PCA9555
REMOTE 16-BIT I2C AND SMBus I/O EXPANDER
WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS
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SCPS131D–AUGUST 2005–REVISED OCTOBER 2006
TYPICAL CHARACTERISTICS (continued)
TA = 25°C (unless otherwise noted)
I/O SOURCE CURRENT
vs
OUTPUT HIGH VOLTAGE
I/O HIGH VOLTAGE
vs
TEMPERATURE
SUPPLY CURRENT
vs
NUMBER OF I/Os HELD LOW
300
275
250
225
200
175
150
125
100
75
75
1200
1100
1000
900
800
700
600
500
400
300
200
100
0
VCC = 5 V
70
65
60
55
50
45
40
35
30
25
20
15
10
5
VCC = 5 V
VCC = 2.5 V, IOL = 10 mA
TA = –40°C
TA = –40°C
TA = 25°C
TA = 25°C
VCC = 5 V, IOL = 10 mA
TA = 125°C
TA = 125°C
50
25
0
0
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
-50
-25
0
25
50
75
100
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16
(VCC – VOH) – V
TA – Free-Air Temperature – °C
Number of I/Os Held Low
OUTPUT HIGH VOLTAGE
vs
SUPPLY VOLTAGE
6
5
4
3
2
1
0
TA = 25°C
IOH = –8 mA
IOH = –10 mA
2.3
2.7
3.1
3.5
3.9
4.3
4.7
5.1
5.5
VCC – Supply Voltage – V
17
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