MB81N643289 Datasheet, PDF (18/64 Pages) Fujitsu Component Limited. – 8 x 256K x 32 BIT DOUBLE DATA RATE FCRAMTM

MB81N643289-50/-60 Preliminary (AE1E)
s STATE DIAGRAM (continued)
Fig. 2 – STATE DIAGRAM (Simplified for Single Bank Operation)
POWER
DOWN
PDEN
PDEX
MRS
IDLE
(Standby)
SELF
SELFX
SELF
REFRESH
REF
MODE
REGISTER
AUTO
REFRESH
WRA
ACTV
PC or
PCA
RDA
WRITE
PAGE CLOSE
WRITE
PAGE OPEN
WRA
ACTIVE
WR
RDA
RD
READ
PAGE CLOSE
READ
PAGE OPEN
DEFINITION OF ALLOWS
Command
Input
Automatic
Return
18