參數(shù)資料
型號(hào): HY5DU56422CT-D43
廠商: HYNIX SEMICONDUCTOR INC
元件分類: DRAM
英文描述: 256M-P DDR SDRAM
中文描述: 64M X 4 DDR DRAM, 0.65 ns, PDSO66
封裝: 0.400 X 0.875 INCH, 0.65 MM PITCH, TSOP2-66
文件頁(yè)數(shù): 17/34頁(yè)
文件大?。?/td> 248K
代理商: HY5DU56422CT-D43
Rev. 0.3 / Oct. 2003 17
HY5DU56422CT-D4/ D43
HY5DU56822CT-D4/ D43
HY5DU561622CT-D4/ D43
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(guān)PDF資料
PDF描述
HY5DU56822CT-D 256M-P DDR SDRAM
HY5DU56822CT-D4 256M-P DDR SDRAM
HY5DU56822CT-D43 256M-P DDR SDRAM
HY5DU561622CT-D 256M-P DDR SDRAM
HY5PS1G1631CFP 1Gb DDR2 SDRAM
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