MAX7301 Datasheet (Maxim) - 20-Port and 28-Port I/O Expander

MAX7301, 20-Port and 28-Port I/O Expander

The MAX7301 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 can be configured either as a push-pull logic output capable of

MAX7301 Features

* Industry-Standard 4-Wire Interface Simplifies Expansion of I/O Ports to Up to 28 I/Os Independent of Microprocessor Architecture

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

* 2.25V to 5.5V Operation

* 20 or 28 I/O Ports Configurable as