參數(shù)資料
型號(hào): MC8641HX1250HB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 32-BIT, 166.66 MHz, MICROPROCESSOR, CBGA1023
封裝: 33 X 33 MM, CERAMIC, BGA-1023
文件頁數(shù): 51/130頁
文件大?。?/td> 1493K
代理商: MC8641HX1250HB
MPC8641 and MPC8641D Integrated Host Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
27
DDR and DDR2 SDRAM
Figure 5 shows the DDR SDRAM output timing for the MCK to MDQS skew measurement (tDDKHMH).
Figure 5. Timing Diagram for tDDKHMH
Figure 6 shows the DDR SDRAM output timing diagram.
Figure 6. DDR SDRAM Output Timing Diagram
MDQS
MCK[n]
tMCK
tDDKHMHmax) = 0.6 ns
tDDKHMH(min) = –0.6 ns
MDQS
ADDR/CMD
tDDKHAS ,tDDKHCS
tDDKHMH
tDDKLDS
tDDKHDS
MDQ[x]
MDQS[n]
MCK[n]
tMCK
tDDKLDX
tDDKHDX
D1
D0
tDDKHAX ,tDDKHCX
Write A0
NOOP
tDDKHME
tDDKHMP
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