參數(shù)資料
型號: HM5225805B
廠商: Hitachi,Ltd.
英文描述: 256M LVTTL interface SDRAM(256M LVTTL接口同步DRAM)
中文描述: 256M LVTTL接口的SDRAM(256M LVTTL接口同步的DRAM)
文件頁數(shù): 26/64頁
文件大?。?/td> 802K
代理商: HM5225805B
HM5225165B/HM5225805B/HM5225405B-75/A6/B6
26
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 l
APW
is required between the final valid data input and input of
next command.
Burst Write (Burst Length = 4)
CLK
Command
DQ (input)
l
APW
I
RAS
ACTV
WRIT A
in0
in1
in2
in3
ACTV
Note: Internal auto-precharge starts at the timing indicated by " ".
and an interval of t
RAS
(l
RAS
) is required between previous active (ACTV) command
and internal precharge " ".
Single Write
CLK
Command
DQ (input)
l
APW
I
RAS
ACTV
WRIT A
in
ACTV
Note: Internal auto-precharge starts at the timing indicated by " ".
and an interval of t
RAS
(l
RAS
) is required between previous active (ACTV) command
and internal precharge " ".
相關PDF資料
PDF描述
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HM5257405BTD-75 512M LVTTL interface SDRAM 133 MHz/100 MHz 8-Mword 】 16-bit 】 4-bank/16-Mword 】 8-bit 】 4-bank /32-Mword 】 4-bit 】 4-bank PC/133, PC/100 SDRAM
相關代理商/技術參數(shù)
參數(shù)描述
HM5225805B-75 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述: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
HM5225805B-A6 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述: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
HM5225805B-B6 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述: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
HM5225805BLTT-75 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述: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
HM5225805BLTT-A6 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述: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