hm5216805 Renesas Electronics Corporation., hm5216805 Datasheet - Page 19

• Manufacturer Part Number: hm5216805
• Description: 16 M Lvttl Interface Sdram 100 Mhz/83 Mhz 1-mword 8-bit 2-bank/2-mword 4-bit 2-bank - Hitachi Semiconductor
• Manufacturer: Renesas Electronics Corporation.

Simplified State Diagram
Note: 1. After the auto-refresh operation, precharge operation is performed automatically and
Automatic transition after completion of command.
Transition resulting from command input.
enter the IDLE state.
POWER
APPLIED
SUSPEND
SUSPEND
WRITE
WRITEA
(on full page)
Write
CKE_
CKE_
CKE
CKE
REGISTER
WRITE
WITH AP
POWER
MODE
ON
SET
BST
WRITE
WRITEA
PRECHARGE
SUSPEND
WRITE
ACTIVE
CLOCK
MRS
PRECHARGE
CKE
READ
WITH AP
WRITE
WITH
AP
CKE_
HM5216805 Series, HM5216405 Series
READ
PRECHARGE
PRECHARGE
ACTIVE
IDLE
ROW
ACTIVE
WRITE
READ
WITH
AP
PRECHARGE
SR ENTRY
WRITE
WITH AP
CKE_
REFRESH
CKE
READ
SR EXIT
POWER
READA
DOWN
READ
IDLE
REFRESH
BST
(on full page)
REFRESH
READ
WITH AP
SELF
AUTO
CKE_
CKE_
Read
CKE
CKE
*1
SUSPEND
SUSPEND
READA
READ
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