參數(shù)資料
型號(hào): MT18VDVF6472DG-265XX
元件分類(lèi): DRAM
英文描述: 64M X 72 DDR DRAM MODULE, 0.75 ns, DMA184
封裝: DIMM-184
文件頁(yè)數(shù): 21/38頁(yè)
文件大?。?/td> 713K
代理商: MT18VDVF6472DG-265XX
PDF: 09005aef81c73825/Source: 09005aef81c73837
Micron Technology, Inc., reserves the right to change products or specifications without notice.
DVF18C64_128x72D_2.fm - Rev. A 8/05 EN
28
2003, 2004, 2005 Micron Technology, Inc. All rights reserved.
512MB, 1GB: (x72, DR) 184-Pin DDR VLP RDIMM
Initialization
Figure 10:
Initialization Flow Diagram
VDD and VDDQ Ramp
Apply VREF and VTT
CKE must be LVCMOS Low
Apply stable CLOCKs
Bring CKE High with a NOP command
Wait at least 200s
PRECHARGE ALL
Assert NOP or DESELECT for tRP time
Configure Extended Mode Register
Configure Load Mode Register and reset DLL
Assert NOP or DESELECT for tMRD time
PRECHARGE ALL
Issue AUTO REFRESH command
Assert NOP or DESELECT for tRFC time
Optional LMR command to clear DLL bit
Assert NOP or DESELECT for tMRD time
DRAM is ready for any valid command
Step
1
2
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5
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10
11
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Assert NOP or DESELECT commands for tRFC
Issue AUTO REFRESH command
Assert NOP or DESELECT for tRP time
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