MAX7300 2-Wire-Interfaced, 2.
5V to 5.
5V, 20-Port or 28-Port I/O Expander General Description 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.
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 I2C-compatible 2-wire serial interface, and uses four-level logic to allow 16 I2C addr...

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