2
I C Port Expander with 12 Push-Pull Outputs
and 4 Open-Drain I/Os
ABSOLUTE MAXIMUM RATINGS
(All voltages referenced to GND.)
Total GND Current ...........................................................100mA
Supply Voltage V+....................................................-0.3V to +6V
SCL, SDA, AD0, AD2, RST, INT, P2–P5 ..................-0.3V to +6V
Continuous Power Dissipation (T = +70°C)
A
24-Pin QSOP (derate 9.5mW/°C over +70°C)...........761.9mW
24-Pin TQFN (derate 20.8mW/°C over +70°C) .......1666.7mW
Operating Temperature Range .........................-40°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
O0, O1, O6–O15 .............................................-0.3V to V + 0.3V
+
O0, O1, O6–O15 Output Current ..................................... 25mA
P2–P5 Sink Current ............................................................25mA
SDA Sink Current ...............................................................10mA
INT Sink Current .................................................................10mA
Total V+ Current .................................................................50mA
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
DC ELECTRICAL CHARACTERISTICS
(V+ = +1.71V to +5.5V, T = -40°C to +125°C, unless otherwise noted. Typical values are at V+ = +3.3V, T = +25°C.) (Note 1)
A
A
PARAMETER
SYMBOL
CONDITIONS
= -40°C to +125°C
MIN
TYP
MAX
5.50
1.6
UNITS
Operating Supply Voltage
Power-On Reset Voltage
V+
T
1.71
V
V
A
V
V+ falling
POR
Standby Current
(Interface Idle)
SCL and SDA and other
digital inputs at V+
T = -40°C to
A
+125°C
T = -40°C to
A
I
0.6
23
1.9
55
µA
µA
V
STB
Supply Current
(Interface Running)
f
= 400kHz; other
SCL
I+
digital inputs at V+
+125°C
V+ < 1.8V
0.8 x V+
0.7 x V+
Input High-Voltage
SDA, SCL, AD0, AD2, RST, P2–P5
V
IH
V+ ≥ 1.8 V
V+ < 1.8V
0.2 x V+
0.3 x V+
Input Low-Voltage
SDA, SCL, AD0, AD2, RST, P2–P5
V
V
IL
V+ ≥ 1.8 V
Input Leakage Current
SDA, SCL, AD0, AD2, RST, P2–P5
SDA, SCL, AD0, AD2, RST, P0–P7 at V+
or GND, internal pullup disabled
I , I
IH IL
-0.2
+0.2
µA
pF
Input Capacitance
SDA, SCL, AD0, AD2, RST, P2–P5
10
V+ = 1.71V, I
V+ = 1.71V, I
= 5mA (QSOP)
= 5mA (TQFN)
90
90
180
230
210
260
230
280
250
300
SINK
SINK
V+ = 2.5V, I
V+ = 2.5V, I
V+ = 3.3V, I
V+ = 3.3V, I
= 10mA (QSOP)
= 10mA (TQFN)
= 15mA (QSOP)
= 15mA (TQFN)
110
SINK
SINK
SINK
SINK
110
Output Low Voltage
O8–O15, P0, P7
V
mV
OL
130
130
V+ = 5V, I
V+ = 5V, I
= 20mA (QSOP)
= 20mA (TQFN)
140
SINK
SINK
140
V+ = +1.71V, I
= 2mA
V+ - 250
V+ - 360
V+ - 30
V+ - 70
SOURCE
V+ = +2.5V, I
V+ = +3.3V, I
= 5mA
= 5mA
Output High Voltage
O0, O1, O6–O15, P2–P5
SOURCE
SOURCE
V
mV
OH
V+ - 260 V+ - 100
V+ - 360 V+ - 120
V+ = +5V, I
= 10mA
SOURCE
Output Low-Voltage SDA
Output Low-Voltage INT
Port Input Pullup Resistor
V
I
= 6mA
250
250
55
mV
mV
kΩ
OLSDA
SINK
SINK
V
I
= 5mA
130
OLINT
R
PU
25
40
2
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