Datasheet

Voltage (with respect to GND)
V+ ............................................................................-0.3V to +6V
SCL, SDA, AD0, AD1 ..............................................-0.3V to +6V
All Other Pins ..............................................-0.3V to (V+ + 0.3V)
P4–P31 Current ...............................................................±30mA
GND Current ....................................................................800mA
Continuous Power Dissipation (T
A
= +70°C)
28-Pin SSOP (derate 9.1mW/°C above +70°C) ..........727mW
28-Pin TQFN (derate 21.3mW/°C above +70°C) ......1702mW
36-Pin SSOP (derate 11.8mW/°C above +70°C) ........941mW
40-Pin TQFN (derate 26.3mW/°C above T
A
= +70°C) ....2105mW
Operating Temperature Range
T
MIN
to T
MAX
) ............................................... -40°C to +125°C
Junction Temperature ...................................................... +150°C
Storage Temperature Range ............................ -65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow)
Lead (Pb)-free packages ............................................. +260°C
Packages containing lead (Pb) ....................................+240°C
(Typical Operating Circuit, V
V+
= 2.5V to 5.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Operating Supply Voltage V+ 2.5 5.5 V
Shutdown Supply Current I
SHDN
All digital inputs at
V+ or GND
T
A
= +25°C 5.5 8
µAT
A
= -40°C to +85°C 10
T
MIN
to T
MAX
11
Operating Supply Current I
GPOH
All ports programmed
as outputs high, no
load, all other inputs
at V+ or GND
T
A
= +25°C 180 240
µAT
A
= -40°C to +85°C 260
T
MIN
to T
MAX
280
Operating Supply Current I
GPOL
All ports programmed
as outputs low, no
load, all other inputs
at V+ or GND
T
A
= +25°C 170 210
µAT
A
= -40°C to +85°C 230
T
MIN
to T
MAX
240
Operating Supply Current I
GPI
All ports programmed
as inputs without
pullup, ports, and all
other inputs at V+ or
GND
T
A
= +25°C 110 135
µAT
A
= -40°C to +85°C 140
T
MIN
to T
MAX
145
INPUTS AND OUTPUTS
Logic High Input Voltage
Port Inputs
V
IH
0.7 x
V+
V
Logic Low Input Voltage
Port Inputs
V
IL
0.3 x
V+
V
Input Leakage Current I
IH
, I
IL
GPIO inputs without pullup,
V
PORT
= V+ to GND
-100 ±1 +100 nA
GPIO Input Internal Pullup to V+ I
PU
V
V+
= 2.5V 12 19 30
µA
V
V+
= 5.5V 80 120 180
Hysteresis Voltage GPIO Inputs DV
I
0.3 V
www.maximintegrated.com
Maxim Integrated │ 2
MAX7300 2-Wire-Interfaced, 2.5V to 5.5V,
20-Port or 28-Port I/O Expander
Electrical Characteristics
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.
Absolute Maximum Ratings