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參數資料
| 型號： | MPC8343CZQAGDX |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 32-BIT, 400 MHz, MICROPROCESSOR, PBGA620 |
| 封裝： | 29 X 29 MM, 2.46 MM HEIGHT, 1 MM PITCH, PLASTIC, BGA-620 |
| 文件頁數： | 81/92頁 |
| 文件大?。?/td> | 987K |
| 代理商： | MPC8343CZQAGDX |
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MPC8343E PowerQUICC II Pro Integrated Host Processor Hardware Specifications, Rev. 6
82
Freescale Semiconductor
System Design Information
20 System Design Information
This section provides electrical and thermal design recommendations for successful application of the
MPC8343E.
20.1
System Clocking
The MPC8343E includes two PLLs.
1. The platform PLL (AVDD1) generates the platform clock from the externally supplied CLKIN
input. The frequency ratio between the platform and CLKIN is selected using the platform PLL
ratio configuration bits as described in Section 18.1, “System PLL Configuration.”
2. The e300 Core PLL (AVDD2) generates the core clock as a slave to the platform clock. The
frequency ratio between the e300 core clock and the platform clock is selected using the e300
PLL ratio configuration bits as described in Section , “.”
20.2
PLL Power Supply Filtering
Each of the PLLs listed above is provided with power through independent power supply pins
(AVDD1,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 five independent filter circuits as illustrated in Figure 34, one to each of the five 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 package, without the inductance of vias.
Figure 34 shows the PLL power supply filter circuit.
Figure 34. PLL Power Supply Filter Circuit
VDD
AVDD (or L2AVDD)
2.2 F
GND
Low ESL Surface Mount Capacitors
10
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相關代理商/技術參數 |
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| MPC8343EA | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:MPC8343EA PowerQUICC II Pro Integrated Host Processor Hardware Specifications |
| MPC8343ECVRADDB | 功能描述:微處理器 - MPU 8347 PBGA NO-PB W/ ENC RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC8343ECVRAGD | 功能描述:IC MPU PWRQUICC II PRO 620-PBGA RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微處理器 系列:MPC83xx 標準包裝:1 系列:MPC85xx 處理器類型:32-位 MPC85xx PowerQUICC III 特點:- 速度:1.2GHz 電壓:1.1V 安裝類型:表面貼裝 封裝/外殼:783-BBGA，FCBGA 供應商設備封裝:783-FCPBGA（29x29） 包裝:托盤 |
| MPC8343ECVRAGDB | 功能描述:微處理器 - MPU 8347 PBGA NO-PB W/ ENC RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC8343ECZQADDB | 功能描述:微處理器 - MPU 8347 PBGA ENCRYP W/ PB RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數據總線寬度:32 bit 最大時鐘頻率:536 MHz 程序存儲器大小:32 KB 數據 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324 |
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