IS41C16100
IS41LV16100
TRUTH TABLE
Function
Standby
Read: Word
Read: Lower Byte
Read: Upper Byte
Write: Word (Early Write)
Write: Lower Byte (Early Write)
Write: Upper Byte (Early Write)
Read-Write
(1,2)
EDO Page-Mode Read
(2)
1st Cycle:
2nd Cycle:
Any Cycle:
1st Cycle:
2nd Cycle:
1st Cycle:
2nd Cycle:
Read
(2)
Write
(1,3)
RAS
H
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L→H→L
L→H→L
L
H→L
LCAS
H
L
L
H
L
L
H
L
H→L
H→L
L→H
H→L
H→L
H→L
H→L
L
L
H
L
UCAS
H
L
H
L
L
H
L
L
H→L
H→L
L→H
H→L
H→L
H→L
H→L
L
L
H
L
WE
X
H
H
H
L
L
L
H→L
H
H
H
L
L
H→L
H→L
H
L
X
X
OE
X
L
L
L
X
X
X
L→H
L
L
L
X
X
L→H
L→H
L
X
X
X
Address t
R
/t
C
X
ROW/COL
ROW/COL
ROW/COL
ROW/COL
ROW/COL
ROW/COL
ROW/COL
ROW/COL
NA/COL
NA/NA
ROW/COL
NA/COL
ROW/COL
NA/COL
ROW/COL
ROW/COL
ROW/NA
X
I/O
ISSI
High-Z
D
OUT
Lower Byte, D
OUT
Upper Byte, High-Z
Lower Byte, High-Z
Upper Byte, D
OUT
D
IN
Lower Byte, D
IN
Upper Byte, High-Z
Lower Byte, High-Z
Upper Byte, D
IN
D
OUT
, D
IN
D
OUT
D
OUT
D
OUT
D
IN
D
IN
D
OUT
, D
IN
D
OUT
, D
IN
D
OUT
D
OUT
High-Z
High-Z
®
EDO Page-Mode Write
(1)
EDO Page-Mode
(1,2)
Read-Write
Hidden Refresh
RAS-Only
Refresh
CBR Refresh
(4)
Notes:
1. These WRITE cycles may also be BYTE WRITE cycles (either
LCAS
or
UCAS
active).
2. These READ cycles may also be BYTE READ cycles (either
LCAS
or
UCAS
active).
3. EARLY WRITE only.
4. At least one of the two
CAS
signals must be active (LCAS or
UCAS).
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
Rev. L
12/22/05
3
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
