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EM68932DVKB-6H 参数 Datasheet PDF下载

EM68932DVKB-6H图片预览
型号: EM68932DVKB-6H
PDF下载: 下载PDF文件 查看货源
内容描述: 4M ×32的移动DDR同步DRAM (SDRAM)的 [4M x 32 Mobile DDR Synchronous DRAM (SDRAM)]
分类和应用: 动态存储器双倍数据速率
文件页数/大小: 40 页 / 342 K
品牌: ETRON [ ETRON TECHNOLOGY, INC. ]
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EM68932DVKB  
EtronTech  
Figure 20. Read to precharge  
CK  
CK  
READ  
NOP  
PRE  
NOP  
NOP  
ACT  
Command  
Address  
Bank  
(a or all)  
BA, Col n  
BA, Row  
CL = 2  
CL = 3  
tRP  
DQS  
DQ  
DO n  
DQS  
DQ  
DO n  
Don’t Care  
(1) DO n = Data Out from column n  
(2) Cases shown are either uninterrupted burst of 4, or interrupted bursts of 8.  
(3) Shown with nominal tAC, tDQSCK and tDQSQ.  
(4) Precharge may be applied at (BL/2) tCK after the READ command.  
(5) Note that Precharge may not be issued before tRAS ns after the ACTIVE command for applicable banks.  
(6) The ACTIVE command may be applied if tRC has been met.  
Figure 21. Burst Terminate Command  
CK  
CK  
(High)  
CKE  
CS  
RAS  
CAS  
WE  
A0-A11  
BA0,BA1  
Don’t Care  
Etron Confidential  
29  
Rev. 1.0  
Aug. 2009  
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