參數(shù)資料
型號: HY5DU121622CTP-4
廠商: HYNIX SEMICONDUCTOR INC
元件分類: DRAM
英文描述: 512Mb(32Mx16) GDDR SDRAM
中文描述: 32M X 16 DDR DRAM, 0.7 ns, PDSO66
封裝: 0.400 X 0.875 INCH, 0.65 MM PITCH, TSOP2-66
文件頁數(shù): 16/29頁
文件大小: 233K
代理商: HY5DU121622CTP-4
Rev. 0.3 / Apr. 2005
16
1
HY5DU121622CTP
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
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