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

Maxim

Datasheet Details

The MAX7301 compact, serial-interfaced I/O expander (or general-purpose I/O (GPIO) peripheral) provides microprocessors with up to 28 ports.

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™-/.

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Maxim MAX7301-like datasheet

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