AS7C256 ETC, AS7C256 Datasheet - Page 7

• Manufacturer Part Number: AS7C256
• Description: High Performance 32Kx8 CMOS SRAM
• Manufacturer: ETC

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