- 您现在的位置：买卖IC网 > PDF目录80516 > MPC8544ECVTALGB (FREESCALE SEMICONDUCTOR INC) 32-BIT, 667 MHz, RISC PROCESSOR, PBGA783 PDF资料下载
参数资料
| 型号： | MPC8544ECVTALGB |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 32-BIT, 667 MHz, RISC PROCESSOR, PBGA783 |
| 封装： | 29 X 29 MM, 1 MM PITCH, LEAD FREE, PLASTIC, BGA-783 |
| 文件页数： | 85/120页 |
| 文件大小： | 1321K |
| 代理商： | MPC8544ECVTALGB |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页当前第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页第101页第102页第103页第104页第105页第106页第107页第108页第109页第110页第111页第112页第113页第114页第115页第116页第117页第118页第119页第120页
MPC8544E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
67
High-Speed Serial Interfaces (HSSI)
To illustrate these definitions using real values, consider the case of a CML (Current Mode Logic)
transmitter that has a common mode voltage of 2.25 V and each of its outputs, TD and TD, has a swing
that goes between 2.5 V and 2.0 V. Using these values, the peak-to-peak voltage swing of each signal (TD
or TD) is 500 mV p-p, which is referred as the single-ended swing for each signal. In this example, since
the differential signaling environment is fully symmetrical, the transmitter output’s differential swing
(VOD) has the same amplitude as each signal’s single-ended swing. The differential output signal ranges
between 500 mV and –500 mV, in other words, VOD is 500 mV in one phase and –500 mV in the other
phase. The peak differential voltage (VDIFFp) is 500 mV. The peak-to-peak differential voltage (VDIFFp-p)
is 1000 mV p-p.
16.2
SerDes Reference Clocks
The SerDes reference clock inputs are applied to an internal PLL whose output creates the clock used by
the corresponding SerDes lanes. The SerDes reference clocks inputs are SD1_REF_CLK and
SD1_REF_CLK for PCI Express1, PCI Express2. SD2_REF_CLK, and SD2_REF_CLK for the PCI
Express3 or SGMII interface, respectively. The following sections describe the SerDes reference clock
requirements and some application information.
16.2.1
SerDes Reference Clock Receiver Characteristics
Figure 45 shows a receiver reference diagram of the SerDes reference clocks.
SerDes reference clock receiver reference circuit structure
—The SDn_REF_CLK and SDn_REF_CLK are internally AC-coupled differential inputs as
shown in Figure 45. Each differential clock input (SDn_REF_CLK or SDn_REF_CLK) has a
50-
Ω termination to SGND_SRDSn (xcorevss) followed by on-chip AC-coupling.
— The external reference clock driver must be able to drive this termination.
— The SerDes reference clock input can be either differential or single-ended. Refer to the
differential mode and single-ended mode description below for further detailed requirements.
The maximum average current requirement that also determines the common mode voltage range:
— When the SerDes reference clock differential inputs are DC coupled externally with the clock
driver chip, the maximum average current allowed for each input pin is 8 mA. In this case, the
exact common mode input voltage is not critical as long as it is within the range allowed by the
maximum average current of 8 mA (refer to the following bullet for more detail), since the
input is AC-coupled on-chip.
— This current limitation sets the maximum common mode input voltage to be less than 0.4 V
(0.4 V/50 = 8 mA) while the minimum common mode input level is 0.1 V above
SGND_SRDSn (xcorevss). For example, a clock with a 50/50 duty cycle can be produced by
a clock driver with output driven by its current source from 0mA to 16mA (0–0.8 V), such that
each phase of the differential input has a single-ended swing from 0 V to 800 mV with the
common mode voltage at 400 mV.
相关PDF资料 |
PDF描述 |
|---|---|
| MPC8544VTANFB | 32-BIT, 800 MHz, RISC PROCESSOR, PBGA783 |
| MPC8280ZQPX | 32-BIT, 300 MHz, RISC PROCESSOR, PBGA516 |
| MPC8280ZUBX | 32-BIT, 66 MHz, RISC PROCESSOR, PBGA480 |
| MPC8280ZUTX | 32-BIT, 400 MHz, RISC PROCESSOR, PBGA480 |
| MPC8309VMADDCA | 32-BIT, 266 MHz, RISC PROCESSOR, PBGA489 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MPC8544ECVTANG | 功能描述:微处理器 - MPU PQ38K 8544E 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 |
| MPC8544ECVTANGA | 功能描述:数字信号处理器和控制器 - DSP, DSC PQ38K 8544E RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT |
| MPC8544ECVTAQG | 功能描述:微处理器 - MPU PQ38K 8544E COMMERCIAL 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 |
| MPC8544ECVTAQGA | 功能描述:数字信号处理器和控制器 - DSP, DSC PQ38K 8544E RoHS:否 制造商:Microchip Technology 核心:dsPIC 数据总线宽度:16 bit 程序存储器大小:16 KB 数据 RAM 大小:2 KB 最大时钟频率:40 MHz 可编程输入/输出端数量:35 定时器数量:3 设备每秒兆指令数:50 MIPs 工作电源电压:3.3 V 最大工作温度:+ 85 C 封装 / 箱体:TQFP-44 安装风格:SMD/SMT |
| MPC8544EDVTALF | 功能描述:微处理器 - MPU PQ3 8544E Netwrk Comm Indstrl Cntrl 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 |
发布紧急采购，3分钟左右您将得到回复。