IS65LV256AL
IS62LV256AL
®
ISSI
READ CYCLE SWITCHING CHARACTERISTICS(1) (Over Operating Range)
-20 ns
Min.
-45 ns
Symbol
tRC
Parameter
Max.
—
20
—
20
10
—
9
Min.
Max.
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Read Cycle Time
Address Access Time
Output Hold Time
CE Access Time
OE Access Time
OE to Low-Z Output
OE to High-Z Output
CE to Low-Z Output
CE to High-Z Output
CE to Power-Up
20
—
2
45
—
2
—
tAA
45
—
tOHA
tACE
—
—
0
—
—
0
45
25
—
tDOE
(2)
tLZOE
(2)
tHZOE
—
3
0
20
—
(2)
tLZCE
—
9
3
(2)
tHZCE
—
0
0
20
—
(3)
tPU
—
18
0
(3)
tPD
CE to Power-Down
—
—
30
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
Unit
0V to 3.0V
3 ns
Input and Output Timing
and Reference Levels
1.5V
Output Load
See Figures 1 and 2
AC TEST LOADS
635 Ω
635 Ω
3.3V
3.3V
OUTPUT
OUTPUT
702 Ω
702 Ω
30 pF
Including
jig and
5 pF
Including
jig and
scope
scope
Figure 1.
Figure 2.
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
5
Rev. A
03/17/06
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
