MB81EDS516445 Datasheet, PDF (14/52 Pages) Fujitsu Component Limited. – 512M Bit (4 bank x 2M word x 64 bit) Consumer Applications Specific Memory for SiP

MB81EDS516445
Current State
READ
WRITE
CS RAS CAS WE
HXXX
L HHH
L HH L
Address
X
X
X
L H L H BA, CA, AP
L H L L BA, CA, AP
L LHH
BA, RA
L LHL
BA, AP
L L LH
LLLL
HXXX
L HHH
X
MODE
X
X
L HH L
X
L H L H BA, CA, AP
L H L L BA, CA, AP
L LHH
L LHL
L L LH
LLLL
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
Burst Terminate →
BANK ACTIVE
Interrupt burst read by new
burst read; Determine AP
Illegal
Illegal *¹
Terminate burst read by
precharge → IDLE
Illegal
NOP
Burst terminate →
BANK ACTIVE
Interrupt burst write by new
burst read; Determine AP *⁵
Interrupt burst write by new
burst write; Determine AP
Illegal *¹
Illegal
(Continued)
14
DS05-11464-1E