IS61C1024AL, IS64C1024AL
READ CYCLE SWITCHING CHARACTERISTICS
(1)
(Over Operating Range)
Symbol
Parameter
Read Cycle Time
Address Access Time
Output Hold Time
CE1
Access Time
CE2 Access Time
OE
Access Time
OE
to Low-Z Output
OE
to High-Z Output
CE1
to Low-Z Output
CE2 to Low-Z Output
CE1
or CE2 to High-Z Output
CE1
or CE2 to Power-Up
CE1
or CE2 to Power-Down
-12
Min. Max.
12
—
3
—
—
—
0
0
2
2
0
0
—
—
12
—
12
12
6
—
6
—
—
7
—
12
-15
Min. Max.
15
—
3
—
—
—
0
0
2
2
0
0
—
—
15
—
15
15
7
—
6
—
—
8
—
12
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ISSI
®
t
RC
t
AA
t
OHA
t
ACE
1
t
ACE
2
t
DOE
t
LZOE
(2)
t
HZOE
(2)
t
LZCE
1
(2)
t
LZCE
2
(2)
t
HZCE
(2)
t
PU
(3)
t
PD
(3)
Notes:
1. Test conditions assume signal transition times of 3 ns or less, timing reference levels of 1.5V, input pulse
levels of 0 to 3.0V and output loading specified in Figure 1.
2. Tested with the load in Figure 2. Transition is measured ±500 mV from steady-state voltage. Not 100% tested.
3. Not 100% tested.
AC TEST CONDITIONS
Parameter
Input Pulse Level
Input Rise and Fall Times
Input and Output Timing
and Reference Level
Output Load
Unit
0V to 3.0V
3 ns
1.5V
See Figures 1 and 2
AC TEST LOADS
480
Ω
5V
5V
480
Ω
OUTPUT
30 pF
Including
jig and
scope
255
Ω
OUTPUT
5 pF
Including
jig and
scope
255
Ω
Figure 1
Figure 2
5
Integrated Silicon Solution, Inc. — www.issi.com —
1-800-379-4774
Rev. B
01/24/05
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
