Datasheet

MAX7320
I
2
C Port Expander with Eight Push-Pull Outputs
2 _______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
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.
(All voltages referenced to GND.)
Supply Voltage V+....................................................-0.3V to +6V
SCL, SDA, AD0, AD2, RST .......................................-0.3V to +6V
O0–07...............................................................0.3V to V+ + 0.3V
00–07 Output Current .......................................................±25mA
SDA Input Current.............................................................. 10mA
Total V+ Current..................................................................50mA
Total GND Current ...........................................................100mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin QSOP (derate 8.3mW/°C over +70°C)..............667mW
16-Pin Thin QFN (derate 15.6mW/°C over +70°C) ....1250mW
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
ELECTRICAL CHARACTERISTICS
(V+ = +1.71V to +5.5V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at V+ = +3.3V, T
A
= +25°C.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Supply Voltage V+ 1.71 5.50 V
Power-On Reset Voltage V
POR
1.6 V
Standby Current Voltage
(Interface Idle)
I
STB
SCL and SDA and other digital inputs at V+ 0.6 1.5 µA
Supply Current
(Interface Running)
I+ f
SCL
= 400kHz; other digital inputs at V+ 23 55 µA
V+ < 1.8V 0.8 x V+
Input High-Voltage
SDA, SCL, AD0, AD2, RST
V
IH
V+ ≥ 1.8V 0.7 x V+
V
V+ < 1.8V 0.2 x V+
Input Low-Voltage
SDA, SCL, AD0, AD2, RST
V
IL
V+ ≥ 1.8V 0.3 x V+
V
Input Leakage Current
SDA, SCL, AD0, AD2, RST
I
IH
, I
IL
SDA, SCL, AD0, AD2, RST, O0–O7 at V+ or
GND
-0.2 +0.2 µA
Input Capacitance
SDA, SCL, AD0, AD2, RST
10 pF
V+ = +1.71V, I
SINK
= 1mA 120 240
V+ = +2.5V, I
SINK
= 2mA 140 280
V+ = +3.3V, I
SINK
= 3mA 170 310
Output Low Voltage
O0–O7
V
OL
V+ = +5V, I
SINK
= 5mA 220 380
mV
V+ = +1.71V, I
SOURCE
= 1mA V+ - 250 V+ - 130
V+ = +2.5V, I
SOURCE
= 2mA V+ - 350 V+ - 200
V+ = +3.3V, I
SOURCE
= 3mA V+ - 290 V+ - 150
Output High Voltage
O0–O7
V
OH
V+ = +5V, I
SOURCE
= 5mA V+ - 380 V+ - 230
mV
Output Low Voltage SDA V
OLSDA
I
SINK
= 6mA 250 mV