IC42S81600 Datasheet, PDF (13/69 Pages) Integrated Circuit Solution Inc – 4(2)M x 8(16) Bits x 4 Banks (128-MBIT) SYNCHRONOUS DYNAMIC RAM

IC42S81600/IC42S81600L
IC42S16800/IC42S16800L
OPERATION COMMAND TABLE^(continue)
Current State Command
Write with auto
precharge
Precharging
Row activating
Write
recovering
DESL
NOP
BST
READ / READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
Operation
CS RAS CAS WE Address
Continue burst to end → write recovering with auto precharge H
X
X
XX
Continue burst to end → write recovering with auto precharge L
H
H
HX
Illegal
L H H LX
Illegal⁽¹¹⁾
L H L H BA, CA, A10
Illegal⁽¹¹⁾
L H L L BA, CA, A10
Illegal^{(3, 11)}
L L H H BR, RA
Illegal^{(3, 11)}
L L H L BA, A10
Illegal
L L L HX
Illegal
L
L
L
L Op-Code
Nop → Enter idle after tRP
H X X XX
Nop → Enter idle after tRP
L H H HX
Nop → Enter idle after tRP
L H H LX
Illegal⁽³⁾
L H L H BA, CA, A10
Illegal⁽³⁾
L H L L BA, CA, A10
Illegal⁽³⁾
L L H H BR, RA
Nop → Enter idle after tRP
L L H L BA, A10
Illegal
L L L HX
Illegal
L
L
L
L Op-Code
Nop → Enter row active after tRCD
H X X XX
Nop → Enter row active after tRCD
L H H HX
Nop → Enter row active after tRCD
L H H LX
Illegal⁽³⁾
L H L H BA, CA, A10
Illegal⁽³⁾
L H L L BA, CA, A10
Illegal^{(3, 9)}
L L H H BR, RA
Illegal⁽³⁾
L L H L BA, A10
Illegal
L L L HX
Illegal
L
L
L
L Op-Code
Nop → Enter row active after tDPL
Nop → Enter row active after tDPL
H X X XX
L H H HX
Nop → Enter row active after tDPL
L H H LX
Start read, Determine AP⁽⁸⁾
L H L H BA, CA, A10
New write, Determine AP
L H L L BA, CA, A10
Illegal⁽³⁾
L L H H BR, RA
Illegal⁽³⁾
L L H L BA, A10
Illegal
L L L HX
Illegal
L
L
L
L Op-Code
Integrated Circuit Solution Inc.
13
DR023-0E 6/11/2004