EDS5104ABTA Datasheet, PDF (23/52 Pages) Elpida Memory – 512M bits SDRAM

Simplified State Diagram
EDS5104ABTA, EDS5108ABTA, EDS5116ABTA
SELF
REFRESH
SR ENTRY
SR EXIT
MODE
REGISTER
SET
MRS
IDLE
REFRESH
*1
AUTO
REFRESH
CKE
CKE_
ACTIVE
CLOCK
SUSPEND
CKE
CKE_
ACTIVE
ROW
BST
ACTIVE
IDLE
POWER
DOWN
BST
Write
WRITE
CKE_
WRITE
SUSPEND
CKE
WRITE
WRITE
WITH AP
WRITE
WITH
AP
READ
READ
WITH AP
READ
WITH
AP
READ
Read
CKE_
WRITE
WRITE
WITH AP
READ
CKE
READ
WITH AP
READ
SUSPEND
CKE_
WRITEA
SUSPEND
CKE
WRITEA
PRECHARGE
READA
PRECHARGE PRECHARGE
CKE_
READA
SUSPEND
CKE
POWER
APPLIED
POWER
PRECHARGE
ON
PRECHARGE
Automatic transition after completion of command.
Transition resulting from command input.
Note: 1. After the auto-refresh operation, precharge operation is performed automatically and
enter the IDLE state.
Preliminary Data Sheet E0250E10 (Ver. 1.0)
23