參數(shù)資料
型號: MB81117822A-125
廠商: Fujitsu Limited
英文描述: CMOS 2×1M ×8 Bit Synchronous Dynamic RAM(CMOS 2×1M ×8 位同步動態(tài)RAM)
中文描述: 的CMOS 2 × 100萬× 8位同步動態(tài)隨機(jī)存儲器(2 × 100萬的CMOS × 8位同步動態(tài)RAM)的
文件頁數(shù): 7/43頁
文件大小: 275K
代理商: MB81117822A-125
7
MB81117822A-125/-100/-84/-67
OPERATION COMMAND TABLE (Applicable to single bank)
(Continued)
Current
State
CS
RAS CAS
WE
Addr
Command
Function
Notes
Idle
H
X
X
X
X
DESL
NOP
L
H
H
H
X
NOP
NOP
L
H
H
L
X
BST
NOP
L
H
L
H
BA, CA, AP
READ/READA
Illegal
L
H
L
L
BA, CA, AP
WRIT/WRITA
Illegal
L
L
H
H
BA, RA
ACTV
Bank Active after t
RCD
L
L
H
L
BA, AP
PRE/PALL
NOP
L
L
L
H
X
REF/SELF
Auto-refresh or Self-refresh
*3
L
L
L
L
MODE
MRS
Mode Register Set (Idle after t
RSC
)
*3
Bank Active
H
X
X
X
X
DESL
NOP
L
H
H
H
X
NOP
NOP
L
H
L
H
BA, CA, AP
READ/READA
Begin Read: Determine AP
L
H
H
L
X
BST
NOP
L
H
L
L
BA, CA, AP
WRIT/WRITA
Begin Write: Determine AP
L
L
H
H
BA, RA
ACTV
Illegal
*2
L
L
H
L
BA, AP
PRE/PALL
Precharge: Determine Precharge Type
L
L
L
H
X
REF/SELF
Illegal
L
L
L
L
MODE
MRS
Illegal
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