MB81EDS256445 Datasheet, PDF (16/52 Pages) Fujitsu Component Limited. – MEMORY Consumer FCRAM CMOS 256M Bit (4 bank x 1M word x 64 bit) Consumer Applications Specific Memory for SiP

MB81EDS256445
Current State
Write
Recovering
Precharging
CS RAS CAS WE
HXXX
L HHH
L HH L
LHLH
LHL L
L LHH
L LHL
L L LH
LLLL
HXXX
L HHH
L HH L
LHLH
LHL L
L LHH
L LHL
L L LH
LLLL
Address
X
X
X
BA, CA, AP
BA, CA, AP
BA, RA
BA, AP
X
MODE
X
X
X
BA, CA, AP
BA, CA, AP
BA, RA
BA, AP
X
MODE
Command
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF
MRS
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF
MRS
Function
NOP
Illegal
Start Write; Determine AP
Illegal *¹
Illegal
NOP
Illegal
Illegal *¹
NOP *²
Illegal
(Continued)
16
DS05-11456-1E