MB81N643289 Datasheet, PDF (9/64 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
Read With
HXXX
X
Auto-Close
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
Write with
HXXX
X
Auto-Close
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
—
RD/RDA
WR/WRA
ACTV
PC
PCA
REF/SELF
MRS/EMRS
DESL
NOP
—
RD/RDA
WR/WRA
ACTV
PC
PCA
REF/SELF
MRS/EMRS
NOP (Continue Burst to End ->
Bank Idle)
NOP (Continue Burst to End ->
Bank Idle)
Illegal
Illegal
*17
Illegal
*17
Illegal
*15
Illegal
*15
Illegal
Illegal
Illegal
NOP (Continue Burst to End ->
Bank Idle)
NOP (Continue Burst to End ->
Bank Idle)
Illegal
Illegal
*17
Illegal
*17
Illegal
*15
Illegal
*15
Illegal
Illegal
Illegal
9