IS42S83200C
IS42S16160C
Function Truth Table
Current state
Idle
/CS
H
L
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
H
L
L
L
L
L
L
L
L
/RAS
X
H
H
H
H
L
L
L
L
L
X
H
H
H
H
L
L
L
L
X
H
H
H
H
L
L
L
L
X
H
H
H
H
L
L
L
L
X
H
H
H
H
L
L
L
L
X
H
H
H
H
L
L
L
L
/CAS
X
H
H
L
L
H
H
L
L
L
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
X
H
H
L
L
H
H
L
L
/WE
X
H
L
H
L
H
L
H
L
L
X
H
L
H
L
H
L
H
L
X
H
L
H
L
H
L
H
L
X
H
L
H
L
H
L
H
L
X
H
L
H
L
H
L
H
L
X
H
L
H
L
H
L
H
L
/Address
X
X
X
BA,CA,A10
BA,CA,A10
BA,RA
BA,A10
X
OC,BA1=L
OC,BA1=H
X
X
X
BA,CA,A10
BA,CA,A10
BA,RA
BA,A10
X
OC,BA
X
X
X
BA,CA,A10
BA,CA,A10
BA,RA
BA,A10
X
OC,BA1=L
X
X
X
BA,CA,A10
BA,CA,A10
BA,RA
BA,A10
X
OC,BA1=L
X
X
X
BA,CA,A10
BA,CA,A10
BA,RA
BA,A10
X
OC,BA1=L
X
X
X
BA,CA,A10
BA,CA,A10
BA,RA
BA,A10
X
OC,BA1=L
Command
DESL
NOP
BST
RD/RDA
WR/WRA
ACT
PRE/PALL
REF
MRS
EMRS
DESL
NOP
BST
RD/RDA
WR/WRA
ACT
PRE/PALL
REF
MRS / EMRS
DESL
NOP
BST
RD/RDA
WR/WRA
ACT
PRE/PALL
REF
MRS / EMRS
DESL
NOP
BST
RD/RDA
WR/WRA
ACT
PRE/PALL
REF
MRS / EMRS
DESL
NOP
BST
RD/RDA
WR/WRA
ACT
PRE/PALL
REF
MRS / EMRS
DESL
NOP
BST
RD/RDA
WR/WRA
ACT
PRE/PALL
REF
MRS / EMRS
Action
NOP
NOP
NOP
ILLEGAL
ILLEGAL
Row activating
NOP
Auto refresh
Mode register set
Extended mode register set
NOP
NOP
NOP
Begin read
Begin write
ILLEGAL
Precharge / Precharge all banks
ILLEGAL
ILLEGAL
Continue burst to end ( Row active
Continue burst to end ( Row active
Burst stop ( Row active
Terminate burst,begin new read
Terminate burst,begin write
ILLEGAL
Terminate burst ( Precharging
ILLEGAL
ILLEGAL
Continue burst to end ( Write recovering
Continue burst to end ( Write recovering
Burst stop ( Row active
Terminate burst, start read : Determine AP
Terminate burst,new write : Determine AP
ILLEGAL
Terminate burst ( Precharging
ILLEGAL
ILLEGAL
Continue burst to end ( Precharging
Continue burst to end ( Precharging
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Continue burst to end ( Write recovering
Continue burst to end ( Write recovering
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
ILLEGAL
Notes
1
1
Row active
2
2
1
3
Read
4
4,5
1
Write
4,5
4
1
6
Read with auto
precharge
1
1
1
1
Write with auto
precharge
1
1
1
1
Integrated Silicon Solution, Inc. — www.issi.com
Rev.
C
04/02/09
11
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
