IS62LV256
AC TEST CONDITIONS
Parameter
Input Pulse Level
Input Rise and Fall Times
Input and Output Timing
and Reference Levels
Output Load
Unit
0V to 3.0V
5 ns
1.5V
See Figures 1a and 1b
ISSI ®
3.3V
1213 Ω
OUTPUT
100 pF
Including
jig and
scope
1378 Ω
3.3V
1213 Ω
OUTPUT
5 pF
Including
jig and
scope
1378 Ω
Figures 1a
Figures 1b
READ CYCLE SWITCHING CHARACTERISTICS(1) (Over Operating Range)
Symbol
tRC
tAA
tOHA
tACE
tDOE
tLZOE(2)
tHZOE(2)
tLZCE(2)
tHZCE(2)
tPU(3)
tPD(3)
Parameter
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
CE to Power-Down
-45 ns
-70 ns
Min.
Max.
Min.
Max.
Unit
45
—
70
—
ns
—
45
—
70
ns
2
—
2
—
ns
—
45
—
70
ns
—
25
—
35
ns
0
—
0
—
ns
0
20
0
25
ns
3
—
3
—
ns
0
20
0
25
ns
0
—
0
—
ns
—
30
—
50
ns
Notes:
1. Test conditions assume signal transition times of 5 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V and
output loading specified in Figure 1a.
2. Tested with the load in Figure 1b. Transition is measured ±500 mV from steady-state voltage. Not 100% tested.
3. Not 100% tested.
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
5
Rev. K
12/11/02