- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄4101 > MPC8540VT833LC (Freescale Semiconductor)MPU POWERQUICC III 783FCPBGA PDF資料下載
參數(shù)資料
| 型號： | MPC8540VT833LC |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 92/104頁 |
| 文件大?。?/td> | 0K |
| 描述： | MPU POWERQUICC III 783FCPBGA |
| 標(biāo)準(zhǔn)包裝： | 36 |
| 系列： | MPC85xx |
| 處理器類型： | 32-位 MPC85xx PowerQUICC III |
| 速度： | 833MHz |
| 電壓： | 1.2V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 784-BBGA，F(xiàn)CBGA |
| 供應(yīng)商設(shè)備封裝： | 783-FCPBGA（29x29） |
| 包裝： | 托盤 |
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頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁當(dāng)前第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁
MPC8540 Integrated Processor Hardware Specifications, Rev. 4.1
88
Freescale Semiconductor
System Design Information
17 System Design Information
This section provides electrical and thermal design recommendations for successful application of the
MPC8540.
17.1 System Clocking
The MPC8540includes two PLLs.
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 15.2, “Platform/System PLL Ratio.”
2. The e500 Core PLL generates the core clock as a slave to the platform clock. The frequency ratio
between the e500 core clock and the platform clock is selected using the e500 PLL ratio
configuration bits as described in Section 15.3, “e500 Core PLL Ratio.”
17.2 PLL Power Supply Filtering
Each of the PLLs listed above is provided with power through independent power supply pins (AVDD1 and
AVDD2, respectively). The AVDD level should always be equivalent to VDD, and preferably these voltages
will be derived directly from VDD through a low frequency filter scheme such as the following.
There are a number of ways to reliably provide power to the PLLs, but the recommended solution is to
provide three independent filter circuits as illustrated in Figure 52, one to each of the three AVDD 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 pin being supplied to minimize
noise coupled from nearby circuits. It should be possible to route directly from the capacitors to the AVDD
pin, which is on the periphery of the 783 FC-PBGA footprint, without the inductance of vias.
Figure 52 shows the PLL power supply filter circuit.
Figure 52. PLL Power Supply Filter Circuit
VDD
AVDD (or L2AVDD)
2.2 F
GND
Low ESL Surface Mount Capacitors
10
Ω
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 1-84533-6 | CONN FFC 16POS 1.25MM R/A PCB |
| MPC8260AZUPJDB | IC MPU POWERQUICC II 480-TBGA |
| 2-1734248-9 | CONN FPC/ZIP 29POS 1MM VERT SMD |
| MPC8260AVVPJDB | IC MPU POWERQUICC II 480-TBGA |
| MPC8555ECPXALF | IC MPU POWERQUICC III 783-FCPBGA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPC8540VTAQFB | 功能描述:微處理器 - MPU PQ 3 8540-DRACOM 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 |
| MPC8540VTAQFC | 功能描述:微處理器 - MPU PQ 3 8540-DRACOM 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 |
| MPC8541CPXAJD | 功能描述:微處理器 - MPU PQ 37 LITE 8555 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 |
| MPC8541CVTAJD | 功能描述:微處理器 - MPU PQ 37 LITE 8555 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 |
| MPC8541E PXAJD | 制造商:FREESCALE-SEMI 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。