欢迎访问ic37.com |
会员登录 免费注册
发布采购

EM68C08CWAE-3H 参数 Datasheet PDF下载

EM68C08CWAE-3H图片预览
型号: EM68C08CWAE-3H
PDF下载: 下载PDF文件 查看货源
内容描述: [128M x 8 bit DDRII 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: 63 页 / 512 K
品牌: ETRON [ ETRON TECHNOLOGY, INC. ]
 浏览型号EM68C08CWAE-3H的Datasheet PDF文件第55页浏览型号EM68C08CWAE-3H的Datasheet PDF文件第56页浏览型号EM68C08CWAE-3H的Datasheet PDF文件第57页浏览型号EM68C08CWAE-3H的Datasheet PDF文件第58页浏览型号EM68C08CWAE-3H的Datasheet PDF文件第59页浏览型号EM68C08CWAE-3H的Datasheet PDF文件第60页浏览型号EM68C08CWAE-3H的Datasheet PDF文件第61页浏览型号EM68C08CWAE-3H的Datasheet PDF文件第63页  
EtronTech  
EM68C08CWAE  
Figure 59. Asynchronous CKE LOW event  
Stable clocks  
tCK  
CK#  
CK  
CKE  
tDelay  
tIS  
CKE asynchronously drops LOW  
Clocks can be turned off after this point  
Figure 60. Clock frequency change in precharge power down mode  
T0  
T1  
T2  
T4  
Tx  
Tx+1  
Ty  
Ty+1  
Ty+2  
Ty+3  
Ty+4  
Tz  
CK#  
CK  
DLL  
RESET  
CMD  
CKE  
ODT  
NOP  
NOP  
NOP  
NOP  
NOP  
Valid  
Frequency Change Occurs here  
200 Clocks  
tIS  
tIS  
tXP  
tRP  
tAOFD  
tIH  
ODT is off during DLL RESET  
Minimum 2 clocks required before  
changing frequency  
Stable new clock before power  
down exit  
Rev. 1.3  
62  
Oct. /2015  
 复制成功!