參數(shù)資料
型號: K4C89183AF
廠商: SAMSUNG SEMICONDUCTOR CO. LTD.
英文描述: 288Mb x18 Network-DRAM2 Specification
中文描述: 288Mb x18網(wǎng)絡DRAM2規(guī)范
文件頁數(shù): 21/55頁
文件大小: 1470K
代理商: K4C89183AF
K4C89183AF
- 21 -
REV. 0.7 Jan. 2005
Auto-Refresh Command Table
Function
Command
(Symbol)
Current
State
PD
CS
FN
BA1-BA0 A14-A9
A8
A7
A6-A0
Notes
n-1
n
Active
WRA(1st)
Standby
H
H
L
L
X
X
X
X
X
Auto-Refresh
REF(2nd)
Active
H
H
L
X
X
X
X
X
X
Power Down Table
Notes :
7. PD has to be brought to Low within t
FPDL
from REF command.
8. PD should be brought to Low after DQ’s state turned high impedance.
9. When PD is brought to High from Low, this function is executed asynchronously.
Function
Command
(Symbol)
Current
State
PD
CS
FN
BA1-
BA0
A14-A9
A8
A7
A6-A0
Notes
n-1
n
Power Down Entry
PDEN
Standby
H
L
H
X
X
X
X
X
X
8
Power Down Continue
-
Power Down
L
L
X
X
X
X
X
X
X
Power Down Exit
PDEX
Power Down
L
H
H
X
X
X
X
X
X
9
Mode Register Set Command Truth Table
Note :
6. Refer to "Mode Register Table".
Command (Symbol)
CS
FN
BA1-BA0
A14-A9
A8
A7
A6-A0
Notes
RDA (1st)
L
H
X
X
X
X
X
MRS (2nd)
L
X
V
L
L
V
V
6
Function Truth Table (Continued)
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