material), and finally to the
heat sink where it is removed by forced-air convection.
Because the silicon thermal resistance is quite small, for a first-order analysis, the tem-
perature drop in the silicon may be neglected. Thus, the thermal interface material and
the heat sink conduction/convective thermal resistances are the dominant terms.
External Resistance
External Resistance
Internal Resistance
Radiation
Convection
Heat Sink
Thermal Interface Material
Die/Package
Die Junction
Package/Leads
Printed-Circuit Board
Radiation
Convection
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PC7457VGU933L | PowerPC 7457 RISC Microprocessor |
| PC7457VGU933N | PowerPC 7457 RISC Microprocessor |
| PC74HC4016 | SPST Analog Switch |
| PC74HCT4046A | Phase-Locked Loop |
| PC74HCT4543 | LCD Display Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PC7457VGU933L | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:PowerPC 7457 RISC Microprocessor |
| PC7457VGU933N | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:PowerPC 7457 RISC Microprocessor |
| PC7457VGU933NC | 制造商:e2v technologies 功能描述:PC7457VGU933NC - Trays |
| PC745B | 制造商:Datak Corporation 功能描述:POTENTIOMETERS |
| PC745BMGH300LE | 制造商:e2v technologies 功能描述:PC745BMGH300LE - Trays |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。