- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45388 > MSC7119VM1200 (FREESCALE SEMICONDUCTOR INC) 0-BIT, 300 MHz, OTHER DSP, PBGA400 PDF資料下載
參數(shù)資料
| 型號： | MSC7119VM1200 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 數(shù)字信號處理 |
| 英文描述： | 0-BIT, 300 MHz, OTHER DSP, PBGA400 |
| 封裝： | LEAD FREE, MAPBGA-400 |
| 文件頁數(shù)： | 52/60頁 |
| 文件大小： | 1138K |
| 代理商： | MSC7119VM1200 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁當(dāng)前第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁
MSC7119 Data Sheet, Rev. 8
Hardware Design Considerations
Freescale Semiconductor
56
3.5.3
General Routing
The general routing considerations for the DDR are as follows:
All DDR signals must be routed next to a solid reference:
— For data, next to solid ground planes.
— For address/command, power planes if necessary.
All DDR signals must be impedance controlled. This is system dependent, but typical values are 50–60 ohm.
Minimize other cross-talk opportunities. As possible, maintain at least a four times the trace width spacing between all
DDR signals to non-DDR signals.
Keep the number of vias to a minimum to eliminate additional stubs and capacitance.
Signal group routing priorities are as follows:
— DDR clocks.
— Route MVTT/MVREF.
— Data group.
— Command/address.
Minimize data bit jitter by trace matching.
3.5.4
Routing Clock Distribution
The DDR clock distribution considerations are as follows:
DDR controller supports six clock pairs:
— 2 DIMM modules.
— Up to 36 discrete chips.
For route traces as for any other differential signals:
— Maintain proper difference pair spacing.
— Match pair traces within 25 mm.
Match all clock traces to within 100 mm.
Keep all clocks equally loaded in the system.
Route clocks on inner critical layers.
3.5.5
Data Routing
The DDR data routing considerations are as follows:
Route each data group (8-bits data + DQS + DM) on the same layer. Avoid switching layers within a byte group.
Take care to match trace lengths, which is extremely important.
To make trace matching easier, let adjacent groups be routed on alternate critical layers.
Pin swap bits within a byte group to facilitate routing (discrete case).
Tight trace matching is recommended within the DDR data group. Keep each 8-bit datum and its DM signal within ±
25 mm of its respective strobe.
Minimize lengths across the entire DDR channel:
— Between all groups maintain a delta of no more than 500 mm.
— Allows greater flexibility in the design for readjustments as needed.
DDR data group separation:
— If stack-up allows, keep DDR data groups away from the address and control nets.
— Route address and control on separate critical layers.
— If resistor networks (RNs) are used, attempt to keep data and command lines in separate packages.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MSC8102M4000 | 32-BIT, 75 MHz, OTHER DSP, CBGA431 |
| MSC8122TVT6400 | 32-BIT, 400 MHz, OTHER DSP, PBGA431 |
| MSC8122TVT4800V | 32-BIT, 300 MHz, OTHER DSP, PBGA431 |
| MSC8122MP8000 | 32-BIT, 500 MHz, OTHER DSP, PBGA431 |
| MSC8144ETVT800B | 133 MHz, OTHER DSP, PBGA783 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSC711XADS | 功能描述:開發(fā)板和工具包 - 其他處理器 DEV SYS FOR FSL 711X DEV RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
| MSC711XEVM | 功能描述:開發(fā)板和工具包 - 其他處理器 EVAL KIT W/FULL LIC CW RoHS:否 制造商:Freescale Semiconductor 產(chǎn)品:Development Systems 工具用于評估:P3041 核心:e500mc 接口類型:I2C, SPI, USB 工作電源電壓: |
| MSC711XEVMT | 功能描述:KIT EVAL W/FULL LIC CW RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:* 標(biāo)準(zhǔn)包裝:1 系列:- 傳感器類型:CMOS 成像，彩色（RGB） 傳感范圍:WVGA 接口:I²C 靈敏度:60 fps 電源電壓:5.7 V ~ 6.3 V 嵌入式:否 已供物品:成像器板 已用 IC / 零件:KAC-00401 相關(guān)產(chǎn)品:4H2099-ND - SENSOR IMAGE WVGA COLOR 48-PQFP4H2094-ND - SENSOR IMAGE WVGA MONO 48-PQFP |
| MSC7121VRF | 制造商:Freescale Semiconductor 功能描述:GPON UMC 140 MHZ - Trays |
| MSC7128 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:5 x 7-Dot Character x 16-Digit Display Controller/Driver |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。