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PCB Layout
7.2.10 System Expansion Connector
The system expansion connector is a 128-pin DIN 41612 connector, which provides a
minimal system I/F required to interface to other tool-boards that may use the CPM
expansion connector. This connector contains 16-bit (lower PPC bus) address lines, 16-bit
(higher PPC bus) data lines, plus useful GPCM and UPM control lines.
7.2.11 USB Connector
The USB connectors are standard type-A and type-B USB connectors.
7.2.12 Parallel Port Connector
The parallel connector is a standard 25 pin D-Type male connector.
7.3
PCB Layout
The MPC8272ADS layout was done for high-frequency operation and follows the PCI
standard layout recommendations closely. The following list of measures are taken to meet
this design goal:
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Traces as short as possible
Clock signals and sensitive strobe signals shielded and routed as a chain
Multilayer PCB with ground and supply layers
PCI signals lengths and impedance according to PCI standard Rev. 2.2
MPC8272ADS User Guide
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相关代理商/技术参数
MPC8272CVR 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:MPC8272 PowerQUICC II Family Hardware Specifications
MPC8272CVRB 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications
MPC8272CVRE 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications
MPC8272CVRI 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications
MPC8272CVRM 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications
MPC8272CVRMIBA 功能描述:微处理器 - MPU 266 MHz 505.4 MIPS 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
MPC8272CVRP 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:PowerQUICC II⑩ Family Hardware Specifications
MPC8272CVRPIEA 功能描述:微处理器 - MPU 300 MHz 570 MIPS 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