EDS6432AFBH Datasheet, PDF (20/49 Pages) Elpida Memory – 64M bits SDRAM (2M words x 32 bits)

Simplified State Diagram
EDS6432AFBH, EDS6432CFBH
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.
Data Sheet E0497E20 (Ver. 2.0)
20