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HD6417750SBP200 参数 Datasheet PDF下载

HD6417750SBP200图片预览
型号: HD6417750SBP200
PDF下载: 下载PDF文件 查看货源
内容描述: 的SuperH RISC引擎 [SuperH RISC engine]
分类和应用: 外围集成电路时钟
文件页数/大小: 1039 页 / 6201 K
品牌: RENESAS [ RENESAS TECHNOLOGY CORP ]
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Basic Timing: The basic timing for DRAM access is 4 cycles. This basic timing is shown in  
figure 13.17. Tpc is the precharge cycle, Tr the 5$6 assert cycle, Tc1 the &$6 assert cycle, and  
Tc2 the read data latch cycle.  
Tr1  
Tr2  
Tc1  
Tc2  
Tpc  
CKIO  
A25–A0  
Row  
Column  
RD/  
D63–D0  
(read)  
D63–D0  
(write)  
DACKn  
(SA: IO memory)  
DACKn  
(SA: IO memory)  
Note: For DACKn, an example is shown where CHCRn.AL (access level) = 0 for the DMAC.  
Figure 13.17 Basic DRAM Access Timing  
Rev. 6.0, 07/02, page 400 of 986  
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