IS42S8800 Datasheet, PDF (12/68 Pages) Integrated Circuit Solution Inc – 2(1)M words x 8(16) bits x 4 banks (64-mbit) synchronous dynamic ram

IS42S8800/IS42S8800L
IS42S16400/IS42S16400L
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 precharte H X X X X
Continue burst to end -> write recovering with auto precharte L H H H X
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
12
Integrated Circuit Solution Inc.
DR007-0A