ESMT
M14D5121632A (2H)
Operation Temperature Condition (TC) -40°C~95°C
Current State
Address
Command
DESEL
Action
CS RAS CAS
WE
X
H
L
L
L
L
L
L
L
H
L
X
H
H
H
L
X
H
L
X
X
NOP (Bank Active after tWR
NOP (Bank Active after tWR
ILLEGAL (*1, 6)
)
H
H
L
NOP
)
BA, CA, A10
READ / READA
WRITE / WRITEA
Active
L
BA, CA, A10
WRITE / WRITEA
WRITE
RECOVERING
H
H
L
H
L
BA, RA
ILLEGAL (*1)
L
BA, A10 / A10
PRE / PREA
Refresh
ILLEGAL (*1) / ILLEGAL
ILLEGAL
L
H
L
X
L
L
Op-Code Mode-Add
MRS / EMRS
DESEL
ILLEGAL
X
H
X
H
X
X
X
NOP (Bank Active after tWR
)
)
H
NOP
NOP (Bank Active after tWR
WRITE
RECOVERING
with
READ / READA /
WRITE / WRITEA
L
H
L
X
BA, CA, A10
ILLEGAL (*1)
L
L
L
L
H
L
L
L
H
H
L
H
L
BA, RA
Active
ILLEGAL (*1)
ILLEGAL (*1) / ILLEGAL
ILLEGAL
AUTO
PRECHARGE
BA, A10 / A10
PRE / PREA
Refresh
L
H
L
X
L
L
Op-Code Mode-Add
MRS / EMRS
DESEL
ILLEGAL
X
H
X
H
X
H
X
X
NOP (Idle after tRFC
)
)
NOP
NOP (Idle after tRFC
READ / READA /
WRITE / WRITEA
L
H
L
X
BA, CA, A10
ILLEGAL
REFRESH
L
L
L
L
H
L
L
L
H
H
L
H
L
BA, RA
Active
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
BA, A10 / A10
PRE / PREA
Refresh
L
H
L
X
L
L
Op-Code Mode-Add
MRS / EMRS
DESEL
X
H
X
H
X
H
X
X
NOP (Idle after tMRD
)
)
NOP
NOP (Idle after tMRD
READ / READA /
WRITE / WRITEA
L
H
L
X
BA, CA, A10
ILLEGAL
(Extended)
MODE
REGISTER
SETTING
L
L
L
L
L
L
L
L
H
H
L
H
L
BA, RA
Active
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
BA, A10 / A10
PRE / PREA
Refresh
H
L
X
L
Op-Code Mode-Add
MRS / EMRS
H = High Level, L = Low level, X = Don’t Care
BA = Bank Address, RA =Row Address, CA = Column Address, NOP = No Operation
ILLEGAL = Device operation and / or data integrity are not guaranteed.
Note:
1. This command may be issued for other banks, depending on the state of the banks.
2. All banks must be in “IDLE”.
3. All AC timing specs must be met.
4. Only allowed at the boundary of 4 bits burst. Burst interruption at other timings is illegal.
5. Available in case tRCD is satisfied by AL setting.
6. Available in case tWTR is satisfied.
Elite Semiconductor Memory Technology Inc.
Publication Date : Aug. 2011
Revision : 1.1 58/62
ESMT [ ELITE SEMICONDUCTOR MEMORY TECHNOLOGY INC. ]
