參數(shù)資料
型號(hào)： V85C2256164SAS8
廠商： MOSEL-VITELIC
元件分類： DRAM
英文描述： 16M X 16 DDR DRAM, 0.8 ns, PBGA60
封裝： 0.80 X 1 MM PITCH, SOC, BGA-60
文件頁(yè)數(shù)： 44/61頁(yè)
文件大?。?/td> 814K
代理商： V85C2256164SAS8
49
MOSEL VITELIC
V58C2256(804/404/164)S
V58C2256(804/404/164)S Rev. 1.4 October 2002
Figure 38 - INITIALIZE AND MODE REGISTER SETS
CKE
LVCMOS LOW LEVEL
DQ
BA0, BA1
200 cycles of CLK**
Extended
Mode
Register
Set
Load
Mode
Register,
Reset DLL
(with A8 = H)
Load
Mode
Register
(with A8 = L)
tMRD
tRP
tRFC
t IS
Power-up:
VDD and
CLK stable
T = 200
s
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tIH
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DM
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DQS
High-Z
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A0-A9, A11
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A10
ALL BANKS
DON'T CARE
CK
/CK
tCK
tCH
tCL
VTT
(system*)
t VTD
VREF
VDD
VDDQ
COMMAND
MRS
NOP
PRE
EMRS
AR
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AR
tIS tIH
BA0=H,
BA1=L
tIS tIH
BA0=L,
BA1=L
tIS tIH
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CODE
tIS tIH
CODE
MRS
BA0=L,
BA1=L
CODE
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PRE
ALL BANKS
tIS tIH
RA
ACT
BA
* = VTT is not applied directly to the device, however tVTD must be greater than or equal to zero to avoid device latch-up.
** = tMRD is required before any command can be applied, and 200 cycles of CK are required before a READ command can be applied.
The two Auto Refresh commands may be moved to follow the first MRS, but precede the second PRECHARGE ALL command.
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CODE
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