HB52R329E22-F Datasheet, PDF (32/66 Pages) Elpida Memory – 256 MB Registered SDRAM DIMM 32-Mword × 72-bit, 100 MHz Memory Bus, 2-Bank Module (36 pcs of 16 M × 4 Components) PC100 SDRAM

HB52R329E22-F
Simplified State Diagram
SELF
REFRESH
SR ENTRY
SR EXIT
MODE
REGISTER
SET
MRS
IDLE
REFRESH
*1
AUTO
REFRESH
CKE
CKE_
ACTIVE
CLOCK
SUSPEND
CKE
CKE_
ACTIVE
BST
(on full page)
ROW
ACTIVE
IDLE
POWER
DOWN
BST
(on full page)
Write
WRITE
CKE_
WRITE
SUSPEND
CKE
WRITE
WRITE
WITH AP
WRITE
WITH
AP
READ
READ
WITH AP
READ
WITH
AP
READ
Read
CKE_
WRITE
READ
CKE
WRITE
WITH AP
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 No. E0112H10
32