PD45128441-I Datasheet, PDF (14/89 Pages) Elpida Memory – 128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range)

3. Simplified State Diagram
µPD45128441-I, 45128841-I, 45128163-I
Mode
Register
Set
MRS
IDLE
SELF
SELF ^exit
REF
Self
Refresh
CBR (Auto)
Refresh
CKE
CKE
Power
Down
Write
BST
Write
ROW
ACTIVE
CKE
CKE
Read
BST
Active
Power
Down
Read
WRITE
SUSPEND
CKE
CKE
WRITE
Read
Write
READ
CKE
CKE
READ
SUSPEND
WRITEA
SUSPEND
CKE
CKE
WRITEA
READA
CKE
CKE
READA
SUSPEND
POWER
ON
Precharge
Precharge
Automatic sequence
Manual input
14
Preliminary Data Sheet E0233N10