EDE5104GASA Datasheet, PDF (19/45 Pages) Elpida Memory – 512M bits DDR-II SDRAM

EDE5104GASA, EDE5108GASA
Simplified State Diagram
Power
Applied
POWER
ON
PRECHARGE
PREALL
MRS
E EMRS
MRS
*NOTE
O _ACTIVE
POWER
L^DOWN
REFS
SELF
REFRESH
IDLE
REFSX
REFA
AUTO
REFRESH
CKEH
CKEL
ACT
PRECHARGE
POWER
DOWN
CKEH
CKEL
P_WRITE
WRITE
ROW
ACTIVE
READ
WRITA
READA
READ
READ
r _WRITA
o _WRITA
READA
PRECHARGE
PRECHARGE
PRECHARGE
READA
READA
d _PRECHARGE
PRECHARGE
PREALL
Automatic sequence
Command sequence
u _{*Note : Except drive mode activated by EMRS, drive mode should be deactivated by}
EMRS to move to an idle state.
ct ^{Simplified State Diagram}
Preliminary Data Sheet E0203E41 (Ver. 4.1)
19