MAX7300

Application

White Goods Industrial Controllers Automotive System Monitoring


Pinout




Specifications

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)
P4P31 Current ................................................................±30mA
GND Current .....................................................................800mA
Continuous Power Dissipation (TA = +70°C)
28-Pin PDIP (derate 20.8mW/°C above +70°C).........1667mW
28-Pin SSOP (derate 9.5mW/°C above +70°C) ...........762mW
36-Pin SSOP (derate 11.8mW/°C above +70°C) .........941mW
40-Pin QFN (derate 23.25mW/°C aboveTA = +70°C)..1860mW
Operating Temperature Range
(TMIN to TMAX) ...............................................-40°C to +125°C
Junction Temperature......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C


Description

The MAX7300 compact, serial-interfaced, I/O expan-
sion peripheral provides microprocessors with up to 28
ports. Each port is individually user configurable to
either a logic input or logic output.
Each port can be configured as either a push-pull logic
output capable of sinking 10mA and sourcing 4.5mA, or a
Schmitt logic input with optional internal pullup. Seven
ports feature configurable transition detection logic, which
generates an interrupt upon change of port logic level.
The MAX7300 is controlled through an I 2 C™-compatible
2-wire serial interface, and uses four-level logic to allow 16 I 2
C addresses from only two select pins.
The MAX7300AAX and MAX7300AGL have 28 ports and are available in 36-pin SSOP and 40-pin QFN packages,respectively. The MAX7300AAI and MAX7300ANI
have 20 ports and are available in 28-pin SSOP and 28-
pin DIP packages, respectively.