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IC42S16160 Datasheet, PDF (12/69 Pages) Integrated Circuit Solution Inc – 4M x 16Bit x 4 Banks (256-MBIT) SDRAM
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IC42S16160
OPERATION COMMAND TABLE(1)
Current State Command
Idle
Row Active
Read
Write
Read With
Auto-
Precharge
DESL
NOP or BST
READ / READA
WRIT/WRITA
ACT
PRE/PALL
REF/SELF
MRS
DESL
NOP or 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
NOP or Power-Down(2)
NOP or Power-Down(2)
Illegal(3)
Illegal(3)
Row Active
NOP
Refresh or Self-Refresh(4)
Mode Register Set
NOP
NOP
Begin read : Determine AP(5)
Begin write : Determine AP(5)
Illegal(3)
Precharge(6)
Illegal
Illegal
Continue burst to end -> Row active
Continue burst to end -> Row active
Burst stop -> Row active
Term burst, new read : Determine AP(7)
Term burst, start write : Determine AP(7, 8)
Illegal(3)
Term burst, precharging
Illegal
Illegal
Continue burst to end -> write recovering
Continue burst to end -> write recovering
Burst stop -> Row active
Term burst, start read : Determine AP(7, 8)
Term burst, new write : Determine AP(7)
Illegal(3)
Term burst, precharging(9)
Illegal
Illegal
Continue burst to end -> Precharging
Continue burst to end -> Precharging
Illegal
Illegal(11)
Illegal(11)
Illegal(3)
Illegal(11)
Illegal
Illegal
12
CS RAS CAS WE Address
H X X XX
L H H XX
L H L H BA, CA, A10
L H L L BA, CA, A10
L L H H BR, RA
L L H L BA, A10
L L L HX
L
L
L
L Op-Code
H X X XX
L H H HX
L H L H BA, CA, A10
L H L L BA, CA, A10
L L H H BR, RA
L L H L BA, A10
L L L HX
L
L
L
L Op-Code
H X X XX
L H H HX
L H H LX
L H L H BA, CA, A10
L H L L BA, CA, A10
L L H H BR, RA
L L H L BA, A10
L L L HX
L
L
L
L Op-Code
H X X XX
L H H HX
L H H LX
L H L H BA, CA, A10
L H L L BA, CA, A10
L L H H BR, RA
L L H L BA, A10
L L L HX
L
L
L
L Op-Code
H X X XX
L H H HX
L H H LX
L H L H BA, CA, A10
L H L L BA, CA, A10
L L H H BR, RA
L L H L BA, A10
L L L HX
L
L
L
L Op-Code
Integrated Circuit Solution Inc.
DR037-0A 9/05/2003
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