MB81F641642D Fujitsu Microelectronics, MB81F641642D Datasheet - Page 21

• Manufacturer Part Number: MB81F641642D
• Description: 4 x 1M x 16-Bit SDRAM
• Manufacturer: Fujitsu Microelectronics

SUSPEND
SUSPEND
Note: CKE\ means CKE goes Low-level from High-level.
SUSPEND
ACTIVE
WRITE
WRITE
BANK
POWER
Fig. 3 – STATE DIAGRAM (Simplified for Single BANK Operation State Diagram)
ON
APPLIED
POWER
REGISTER
CKE\(CSUS)
CKE\(CSUS)
MODE
SET
CKE\
CKE
MB81F641642D-75/-102/-102L
WRIT
WRITA
PRE or PALL
PRECHARGE
WRITE WITH
CKE\(CSUS)
CKE
WRITE
AUTO
BST
MRS
WRIT
PRE or
PALL
DEFINITION OF ALLOWS
Manual
Input
READA
WRITA
PRECHARGE
ACTIVE
BANK
IDLE
CKE\(PD)
READ
READA
WRIT
WRITA
PRE or
PALL
READ
PRECHARGE
SELF
READ WITH
SELFX
CKE
Automatic
Sequence
BST
READ
AUTO
POWER
DOWN
REF
READA
READ
CKE\(CSUS)
CKE\(CSUS)
REFRESH
CKE
CKE
SELF
REFRESH
AUTO
Preliminary (AE4.1E)
SUSPEND
SUSPEND
READ
READ
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