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EM42BM3284LBA_09 参数 Datasheet PDF下载

EM42BM3284LBA_09图片预览
型号: EM42BM3284LBA_09
PDF下载: 下载PDF文件 查看货源
内容描述: 1GB ( 8M × 4Bank × 32 ),双倍数据速率SDRAM [1Gb (8M×4Bank×32) Double DATA RATE SDRAM]
分类和应用: 动态存储器双倍数据速率
文件页数/大小: 24 页 / 1075 K
品牌: EOREX [ EOREX CORPORATION ]
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eorex  
EM42BM3284LBA  
3. Operative Command Table (Continued)  
Current  
State  
/CS /R /C /W  
Addr.  
Command  
Action  
H
L
L
X
H
H
X
H
H
X
H
L
X
X
DESL  
NOP  
TERM  
NOP(Continue burst to end)  
NOP(Continue burst to end)  
ILLEGAL  
BA/CA/A10  
ILLEGAL (Note 1)  
ILLEGAL (Note 1)  
L
L
H
L
L
X
H
BA/RA  
BA/A10  
X
READ/WRITE  
ACT  
Read with  
AP  
H
ILLEGAL (Note 1)  
ILLEGAL  
L
L
L
L
H
L
L
PRE/PREA  
REFA  
H
X
Op-Code,  
Mode-Add  
L
L
L
L
MRS  
ILLEGAL  
H
L
L
X
H
H
X
H
H
X
H
L
X
X
X
DESL  
NOP  
TERM  
NOP(Continue burst to end)  
NOP(Continue burst to end)  
ILLEGAL  
ILLEGAL (Note 1)  
ILLEGAL (Note 1)  
L
L
H
L
L
X
H
BA/CA/A10 READ/WRITE  
Write with AP  
H
BA/RA  
ACT  
ILLEGAL (Note 1)  
ILLEGAL  
L
L
L
L
H
L
L
BA/A10  
PRE/PREA  
REFA  
H
X
Op-Code,  
Mode-Add  
L
L
L
L
MRS  
ILLEGAL  
H
L
L
X
H
H
X
H
H
X
H
L
X
X
X
DESL  
NOP  
TERM  
NOP(idle after tRP)  
NOP(idle after tRP)  
NOP  
ILLEGAL (Note 1)  
ILLEGAL (Note 1)  
L
L
H
L
L
X
H
BA/CA/A10 READ/WRITE  
Pre-charging  
H
BA/RA  
ACT  
NOP(idle after tRP) (Note 3)  
ILLEGAL  
L
L
L
L
H
L
L
BA/A10  
PRE/PREA  
REFA  
H
X
Op-Code,  
Mode-Add  
L
L
L
L
MRS  
ILLEGAL  
H
L
L
X
H
H
X
H
H
X
H
L
X
X
X
DESL  
NOP  
TERM  
NOP(Row active after tRCD  
NOP(Row active after tRCD  
NOP  
ILLEGAL (Note 1)  
ILLEGAL (Note 1)  
)
)
L
L
H
L
L
X
H
BA/CA/A10 READ/WRITE  
Row  
H
BA/RA  
ACT  
Activating  
ILLEGAL (Note 1)  
ILLEGAL  
L
L
L
L
H
L
L
BA/A10  
PRE/PREA  
REFA  
H
X
Op-Code,  
Mode-Add  
L
L
L
L
MRS  
ILLEGAL  
Remark H = High level, L = Low level, X = High or Low level (Don't care), AP = Auto Pre-charge  
Feb. 2009  
www.eorex.com  
14/24  
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