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VG37648041AT 参数 Datasheet PDF下载

VG37648041AT图片预览
型号: VG37648041AT
PDF下载: 下载PDF文件 查看货源
内容描述: 256M : X4,X8 , X16 CMOS同步动态RAM [256M:x4, x8, x16 CMOS Synchronous Dynamic RAM]
分类和应用:
文件页数/大小: 86 页 / 964 K
品牌: VML [ VANGUARD INTERNATIONAL SEMICONDUCTOR ]
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Preliminary  
VG37648041AT  
256M:x4, x8, x16  
VIS  
CMOS Synchronous Dynamic RAM  
POWER-DOWN MODE  
t
t
t
CK  
CL  
CH  
CLK#  
CLK  
t
t
t
t
IS  
IS  
IH  
IS  
CKE  
t
t
IH  
IS  
COMMAND  
VALID  
VALID  
VALID*  
t
NOP  
t
IH  
IS  
VALID  
ADDR  
DQS  
DQ  
DM  
Enter  
Power-Down  
Mode  
Exit  
Power-Down  
Mode  
DONT’ CARE  
UNDEFINED  
No column accesses are allowed to be in progress at the time Power-Down in entered  
*= If this command is a PRECHARGE (or if the device is already in the idle state) then the Power-Down  
mode shown is Precharge Power Down. If this command is an ACTIVE (or if at lease one row is already  
active) then the Power-Down mode shown is Active Power Down.  
Document : 1G5-0157  
Rev.1  
Page77  
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