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ESMT
Current
CS
RAS
State
H
X
Read with
L
H
Auto
L
H
Precharge
L
H
L
L
L
L
L
L
H
X
L
H
Row
L
H
Activating
L
H
L
L
L
L
L
L
H
X
L
H
Refreshing
L
H
L
L
L
L
H
X
Mode
L
H
Register
L
H
Accessing
L
H
L
L
Abbreviations :
RA = Row Address
NOP = No Operation Command
*Note : 1. All entries assume the CKE was active (High) during the precharge clock and the current clock cycle.
2. Illegal to bank in specified state ; Function may be legal in the bank indicated by BA, depending on the state of the
bank.
3. Must satisfy bus contention, bus turn around, and/or write recovery requirements.
4. NOP to bank precharge or in idle state. May precharge bank indicated by BA (and A10/AP).
5. Illegal if any bank is not idle.
Elite Semiconductor Memory Technology Inc.
BA
CAS
WE
X
X
X
H
H
X
H
L
X
L
X
BA
H
H
BA
H
L
BA
L
X
X
X
X
X
H
H
X
H
L
X
L
X
BA
H
H
BA
H
L
BA
L
X
X
X
X
X
H
X
X
L
X
X
H
X
X
L
X
X
X
X
X
H
H
X
H
L
X
L
X
X
X
X
X
ADDR
X
NOP
Idle after tRP
X
NOP
Idle after tRP
X
ILLEGAL
CA
ILLEGAL
RA
ILLEGAL
A10/AP
NOP
Idle after tRPL
X
ILLEGAL
X
NOP
Row Active after tRCD
X
NOP
Row Active after tRCD
X
ILLEGAL
CA
ILLEGAL
RA
ILLEGAL
A10/AP
ILLEGAL
X
ILLEGAL
X
NOP
Idle after tRFC
X
NOP
Idle after tRFC
X
ILLEGAL
X
ILLEGAL
X
ILLEGAL
X
NOP
Idle after 2clocks
X
NOP
Idle after 2clocks
X
ILLEGAL
X
ILLEGAL
X
ILLEGAL
BA = Bank Address
CA = Column Address
M12L64164A
ACTION
AP = Auto Precharge
Publication Date: May 2008
Revision: 3.3
Note
2
2
2
4
2
2
2
2
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