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HM5225805BLTT-75 参数 Datasheet PDF下载

HM5225805BLTT-75图片预览
型号: HM5225805BLTT-75
PDF下载: 下载PDF文件 查看货源
内容描述: LVTTL 256M SDRAM接口的133 MHz / 100 MHz的4 Mword 】 16位】 4银行/ 8 - Mword 】 8位】 4银行/ 16 Mword 】 4位】 4银行PC / 133 , PC / 100 SDRAM [256M LVTTL interface SDRAM 133 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank /16-Mword 】 4-bit 】 4-bank PC/133, PC/100 SDRAM]
分类和应用: 存储内存集成电路光电二极管动态存储器PC时钟
文件页数/大小: 63 页 / 454 K
品牌: ELPIDA [ ELPIDA MEMORY ]
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HM5225165B/HM5225805B/HM5225405B-75/A6/B6  
Write with auto-precharge: In this operation, since precharge is automatically performed after completing  
a burst write or single write operation, a precharge command need not be executed after each write operation.  
The command executed for the same bank after the execution of this command must be the bank active  
(ACTV) command. In addition, an interval of lAPW is required between the final valid data input and input of  
next command.  
Burst Write (Burst Length = 4)  
CLK  
WRIT A  
ACTV  
ACTV  
Command  
DQ (input)  
IRAS  
in0 in1 in2 in3  
lAPW  
Note: Internal auto-precharge starts at the timing indicated by " ".  
and an interval of tRAS (lRAS) is required between previous active (ACTV) command  
and internal precharge " ".  
Single Write  
CLK  
WRIT A  
ACTV  
ACTV  
Command  
IRAS  
DQ (input)  
in  
lAPW  
Note: Internal auto-precharge starts at the timing indicated by " ".  
and an interval of tRAS (lRAS) is required between previous active (ACTV) command  
and internal precharge " ".  
Data Sheet E0082H10  
26  
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