欢迎访问ic37.com |
会员登录 免费注册
发布采购

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 ]
 浏览型号EM42BM3284LBA_09的Datasheet PDF文件第9页浏览型号EM42BM3284LBA_09的Datasheet PDF文件第10页浏览型号EM42BM3284LBA_09的Datasheet PDF文件第11页浏览型号EM42BM3284LBA_09的Datasheet PDF文件第12页浏览型号EM42BM3284LBA_09的Datasheet PDF文件第14页浏览型号EM42BM3284LBA_09的Datasheet PDF文件第15页浏览型号EM42BM3284LBA_09的Datasheet PDF文件第16页浏览型号EM42BM3284LBA_09的Datasheet PDF文件第17页  
eorex  
EM42BM3284LBA  
3. Operative Command Table  
Current  
State  
/CS /R /C /W  
Addr.  
Command  
Action  
H
L
L
L
X
H
H
H
X
H
H
L
X
H
L
X
X
X
DESL  
NOP  
NOP  
NOP  
NOP  
TERM  
ILLEGAL (Note 1)  
Bank active,Latch RA  
NOP(Note 3)  
X
BA/CA/A10 READ/WRIT/BW  
Idle  
L
L
L
L
L
L
H
H
L
H
L
BA/RA  
BA, A10  
X
ACT  
PRE/PREA  
REFA  
Auto refresh(Note 4)  
H
Op-Code,  
Mode-Add  
L
L
L
L
MRS  
Mode register  
H
L
X
H
X
H
X
H
X
X
DESL  
NOP  
NOP  
NOP  
Begin read,Latch CA,  
Determine auto-precharge  
Begin write,Latch CA,  
L
L
H
H
H
L
L
L
BA/CA/A10  
BA/CA/A10  
READ/READA  
WRIT/WRITA  
Row  
Determine auto-precharge  
Active  
ILLEGAL (Note 1)  
Precharge/Precharge all  
ILLEGAL  
L
L
L
L
L
L
H
H
L
H
L
BA/RA  
BA/A10  
X
ACT  
PRE/PREA  
REFA  
H
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)  
Terminal burst  
Terminate burst,Latch CA,  
Begin new read,  
L
H
L
H
H
BA/CA/A10  
READ/READA  
Read  
Determine Auto-precharge  
ILLEGAL (Note 1)  
L
L
H
BA/RA  
ACT  
L
L
L
L
H
L
L
BA, A10  
PRE/PREA  
REFA  
Terminate burst, PrecharE  
ILLEGAL  
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  
Terminate burst with DM=”H”,Latch  
CA,Begin read,Determine  
auto-precharge (Note 2)  
L
L
H
H
L
L
H
L
BA/CA/A10  
BA/CA/A10  
READ/READA  
WRIT/WRITA  
Terminate burst,Latch CA,Begin  
new write, Determine  
auto-precharge (Note 2)  
ILLEGAL (Note 1)  
Write  
L
L
L
L
H
H
H
L
BA/RA  
ACT  
Terminate burst with DM=”H”,  
BA, A10  
PRE/PREA  
Precharge  
ILLEGAL  
ILLEGAL  
L
L
L
L
L
L
H
L
X
REFA  
MRS  
Op-Code,  
Feb. 2009  
www.eorex.com  
13/24  
 复制成功!