Philips Semiconductors
Product data
Octal SMBus and I
2
C registered interface
PCA9556
DC CHARACTERISTICS
SYMBOL
Supplies
V
DD
I
DD
Supply voltage
Supply current
V
DD
= 3.0 to 5.5 V; V
SS
= 0 V; T
amb
= –40 to +85
°C;
unless otherwise specified.
PARAMETER
CONDITIONS
V
DD
= 3.3 V
MIN
TYP
MAX
MIN
V
DD
= 5 V
TYP
MAX
UNIT
3.0
Operating mode; no load;
V
I
= V
DD
or V
SS
;
f
SCL
= 100 kHz
Standby mode; no load;
V
I
= V
DD
or V
SS
;
f
SCL
= 0 kHz
V
DD
= 3.3 V; no load;
V
I
= V
DD
or V
SS;
note 1
—
—
300
3.6
425
4.5
—
—
1100
5.5
1500
V
µA
I
stb
V
POR
Standby current
—
25
50
–
65
100
µA
V
Power-on reset voltage
—
1.3
2.4
–
1.3
2.4
Input SCL; input/output SDA
V
IL
V
IH
I
OL
I
L
C
I
I/Os
V
IL
V
IH
I
IHL(max)
I
OL
LOW level input voltage
HIGH level input voltage
Maximum allowed input current
through protection diode (I/O1 – I/O7)
LOW level output current
HIGH level output current except I/O0
I
OH
HIGH level output current on I/O0
I
L
C
I
C
O
V
IL
V
IH
Input leakage current
Input capacitance
Output capacitance
V
I
≥
V
DD
or V
I
≤
V
SS
V
OL
= 0.55 V; V
DD
= 3.3 V;
note 2
V
OH
= 2.4 V; V
DD
= 3.3 V;
note 3
V
DD
= 3.6 V; V
OH
= 4.6 V
V
DD
= 0 V; V
OH
= 3.3 V
V
DD
= 3.6 V; V
I
= 0 or V
DD
–0.5
2.0
—
8
4
—
—
–1
—
—
—
—
—
10
—
—
—
—
—
—
0.8
V
DD
+ 0.5
±400
—
—
1
1
1
10
10
–0.5
2.0
—
8
4
—
—
–1
—
—
—
—
—
10
—
—
—
—
—
—
0.8
V
DD
+ 0.5
±400
—
—
1
1
1
10
10
V
V
µA
mA
mA
µA
µA
pF
pF
LOW level input voltage
HIGH level input voltage
LOW level output current
Leakage current
Input capacitance
V
OL
= 0.4 V
V
I
= V
DD
= V
SS
V
I
= V
SS
–0.5
2.1
3
–1
—
—
—
—
—
—
0.8
5.5
—
+1
10
–0.5
2.1
3
–1
—
—
—
—
—
—
0.8
5.5
—
+1
10
V
V
mA
µA
pF
Select Inputs A0, A1, A2, and RESET
LOW level input voltage
HIGH level input voltage
–0.5
2.0
—
—
0.8
V
DD
+ 0.5
–0.5
2.0
–1
—
—
—
0.8
V
DD
+ 0.5
1
V
V
µA
I
LI
Input leakage current
–1
—
1
NOTES:
1. The power-on reset circuit resets the SMBus logic with V
DD
<
V
POR
and sets all I/Os to their default values.
2. The maximum total sink current must be limited to 54 mA at +85
°C,
and 80 mA at +70
°C.
3. The maximum total source current must be limited to 54 mA at +85
°C,
and 80 mA at +70
°C.
2002 Mar 28
10
PHILIPS [ NXP SEMICONDUCTORS ]
