MB81N643289 Datasheet, PDF (10/64 Pages) Fujitsu Component Limited. – 8 x 256K x 32 BIT DOUBLE DATA RATE FCRAMTM

MB81N643289-50/-60 Preliminary (AE1E)
s FUNCTION TRUTH TABLE (Continued)
OPERATION COMMAND TABLE (Continued)
Current
State
CS RAS CAS WE Address
Page Close ^{H X X X}
X
L HHH
X
L HH L
—
L H L H BA, CA, AC
L H L L BA, CA, AC
L LHH
BA, RA
L LHL
BA, AC
L LHL
BA, AC
L L LH
X
LLLL
MODE
Bank
HXXX
X
Activating
L HHH
X
L HH L
—
L H L H BA, CA, AC
L H L L BA, CA, AC
L LHH
BA, RA
L LHL
BA, AC
L LHL
BA, AC
L L LH
X
LLLL
MODE
Command
Function
Notes
DESL
NOP (Idle after tPCL)
NOP
NOP (Idle after tPCL)
—
Illegal
RD/RDA Illegal
*15
WR/WRA Illegal
*15
ACTV
Illegal
*15
PC
NOP
*15
PCA
NOP
*14
REF/SELF Illegal
MRS/EMRS Illegal
DESL
NOP (Bank Active after lRCD)
NOP
NOP (Bank Active after lRCD)
—
Illegal
RD/RDA Illegal
*15
WR/WRA Illegal
*15
ACTV
Illegal
*15
PC
Illegal
*15
PCA
Illegal
REF/SELF Illegal
MRS/EMRS Illegal
10