W9864G2JH_13 Datasheet, PDF (13/43 Pages) Winbond – 512K x 4 BANKS x 32BITS SDRAM

W9864G2JH
8.1 Simplified Stated Diagram
Mode
Reg ister
Set
MRS
IDLE
Self
Refresh
SELF
SELF
exit
REF
CBR
Refresh
CKE
CKE
Power
Down
Write
WRITE
SUSPEND
CKE
CKE
WRITE
ROW
ACTIVE
CKE
CKE
Active
Power
Down
Read
Write
READ
Read
CKE
CKE
READ
SUSPEND
WRITEA
SUSPEND
CKE
CKE
WRITEA
READA
CKE
CKE
READA
SUSPEND
POWER
ON
Pr echar g e
Pr echar g e
MRS = Mode Register Set
REF = Refresh
ACT = Active
PRE = Precharge
WRITEA = Write with Auto-precharge
READA = Read with Auto-precharge
Automatic sequence
Manual input
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Publication Release Date: Oct. 07, 2013
Revision A02