MAX7317 Datasheet (Maxim Integrated) - 10-Port SPI-Interfaced I/O Expander

MAX7317, 10-Port SPI-Interfaced I/O Expander

The MAX7317 serial-interfaced peripheral provides microprocessors with 10 I/O ports rated to 7V.

Each port can be individually configured as either an open-drain output, or an overvoltage-protected Schmitt input.

The MAX7317 supports hot insertion.

All port pins remain high impedance in power-down (

MAX7317 Features

* Industry-Standard 4-Wire Interface Simplifies I/O Ports Expansion Independent of Microprocessor Architecture

* High-Speed, 26MHz, SPI-/QSPI™-/MICROWIRE®Compatible Serial Interface

* 2.25V to 3.6V Operation

* Protection Circuitry Ensures Robust Operation