MAX7301AGL

♦ High-Speed 26MHz SPI-/QSPI-™/MICROWIRE™-Compatible Serial Interface
♦ 2.5V to 5.5V Operation
♦ -40°C to +125°C Temperature Range
♦ 20 or 28 I/O Ports, Each Configurable as
   Push-Pull Logic Output
   Schmitt Logic Input
   Schmitt Logic Input with Internal Pullup
♦ 11A (max) Shutdown Current
♦ Logic Transition Detection for Seven I/O Ports

The MAX7301AGL compact, serial-interfaced I/O expander (or general-purpose I/O (GPIO) peripheral) provides microprocessors with up to 28 ports. Each port is individually user configurable to either a logic input or logic
output.
Each port of MAX7301AGL can be configured either as 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 MAX7301AGL is controlled through an SPI™-compatible 4-wire serial interface.
The MAX7301AAX and MAX7301AGL have 28 ports and are available in 36-pin SSOP and 40-pin QFN packages,
respectively. The MAX7301AAI and MAX7301ANI have 20 ports and are available in 28-pin SSOP and 28-pin DIP
packages, respectively.
For a 2-wire interfaced version, refer to the MAX7300 data sheet. For a pin-compatible port expander with additional
24mA constant-current LED drive capability, refer to the MAX6957 data sheet.