PCF8575
REMOTE 16-BIT I2C AND SMBus I/O EXPANDER
WITH INTERRUPT OUTPUT
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SCPS121C–JANUARY 2005–REVISED OCTOBER 2006
TYPICAL OPERATING CHARACTERISTICS
TA = 25°C (unless otherwise noted)
Standby Supply Current
Supply Current
vs Supply Voltage
Supply Current
vs Temperature
vs Temperature
90
100
90
80
70
60
50
40
30
20
10
0
120
SCL = V
CC
f
= 400 kHz
All I/Os unloaded
f
= 400 kHz
All I/Os unloaded
SCL
SCL
80
70
60
50
40
30
20
10
0
All I/Os unloaded
100
80
60
40
20
0
V
CC
= 5 V
V
CC
= 5 V
V
CC
= 2.5 V
V
CC
= 3.3 V
V
CC
= 3.3 V
V
CC
= 2.5 V
−50 −25
0
25 50 75 100 125
−50 −25
0
25 50 75 100 125
2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
Temperature (5C)
Temperature (5C)
Supply Voltage (V)
I/O Sink Current
I/O Sink Current
I/O Sink Current
vs Output Low Voltage
vs Output Low Voltage
vs Output Low Voltage
20
18
16
14
12
10
8
25
20
15
10
5
35
30
25
20
15
10
5
V
CC
= 2.5 V
V
CC
= 3.3 V
V
CC
= 5 V
T
A
= −40_C
T
= −40_C
T
A
= −40_C
A
T
= 25_C
A
T
A
= 25_C
T
A
= 25_C
6
T
A
= 85_C
T
A
= 85_C
T
A
= 85_C
4
2
0
0
0
0.0 0.1 0.2 0.3 0.4 0.5 0.6
0.0 0.1 0.2 0.3 0.4 0.5 0.6
0.0 0.1 0.2 0.3 0.4 0.5 0.6
V
OL
(V)
V
OL
(V)
Vol (V)
I/O Source Current
vs Output High Voltage
I/O Source Current
vs Output High Voltage
I/O Output Low Voltage
vs Temperature
600
500
400
300
200
100
0
45
40
35
30
25
20
15
10
5
45
40
35
30
25
20
15
10
5
V
CC
= 2.5 V
V
CC
= 3.3 V
T
A
= −40_C
T
= 25_C
A
V
CC
= 5 V, I
= 10 mA
SINK
T
A
= −40_C
T
= 25_C
A
V
CC
= 2.5 V, I
= 10 mA
= 5 V,
SINK
V
CC
V
CC
= 2.5 V,
I
= 1 mA
SINK
T
= 85_C
T
A
= 85_C
A
I
= 1 mA
SINK
0
0
−50 −25
0
25 50 75 100 125
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7
Temperature (5C)
V
CC
− V (V)
V
CC
− V (V)
OH
OH
11
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