CY7C138 CYPRESS [Cypress Semiconductor], CY7C138 Datasheet - Page 14

• Manufacturer Part Number: CY7C138
• Description: 4K x 8/9 Dual-Port Static RAM
• Manufacturer: CYPRESS [Cypress Semiconductor]

Typical DC and AC Characteristics
1.00
0.75
0.50
0.25
1.4
1.3
1.2
1.1
1.0
0.9
0.8
0.0
0.6
1.4
1.2
1.0
0.8
0.4
0.2
0.0
4.0
4.0
0
NORMALIZED ACCESS TIME
vs. SUPPLY VOLTAGE
TYPICAL POWER-ON CURRENT
vs. SUPPLY VOLTAGE
NORMALIZED SUPPLY CURRENT
vs. SUPPLY VOLTAGE
1.0
SUPPLYVOLTAGE (V)
SUPPLYVOLTAGE (V)
SUPPLYVOLTAGE (V)
4.5
4.5
2.0
I
CC
5.0
5.0
3.0
I
SB3
T A =25_C
5.5
5.5
4.0
6.0
5.0
6.0
30.0
25.0
20.0
15.0
10.0
1.6
1.4
1.2
1.0
0.8
0.6
1.2
1.0
0.8
0.6
0.4
0.2
0.6
5.0
-55
–55
0
NORMALIZED ACCESS TIME
vs. AMBIENT TEMPERATURE
TYPICAL ACCESS TIME CHANGE
vs. OUTPUT LOADING
0
NORMALIZED SUPPLY CURRENT
vs. AMBIENT TEMPERATURE
AMBIENT TEMPERATURE (°C)
I
AMBIENT TEMPERATURE (°C)
SB3
200
CAPACITANCE (pF)
400
14
25
25
I
CC
V
T
V
V
V CC =5.0V
A
600
CC
CC
IN
=25°C
=5.0V
=4.5V
=5.0V
800
1000
125
125
140
120
100
1.25
0.75
0.50
200
160
120
80
60
40
20
80
40
1.0
0
0.0
0
OUTPUT SINK CURRENT
vs. OUTPUT VOLTAGE
10
0
OUTPUT SOURCE CURRENT
vs. OUTPUT VOLTAGE
NORMALIZED I
V
T
V
A
CC
IN
1.0
OUTPUT VOLTAGE (V)
CYCLE FREQUENCY (MHz)
1.0
=25°C
=0.5V
OUTPUT VOLTAGE (V)
=5.0V
2.0
28
2.0
V
T
CC
A
CC
3.0
3.0
CY7C138
CY7C139
V
T
=25°C
vs.CYCLE TIME
A
CC
=5.0V
40
=25°C
=5.0V
4.0
4.0
5.0
5.0
66