IC42S81600 Datasheet, PDF (12/69 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⁽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.
DR023-0E 6/11/2004