W989D6DB Datasheet, PDF (12/64 Pages) Winbond – Standard Self Refresh Mode

W989D6DB / W989D2DB
Current
State
CS RAS CAS W E ^Address
Command
Action
Notes
H
X
X
X
X
DSL
Continue burst to end
L
H
H
H
X
NOP
Continue burst to end
L
H
H
L
X
BST
ILLEGAL
Read with
L
H
L
H BA, CA, A10 READ/READA ILLEGAL
3
auto
L
H
L
L BA, CA, A10 WRIT/WRITA ILLEGAL
3
precharge
L
L
H
H
BA, RA
ACT
ILLEGAL
3
L
L
H
L
BA, A10
PRE/PREA
ILLEGAL
3
L
L
L
H
X
AREF/SELF ILLEGAL
L
L
L
L
Op-Code
MRS/EMRS ILLEGAL
H
X
X
X
X
DSL
Continue burst to end
L
H
H
H
X
NOP
Continue burst to end
L
H
H
L
X
BST
ILLEGAL
Write with
L
H
L
H BA, CA, A10 READ/READA ILLEGAL
3
auto
L
H
L
L BA, CA, A10 WRIT/WRITA ILLEGAL
3
precharge
L
L
H
H
BA, RA
ACT
ILLEGAL
3
L
L
H
L
BA, A10
PRE/PREA
ILLEGAL
3
L
L
L
H
X
AREF/SELF ILLEGAL
L
L
L
L
Op-Code
MRS/EMRS ILLEGAL
H
X
X
X
X
DSL
Nop → Idle after t_RP
L
H
H
H
X
NOP
Nop → Idle after t_RP
L
H
H
L
X
BST
ILLEGAL
L
H
L
H BA, CA, A10 READ/READA ILLEGAL
3
Precharging L
H
L
L BA, CA, A10 WRIT/WRITA ILLEGAL
3
L
L
H
H
BA, RA
ACT
ILLEGAL
3
L
L
H
L
BA, A10
PRE/PREA
Nop → Idle after t_RP
L
L
L
H
X
AREF/SELF ILLEGAL
L
L
L
L
Op-Code
MRS/EMRS ILLEGAL
H
X
X
X
X
DSL
Nop → Row active after t_RCD
L
H
H
H
X
NOP
Nop → Row active after t_RCD
L
H
H
L
X
BST
ILLEGAL
L
H
L
H BA, CA, A10 READ/READA ILLEGAL
3
Row
activating
L
H
L
L BA, CA, A10 WRIT/WRITA ILLEGAL
3
L
L
H
H
BA, RA
ACT
ILLEGAL
3
L
L
H
L
BA, A10
PRE/PREA
ILLEGAL
3
L
L
L
H
X
AREF/SELF ILLEGAL
L
L
L
L
Op-Code
MRS/EMRS ILLEGAL
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Publication Release Date: Mar. 19, 2014
Revision: A01-001