參數(shù)資料
型號: HM5425161B
廠商: Hitachi,Ltd.
英文描述: 256M SSTL_2 interface DDR SDRAM(256M SSTL_2接口 DDR 同步DRAM)
中文描述: 256M DDR SDRAM的接口SSTL_2(256M SSTL_2接口的DDR同步DRAM)的
文件頁數(shù): 27/62頁
文件大?。?/td> 1016K
代理商: HM5425161B
HM5425161B, HM5425801B, HM5425401B Series
27
Auto Precharge
Read with auto-precharge:
The precharge is automatically performed after completing a read operation.
The precharge starts t
RPD
(BL/2) cycle after READA command input. t
RCD
for READA should be determined
so that t
RC
(ACTV to ACTV) spec. is obeyed when READA is issued successively after a bank active
command, that is t
RCD
(READA)
t
RC
(min.)-t
RP
(min.)-t
RPD
. A column command to the other active bank can
be issued the next cycle after the last data output. Read with auto-precharge command does not limit row
commands execution for other bank.
D0
D1
D2
D3
CLK
CLK
DQ
Command
t
RAS
(min)
t
RP
(min)
t
RCD
(min)
ACTV
Note: Internal auto-precharge starts at the timing indicated by " ".
NOP
2 cycles (= BL/2)
READA
ACTV
DQS,
DQSU/DQSL
t
AC
,t
DQSCK
t
RPD
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HM5425161B/801B/401B 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Series 256M SSTL-2 Interface DDR SDRAM 143 MHz/133 MHz/125
HM5425161BTT-10 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M SSTL_2 interface DDR SDRAM 143 MHz/133 MHz/125 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank/ 16-Mword 】 4-bit 】 4-bank
HM5425161BTT-75A 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M SSTL_2 interface DDR SDRAM 143 MHz/133 MHz/125 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank/ 16-Mword 】 4-bit 】 4-bank
HM5425161BTT-75B 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M SSTL_2 interface DDR SDRAM 143 MHz/133 MHz/125 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank/ 16-Mword 】 4-bit 】 4-bank
HM5425401B 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:256M SSTL_2 interface DDR SDRAM 143 MHz/133 MHz/125 MHz/100 MHz 4-Mword 】 16-bit 】 4-bank/8-Mword 】 8-bit 】 4-bank/ 16-Mword 】 4-bit 】 4-bank