MAX7300 - 20-Port or 28-Port I/O Expander
The MAX7300 compact, serial-interfaced, I/O expansion 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 4.5m
MAX7300 Features
* 400kbps I2C-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
* 11µA (max) Shutdo