Datasheet
MAX7310
2-Wire-Interfaced 8-Bit I/O Port Expander
with Reset
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.
V+ to GND ................................................................-0.3V to +6V
I/O1–I/O7 as an Input.......................(V
SS
- 0.3V) to (V
DD
+ 0.3V)
I/O0 as an Input..............................................(V
SS
- 0.3V) to +6V
SCL, SDA, AD0, AD1, AD2, RESET ...............(V
SS
- 0.3V) to +6V
DC Current on I/O0 ........................................................ +400µA
DC Current on I/O1 to I/O7 ............................................. ±50mA
Maximum GND and V+ Current........................................180mA
Continuous Power Dissipation (T
A
= +70°C)
16-Pin TSSOP (derate 5.7mW/°C above +70°C) .........457mW
16-Pin QSOP (derate 8.3mW/°C above +70°C)...........667mW
16-Pin Thin QFN (derate 16.9mW/°C above +70°C) ...1349mW
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
DC ELECTRICAL CHARACTERISTICS
(V+ = 2.3V to 5.5V, GND = 0, RESET = V+, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at V+ = 3.3V, T
A
= +25°C.)
(Note 1)
PARAMETER SYM B O L CONDITIONS MIN TYP MAX UNITS
Supply Voltage V+ 2.3 5.5 V
V+ = 2.3V 19 30
V+ = 3.3V 29 40Supply Current I+
All outputs floating,
all inputs at V+ or GND,
f
SCL
= 400kHz
V+ = 5.5V 65 80
µA
V+ = 2.3V 1.5 3.4
V+ = 3.3V 1.7 3.9Standby Current
All outputs floating,
all inputs at V+ or GND,
f
SCL
= 0
V+ = 5.5V 2.1 5
µA
Power-On Reset Voltage 1.6 2.1 V
SCL, SDA
Input Voltage Low V
IL
0.8 V
Input Voltage High
V
IH
2V
Low-Level Output Voltage V
OIL
I
SINK
= 6mA 0.4 V
Leakage Current I
L
-1 +1 µA
Input Capacitance C
I
10 pF
I/Os
Input Voltage Low V
IL
0.8 V
Input Voltage High V
IH
2V
Input Leakage Current I
L
All inputs at V+ or GND -1 +1 µA
V+ = 2.3V, V
OL
= 0.5V 8 14
V+ = 3.3V, V
OL
= 0.5V 12.5 22
Low-Level Output Current I
OL
V+ = 5.5V, V
OL
= 0.5V 19 30
mA
V+ = 3.3V, V
OH
= 2.4V 6.5 11
High Output Current for I/O1–I/O7 I
OH
V+ = 5.5V, V
OH
= 4.5V 12.5 18
mA
AD0, AD1, AD2, AND RESET
Input Voltage Low 0.8 V
Input Voltage High 2V