IC61C256AH
READ CYCLE SWITCHING CHARACTERISTICS
(1)
(Over Operating Range)
-10
Symbol Parameter
Min.
Max.
Min.
-12
Max.
Min.
-15
Max.
Min.
-20
Max.
Min.
-25
Max.
Unit
t
RC
t
OHA
t
ACE
t
DOE
Read Cycle Time
Output Hold Time
CE
Access Time
OE
Access Time
10
—
2
—
—
0
—
2
—
0
—
—
10
—
10
5
—
5
—
5
—
10
12
—
2
—
—
0
—
3
—
0
—
—
12
—
12
5
—
6
—
7
—
12
15
—
2
—
—
0
—
3
—
0
—
—
15
—
15
7
—
7
—
8
—
15
20
—
2
—
—
0
—
3
—
0
—
—
20
—
20
8
—
9
—
9
—
18
25
—
2
—
—
0
—
3
—
0
—
—
25
—
25
9
—
10
—
10
—
20
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
AA
Address Access Time
t
LZOE
(2)
OE
to Low-Z Output
t
HZOE
(2)
OE
to High-Z Output
t
LZCE
(2)
CE
to Low-Z Output
t
HZCE
(2)
CE
to High-Z Output
t
PU
(3)
CE
to Power-Up
t
PD
(3)
CE
to Power-Down
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 ±200 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 Levels
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.
Integrated Circuit Solution Inc.
AHSR010-0D 4/19/2002
Figure 2.
5
ICSI [ INTEGRATED CIRCUIT SOLUTION INC ]
