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VG4632321AQ-7 参数 Datasheet PDF下载

VG4632321AQ-7图片预览
型号: VG4632321AQ-7
PDF下载: 下载PDF文件 查看货源
内容描述: 524,288x32x2位CMOS同步图形RAM [524,288x32x2-Bit CMOS Synchronous Graphic RAM]
分类和应用:
文件页数/大小: 81 页 / 1954 K
品牌: VML [ VANGUARD INTERNATIONAL SEMICONDUCTOR ]
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Preliminary  
VG4632321A  
524,288x32x2-Bit  
CMOS Synchronous Graphic RAM  
VIS  
Figure 4. Power on Sequence and Auto Refresh (CBR)  
T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 T10 T11 T12 T13 T14 T15 T16 T17 T18 T19 T20 T21 T22  
CLK  
t
CK2  
High level  
is required  
CKE  
Minimum of 8 Refresh cycles are required  
2 Clock min.  
CS  
RAS  
CAS  
WE  
DSF  
BS  
A9  
Address Key  
A0 ~ A8  
DQM  
DQ  
t
t
RC  
RP  
Hi-Z  
2nd Auto Refresh  
Command  
Mode Register  
Set Command  
Any  
Command  
Precharge All  
Command  
1st Auto Refresh  
Command  
Inputs must be  
stable for 200 us  
Document:  
Rev.1  
Page4  
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