參數(shù)資料
型號: MB81116422A-67
廠商: Fujitsu Limited
英文描述: CMOS 2×2M ×4 BIT Hyper Page Mode Dynamic RAM(CMOS 2×2M ×4 位超級頁面存取模式動態(tài)RAM)
中文描述: 的CMOS 2 × 200萬× 4位超頁模式動態(tài)RAM(2 × 200萬的CMOS × 4位超級頁面存取模式動態(tài)內(nèi)存)
文件頁數(shù): 6/43頁
文件大?。?/td> 275K
代理商: MB81116422A-67
6
MB81116422A-125/-100/-84/-67
DQM TRUTH TABLE
CKE TRUTH TABLE
Notes:
*1.
*2.
The CSUS command requires that at least one bank is active. Refer to STATE DIAGRAM.
REF and SELF commands should only be issued after all banks have been precharged (PRE or PALL
command). Refer to STATE DIAGRAM.
PD command should be issud after all banks have been precharged (PRE or PALL command). If a
bank or all banks are in active state, PD command can be issued in conjuction with PRE or PALL
command whichever Precharge command makes all banks in idle state.
*3.
Function
Command
CKE
DQM
n-1
n
Data Write / Output Enable
ENBL
H
X
L
Data Mask / Output Disable
MASK
H
X
H
Current
State
Function
Notes
Symbol
CKE
CS
RAS
CAS
WE
A
(BA)
A
(AP)
A
9 to
A
0
n-1
n
Bank Active
Clock Suspend
Mode Entry
*1
CSUS
H
L
X
X
X
X
X
X
X
Any
Clock Suspend
Continue
*1
L
L
X
X
X
X
X
X
X
Clock
Suspend
Clock Suspend
Mode Exit
L
H
X
X
X
X
X
X
X
Idle
Auto-refresh
Command
*2
REF
H
H
L
L
L
H
X
X
X
Idle
Self-refresh
Entry
*2
SELF
H
L
L
L
L
H
X
X
X
Self Refresh
Self-refresh Exit
SELFX
L
H
L
H
H
H
X
X
X
L
H
H
X
X
X
X
X
X
Idle
Power Down
Entry
PD
H
L
L
H
H
H
X
X
X
H
L
H
X
X
X
X
X
X
Precharge
Power Down
Entry
PD
H
L
L
H
H
H
X
X
X
H
L
H
X
X
X
X
X
X
Back Active
Power Down
Entry
*3
PD
H
L
L
L
H
L
V
L
X
H
L
L
L
H
L
X
H
X
Power Down
Power Down Exit
L
H
L
H
H
H
X
X
X
L
H
H
X
X
X
X
X
X
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