W9725G6JB Datasheet, PDF (34/87 Pages) Winbond – 4M  4 BANKS  16 BIT DDR2 SDRAM

W9725G6JB
Function Truth Table, continued
CURRENT
STATE
CS
RAS CAS WE _ADDRESS
COMMAND
Read with
Auto-
precharge
Write with
Auto-
precharge
Precharge
H
X
X
X
X
DSL
L
H
H
H
X
NOP
L
H
L
H BA, CA, A10 READ/READA
L
H
L
L BA, CA, A10 WRIT/WRITA
L
L
H
H BA, RA
ACT
L
L
H
L BA, A10
PRE/PREA
L
L
L
H
X
AREF/SELF
L
L
L
L Op-Code
MRS/EMRS
H
X
X
X
X
DSL
L
H
H
H
X
NOP
L
H
L
H BA, CA, A10 READ/READA
L
H
L
L BA, CA, A10 WRIT/WRITA
L
L
H
H BA, RA
ACT
L
L
H
L BA, A10
PRE/PREA
L
L
L
H
X
AREF/SELF
L
L
L
L Op-Code
MRS/EMRS
H
X
X
X
X
DSL
L
H
H
H
X
NOP
L
H
L
H BA, CA, A10 READ/READA
L
H
L
L BA, CA, A10 WRIT/WRITA
L
L
H
H BA, RA
ACT
L
L
H
L BA, A10
PRE/PREA
L
L
L
H
X
AREF/SELF
L
L
L
L Op-Code
MRS/EMRS
H
X
X
X
X
DSL
L
H
H
H
X
NOP
L
H
L
H BA, CA, A10 READ/READA
Row
L
H
L
L BA, CA, A10 WRIT/WRITA
Activating
L
L
H
H BA, RA
ACT
L
L
H
L BA, A10
L
L
L
H
X
PRE/PREA
AREF/SELF
L
L
L
L Op-Code
MRS/EMRS
ACTION
Continue burst to end
Continue burst to end
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Continue burst to end
Continue burst to end
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
NOP-> Idle after tRP
NOP-> Idle after tRP
ILLEGAL
ILLEGAL
ILLEGAL
NOP-> Idle after tRP
ILLEGAL
ILLEGAL
NOP-> Row active after tRCD
NOP-> Row active after tRCD
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
NOTES
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
- 34 -
Publication Release Date: Nov. 29, 2011
Revision A02