參數(shù)資料
型號： MPC8245LZU350X
廠商： MOTOROLA INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 350 MHz, RISC PROCESSOR, PBGA352
封裝： 35 X 35 MM, 1.65 MM HEIGHT, 1.27 MM PITCH, CAVITY DOWN, TBGA-352
文件頁數(shù)： 7/60頁
文件大?。?/td> 620K
代理商： MPC8245LZU350X
MPC8245 Integrated Processor Hardware Specications
15
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Electrical and Thermal Characteristics
8
Pin to pin skew includes quantifying the additional amount of clock skew (or jitter) from the DLL besides
any intentional skew added to the clocking signals from the variable length DLL synchronization feedback
loop, i.e. the amount of variance between the internal sys-logic_clk and the SDRAM_SYNC_IN signal
after the DLL is locked. While pin to pin skew between SDRAM_CLKs can be measured, the relationship
between the internal sys-logic_clk and the external SDRAM_SYNC_IN can not be measured and is
guaranteed by design.
Figure 4 shows the PCI_SYNC_IN input clock timing diagram and Figure 7 shows the DLL locking range
loop delay vs. frequency of operation.
.
Figure 4. PCI_SYNC_IN Input Clock Timing Diagram
The graphs that follow dene the areas of DLL locking for various modes. The grey areas represent where
the DLL will lock.
Note the following bit descriptions and denitions:.
1. For Standard DLL mode (non extended) : Clear bit 7 (DLL_EXTEND) at offset 0x72. (Default)
2. For Extended DLL mode: Set bit 7 (DLL_EXTEND) at offset 0x72.
3. Normal Tap Delay (Default): Clear bit 2 (DLL_MAX_DELAY) at offset 0x76.
4. Max Tap Delay: Set bit 2 (DLL_MAX_DELAY) at offset 0x76.
Note: The DLL_MAX_DELAY bit can lengthen the amount of time through the delay line. This is accomplished
by increasing the time between each of the 128 tap points in the delay line. Although this increased time
makes it easier to guarantee that the reference clock will be within the DLL lock range, it also means there
may be slightly more jitter in the output clock of the DLL, should the phase comparator shift the clock
between adjacent tap points.
5a
5b
VM
VM = Midpoint Voltage (1.4V)
2
3
CVIL
CVIH
1
PCI_SYNC_IN
VM
相關PDF資料
PDF描述
MPC8270CVVQLDA 32-BIT, 333 MHz, RISC PROCESSOR, PBGA480
MPC8270CZUQLDA 32-BIT, 333 MHz, RISC PROCESSOR, PBGA480
MPC8321EVRADDC 32-BIT, 266 MHz, RISC PROCESSOR, PBGA516
MPC8349EZUAJF 32-BIT, 533 MHz, RISC PROCESSOR, PBGA672
MPC850CZQ50BUR2 32-BIT, 50 MHz, RISC PROCESSOR, PBGA256
相關代理商/技術(shù)參數(shù)
參數(shù)描述
MPC8245RZU400D 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:Part Number Specification for the MPC8245ARZUnnnX Series
MPC8245TVV266D 功能描述:微處理器 - MPU INTEGRATED HOST PROC 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8245TVV300D 功能描述:微處理器 - MPU INTEGRATED HOST PROC 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8245TVV333D 功能描述:微處理器 - MPU INTEGRATED HOST PROC 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
MPC8245TVV350D 功能描述:微處理器 - MPU INTEGRATED HOST PROC 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 安裝風格:SMD/SMT 封裝 / 箱體:FBGA-324
發(fā)布緊急采購，3分鐘左右您將得到回復。

采購需求

(若只采購一條型號，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進入我的后臺，查看報價

*型號 *數(shù)量 廠商 批號 封裝
添加更多采購

我的聯(lián)系方式

*
*
*