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参数资料
| 型号： | MPC8241LVR166B |
| 厂商： | MOTOROLA INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 166 MHz, RISC PROCESSOR, PBGA357 |
| 封装： | 25 X 25 MM, 1.27 MM HEIGHT, PLASTIC, BGA-357 |
| 文件页数： | 39/60页 |
| 文件大小： | 730K |
| 代理商： | MPC8241LVR166B |
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44
MPC8241 Integrated Processor Hardware Specifications
MOTOROLA
System Design Information
1.7
System Design Information
This section provides electrical and thermal design recommendations for successful application of the
MPC8241.
1.7.1
PLL Power Supply Filtering
The AVDD and AVDD2 power signals are provided on the MPC8241 to provide power to the peripheral
logic/memory bus PLL and the MPC603e processor PLL. To ensure stability of the internal clocks, the
power supplied to the AVDD and AVDD2 input signals should be filtered of any noise in the 500 kHz to
10 MHz resonant frequency range of the PLLs. Two separate circuits similar to the one shown in Figure 27
using surface mount capacitors with minimum effective series inductance (ESL) is recommended for AVDD
and AVDD2 power signal pins. 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 using multiple values.
The circuits should be placed as close as possible to the respective input signal pins to minimize noise
coupled from nearby circuits. Routing directly as possible from the capacitors to the input signal pins with
minimal inductance of vias is important.
Figure 27. PLL Power Supply Filter Circuit
1.7.2
Decoupling Recommendations
Due to its dynamic power management feature, the large address and data buses, and its high operating
frequencies, the MPC8241 can generate transient power surges and high frequency noise in its power
supply, especially while driving large capacitive loads. This noise must be prevented from reaching other
components in the MPC8241 system, and the MPC8241 itself requires a clean, tightly regulated source of
power. Therefore, it is recommended that the system designer place at least one decoupling capacitor at each
VDD, GVDD_OVDD, and LVDD pin of the MPC8241. It is also recommended that these decoupling
capacitors receive their power from dedicated power planes in the PCB, utilizing short traces to minimize
inductance. These capacitors should have a value of 0.1 F. Only ceramic SMT (surface mount technology)
capacitors should be used to minimize lead inductance, preferably 0508 or 0603, oriented such that
connections are made along the length of the part.
In addition, it is recommended that there be several bulk storage capacitors distributed around the PCB,
feeding the VDD, GVDD_OVDD, and LVDD planes, to enable quick recharging of the smaller chip
capacitors. These bulk capacitors should have a low ESR (equivalent series resistance) rating to ensure the
quick response time necessary. They should also be connected to the power and ground planes through two
vias to minimize inductance. Suggested bulk capacitors: 100–330 F (AVX TPS tantalum or Sanyo
OSCON).
VDD
AVDD or AVDD2
2.2 F
GND
Low ESL Surface Mount Capacitors
10
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| MPC8241LVR166D | 功能描述:微处理器 - MPU INTEGRATED HOST PROC RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| MPC8241LVR200D | 功能描述:微处理器 - MPU INTEGRATED HOST PROC RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| MPC8241LVR266D | 功能描述:微处理器 - MPU INTEGRATED HOST PROC RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| MPC8241LZQ166D | 功能描述:微处理器 - MPU 166MHz 315.4MIPS RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
| MPC8241LZQ200D | 功能描述:微处理器 - MPU 200MHz 380MIPS RoHS:否 制造商:Atmel 处理器系列:SAMA5D31 核心:ARM Cortex A5 数据总线宽度:32 bit 最大时钟频率:536 MHz 程序存储器大小:32 KB 数据 RAM 大小:128 KB 接口类型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作电源电压:1.8 V to 3.3 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-324 |
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