®
IS61C64AL
ISSI
READ CYCLE SWITCHING CHARACTERISTICS(1) (Over Operating Range)
-10 ns
Min. Max
-12 ns
Min. Max.
1
Symbol
tRC
Parameter
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 toPower-Up
10
—
2
—
10
—
10
6
12
—
2
—
12
—
12
6
tAA
2
tOHA
tACS
—
—
0
—
—
0
tDOE
(2)
3
tLZOE
—
5
—
6
(2)
tHZOE
—
2
—
3
(2)
tLZCS
—
5
—
7
(2)
4
tHZCS
—
0
—
0
(3)
tPU
—
10
—
12
(3)
tPD
CEtoPower-Down
—
—
5
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 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.
6
AC TEST CONDITIONS
7
Parameter
Input Pulse Level
Input Rise and Fall Times
Input and Output Timing
and Reference Levels
Unit
0V to 3.0V
3 ns
8
1.5V
Output Load
See Figures 1 and 2
9
AC TEST LOADS
10
11
12
480 Ω
480 Ω
5V
5V
OUTPUT
OUTPUT
255 Ω
5 pF
255 Ω
30 pF
Including
jig and
Including
jig and
scope
scope
Figure 2
Figure 1
Integrated Silicon Solution, Inc. — 1-800-379-4774
5
Rev. A
03/16/06