IC62C256 Datasheet, PDF (4/10 Pages) Integrated Circuit Solution Inc – 32K X 8 LOW POWER CMOS STATIC RAM

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READ CYCLE SWITCHING CHARACTERISTICS⁽¹⁾ (Over Operating Range)
Symbol Parameter
tRC Read Cycle Time
tAA Address Access Time
tOHA Output Hold Time
tACS CS Access Time
tDOE OE Access Time
tLZOE OE to Low-Z Output
tHZOE OE to High-Z Output
tLZCS CS to Low-Z Output
tHZCS CS to High-Z Output
tPU^! CS to Power-Up
tPD^! CS 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 .igure 1.
2. Tested with the load in .igure 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 .all Times
Input and Output Timing
and Reference Levels
Output Load
Unit
0V to 3.0V
3 ns
1.5V
See .igures 1 and 2
AC TEST LOADS
480 Ω
5V
OUTPUT
100 pF
Including
jig and
scope
.igure 1.
255 Ω
480 Ω
5V
OUTPUT
5 pF
Including
jig and
scope
.igure 2.
255 Ω
4
Integrated Circuit Solution Inc.
ALSR010-0A 05/23/2001