MB81F643242C Datasheet, PDF (22/56 Pages) Fujitsu Component Limited. – 4 X 512 K X 32 BIT SYNCHRONOUS DYNAMIC RAM

MB81F643242C-60/-70/-10 Advanced Info (AE0.1E)
Fig. 3 – STATE DIAGRAM (Simplified for Single BANK Operation State Diagram)
MODE
REGISTER
SET
MRS
IDLE
SELF
SELFX
SELF
REFRESH
REF
CKE\(PD) CKE
POWER
DOWN
AUTO
REFRESH
BANK
ACTIVE
SUSPEND
CKE\(CSUS)
CKE
BST
BANK
ACTIVE
BST
WRIT
WRIT
READ
READ
WRITE ^CKE\(CSUS)
SUSPEND
CKE
WRITE
WRITA
READA
READ
WRIT
READ
CKE\(CSUS) _READ
CKE
SUSPEND
WRITA
READA
WRITA
READA
WRITE
SUSPEND
CKE\(CSUS) WRITE WITH
AUTO
CKE PRECHARGE
PRE or
PALL
PRE or
PALL
READ WITH ^CKE\(CSUS)
AUTO
PRECHARGE
CKE
READ
SUSPEND
POWER
ON
PRE or PALL
PRECHARGE
POWER
APPLIED
DEFINITION OF ALLOWS
Manual
Input
Automatic
Sequence
Note: CKE\ means CKE goes Low-level from High-level.
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