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EM638325TS-10/-10G 参数 Datasheet PDF下载

EM638325TS-10/-10G图片预览
型号: EM638325TS-10/-10G
PDF下载: 下载PDF文件 查看货源
内容描述: 2M ×32同步DRAM ( SDRAM ) [2M x 32 Synchronous DRAM (SDRAM)]
分类和应用: 动态存储器
文件页数/大小: 72 页 / 761 K
品牌: ETRON [ ETRON TECHNOLOGY, INC. ]
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EtronTech  
EM638325  
2Mega x 32 SDRAM  
Figure 19.2. Full Page Write Cycle (Burst Length=Full Page, CAS# Latency=2)  
T0 T 1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T 11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22  
CLK  
tCK2  
High  
CKE  
CS#  
RAS#  
CAS#  
WE#  
BS0,1  
A10  
RAx  
RBx  
RBy  
RBy  
CBx  
RAx  
CAx  
RBx  
A0~A9  
DQM  
Hi-Z  
DAx+1  
DBx+3  
DBx DBx+1  
DQ  
DAx DAx+1 DAx+2 DAx+3 DAx-1 DAx  
DBx+2  
DBx+4 DBx+5 DBx+6  
Data is ignored  
Activate  
Command  
Bank A  
Write  
Command  
Bank A  
Activate  
Command  
Bank B  
Write  
Command  
Bank B  
Precharge  
Command  
Bank B  
Activate  
Command  
Bank B  
Full Page burst operation does  
not terminate when the burst  
length is satisfied; the burst counter  
increments and continues bursting  
beginning with the starting address.  
The burst counter wraps  
from the highest order  
page address back to zero  
during this time interval  
Burst Stop  
Command  
Preliminary  
63  
Rev 1.4  
Oct. 2005  
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