參數(shù)資料
型號: HY5DU56422DLT
廠商: Hynix Semiconductor Inc.
英文描述: 256Mb DDR SDRAM
中文描述: 256Mb的DDR SDRAM內(nèi)存
文件頁數(shù): 13/29頁
文件大?。?/td> 236K
代理商: HY5DU56422DLT
Rev. 1.0 /Oct. 2004
13
HY5DU56422D(L)T
HY5DU56822D(L)T
HY5DU561622D(L)T
7.
Issue 2 or more Auto Refresh commands.
8.
Issue a Mode Register Set command to initialize the mode register with bit A8 = Low
Power-Up Sequence
CODE
CODE
CODE
CODE
CODE
CODE
CODE
CODE
CODE
CODE
CODE
CODE
CODE
CODE
CODE
NOP
PRE
MRS
EMRS
PRE
NOP
MRS
AREF
ACT
RD
VDD
VDDQ
VTT
VREF
/ CLK
CLK
CKE
CMD
DM
ADDR
A10
BA0, BA1
DQS
DQ'S
LVCMOS Low Level
tIS tIH
tVTD
T= 200usec
tRP
tMRD
tRP
tRFC
tMRD
tXSRD*
READ
Non-Read
Command
Power UP
VDD and CK stable
Precharge All
EMRS Set
MRS Set
Reset DLL
(with A8= H)
Precharge All
2 or more
Auto Refresh
MRS Set
(with A8= L)
* 200 cycle(tXSRD) of CK are required (for DLL locking) before Read Command
tMRD
相關PDF資料
PDF描述
HY5DU56422DT 256Mb DDR SDRAM
HY5DU56822DLT 256Mb DDR SDRAM
HY5DU56822DT 256Mb DDR SDRAM
HY5DU56422BT-D4 256M-P DDR SDRAM
HY5DU56822BT-D 256M-P DDR SDRAM
相關代理商/技術參數(shù)
參數(shù)描述
HY5DU56422DLTP 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:256M DDR SDRAM (268,435,456-bit CMOS Double Data Rate(DDR) Synchronous DRAM)
HY5DU56422DLTP-H 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:256M DDR SDRAM (268,435,456-bit CMOS Double Data Rate(DDR) Synchronous DRAM)
HY5DU56422DLTP-J 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:256M DDR SDRAM (268,435,456-bit CMOS Double Data Rate(DDR) Synchronous DRAM)
HY5DU56422DLTP-K 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:256M DDR SDRAM (268,435,456-bit CMOS Double Data Rate(DDR) Synchronous DRAM)
HY5DU56422DLTP-L 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:256M DDR SDRAM (268,435,456-bit CMOS Double Data Rate(DDR) Synchronous DRAM)