AS7C256
AS7C256L
TYPICAL DC AND AC CHARACTERISTICS
Normalized supply current I
CC
, I
SB
vs. supply voltage V
CC
1.4
1.2
Normalized I
CC
, I
SB
1.0
0.8
0.6
0.4
0.2
0.0
4.0
4.5
5.0
5.5
Supply voltage (V)
Normalized access time t
AA
vs. supply voltage V
CC
6.0
I
SB
Normalized I
CC
, I
SB
I
CC
Normalized supply current I
CC
, I
SB
vs. ambient temperature T
a
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
–55
I
SB
I
CC
Normalized I
SB1
(log scale)
625
25
5
1
0.2
Normalized supply current I
SB1
vs. ambient temperature T
a
V
CC
= 5.0V
0.04
-55
-10
35
80
125
Ambient temperature (°C)
–10
35
80
125
Ambient temperature (°C)
Normalized access time t
AA
vs. ambient temperature T
a
1.5
Normalized access time
1.4
1.3
1.2
1.1
1.0
0.9
0.8
4.0
1.5
Normalized access time
1.4
1.4
1.2
Normalized supply current I
CC
vs. cycle frequency 1/t
RC
, 1/t
WC
T
a
= 25°C
1.2
1.1
1.0
0.9
0.8
–55
–10
35
80
125
Ambient temperature (°C)
Output sink current I
OL
vs. output voltage V
OL
Normalized I
CC
1.3
V
CC
= 5.0V
1.0
0.8
0.6
0.4
0.2
0.0
0
V
CC
= 5.0V
T
a
= 25°C
4.5
5.0
5.5
Supply voltage (V)
Output source current I
OH
vs. output voltage V
OH
6.0
25
50
75
Cycle frequency (MHz)
100
Typical access time change
∆
t
AA
vs. output capacitive loading
35
30
Change in t
AA
(ns)
V
CC
= 4.5V
140
Output source current (mA)
120
100
80
60
40
20
0
0.0
140
Output sink current (mA)
120
100
80
60
40
20
0
0.0
V
CC
= 5.0V
T
a
= 25°C
V
CC
= 5.0V
T
a
= 25°C
25
20
15
10
5
0
1.25
2.5
3.75
Output voltage (V)
5.0
1.25
2.5
3.75
Output voltage (V)
5.0
0
250
500
750
Capacitance (pF)
1000
AS7C256-11
7
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
