- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄3936 > MC8641DHX1250HE (Freescale Semiconductor)IC DUAL CORE PROCESSOR 1023-CBGA PDF資料下載
參數(shù)資料
| 型號(hào)： | MC8641DHX1250HE |
| 廠商： | Freescale Semiconductor |
| 文件頁(yè)數(shù)： | 21/130頁(yè) |
| 文件大小： | 0K |
| 描述： | IC DUAL CORE PROCESSOR 1023-CBGA |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | MPC86xx |
| 處理器類(lèi)型： | 32-位 MPC86xx PowerPC |
| 速度： | 1.25GHz |
| 電壓： | 1.05V |
| 安裝類(lèi)型： | 表面貼裝 |
| 封裝/外殼： | 1023-BCBGA，F(xiàn)CCBGA |
| 供應(yīng)商設(shè)備封裝： | 1023-FCCBGA（33x33） |
| 包裝： | 托盤(pán) |
第1頁(yè)第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)第20頁(yè)當(dāng)前第21頁(yè)第22頁(yè)第23頁(yè)第24頁(yè)第25頁(yè)第26頁(yè)第27頁(yè)第28頁(yè)第29頁(yè)第30頁(yè)第31頁(yè)第32頁(yè)第33頁(yè)第34頁(yè)第35頁(yè)第36頁(yè)第37頁(yè)第38頁(yè)第39頁(yè)第40頁(yè)第41頁(yè)第42頁(yè)第43頁(yè)第44頁(yè)第45頁(yè)第46頁(yè)第47頁(yè)第48頁(yè)第49頁(yè)第50頁(yè)第51頁(yè)第52頁(yè)第53頁(yè)第54頁(yè)第55頁(yè)第56頁(yè)第57頁(yè)第58頁(yè)第59頁(yè)第60頁(yè)第61頁(yè)第62頁(yè)第63頁(yè)第64頁(yè)第65頁(yè)第66頁(yè)第67頁(yè)第68頁(yè)第69頁(yè)第70頁(yè)第71頁(yè)第72頁(yè)第73頁(yè)第74頁(yè)第75頁(yè)第76頁(yè)第77頁(yè)第78頁(yè)第79頁(yè)第80頁(yè)第81頁(yè)第82頁(yè)第83頁(yè)第84頁(yè)第85頁(yè)第86頁(yè)第87頁(yè)第88頁(yè)第89頁(yè)第90頁(yè)第91頁(yè)第92頁(yè)第93頁(yè)第94頁(yè)第95頁(yè)第96頁(yè)第97頁(yè)第98頁(yè)第99頁(yè)第100頁(yè)第101頁(yè)第102頁(yè)第103頁(yè)第104頁(yè)第105頁(yè)第106頁(yè)第107頁(yè)第108頁(yè)第109頁(yè)第110頁(yè)第111頁(yè)第112頁(yè)第113頁(yè)第114頁(yè)第115頁(yè)第116頁(yè)第117頁(yè)第118頁(yè)第119頁(yè)第120頁(yè)第121頁(yè)第122頁(yè)第123頁(yè)第124頁(yè)第125頁(yè)第126頁(yè)第127頁(yè)第128頁(yè)第129頁(yè)第130頁(yè)
MPC8641 and MPC8641D Integrated Host Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
117
System Design Information
20 System Design Information
This section provides electrical and thermal design recommendations for successful application of the
MPC8641.
20.1
System Clocking
This device includes six PLLs, as follows:
1. The platform PLL generates the platform clock from the externally supplied SYSCLK input. The
frequency ratio between the platform and SYSCLK is selected using the platform PLL ratio
configuration bits as described in Section 18.2, “MPX to SYSCLK PLL Ratio.”
2. The dual e600 Core PLLs generate the e600 clock from the externally supplied input.
3. The local bus PLL generates the clock for the local bus.
4. There are two internal PLLs for the SerDes block.
20.2
Power Supply Design and Sequencing
20.2.1
PLL Power Supply Filtering
Each of the PLLs listed above is provided with power through independent power supply pins.
There are a number of ways to reliably provide power to the PLLs, but the recommended solution is to
provide independent filter circuits per PLL power supply as illustrated in Figure 64, one to each of the
AVDD type pins. By providing independent filters to each PLL the opportunity to cause noise injection
from one PLL to the other is reduced.
This circuit is intended to filter noise in the PLLs resonant frequency range from a 500 kHz to 10 MHz
range. It should be built with surface mount capacitors with minimum Effective Series Inductance (ESL).
Consistent with the recommendations of Dr. Howard Johnson in High Speed Digital Design: A Handbook
of Black Magic (Prentice Hall, 1993), multiple small capacitors of equal value are recommended over a
single large value capacitor.
Each circuit should be placed as close as possible to the specific AVDD type pin being supplied to minimize
noise coupled from nearby circuits. It should be possible to route directly from the capacitors to the AVDD
type pin, which is on the periphery of the footprint, without the inductance of vias.
Figure 63 and Figure 64 show the PLL power supply filter circuits for the platform and cores, respectively.
Figure 63. MPC8641 PLL Power Supply Filter Circuit (for platform and Local Bus)
2.2 F
GND
Low ESL Surface Mount Capacitors
10
Ω
AVDD_PLAT, AVDD_LB;
VDD_PLAT
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC8641DHX1000GE | IC DUAL CORE PROCESSOR 1023-CBGA |
| MPC8572VTAVND | MPU POWERQUICC III 1023-PBGA |
| MPC8572VTAVNB | MPU POWERQUICC III 1023-PBGA |
| MPC8572VTAULB | MPU POWERQUICC III 1023-PBGA |
| MPC8572VTATLB | MPU POWERQUICC III 1023-PBGA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC8641DHX1250J | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications |
| MC8641DHX1250K | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications |
| MC8641DHX1250N | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications |
| MC8641DHX1333G | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications |
| MC8641DHX1333H | 制造商:FREESCALE 制造商全稱(chēng):Freescale Semiconductor, Inc 功能描述:Integrated Host Processor Hardware Specifications |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。