MIC74 Datasheet (Micrel Semiconductor) - 2-Wire Serial I/O Expander and Fan Controller Advance Information

MIC74, 2-Wire Serial I/O Expander and Fan Controller Advance Information

The MIC74 is a fully programmable serial-to-parallel I/O expander compatible with the SMBus™ (system management bus) protocol.

It acts as a “slave” on the bus, providing eight independent I/O lines.

Each I/O bit can be individually programmed as an input or output.

If programmed as an output, each I

MIC74 Features

* Provides eight bits of general purpose I/O

* Built in fan speed control logic (optional)

* 2-wire SMBus™/I2C™ compatible serial interface plus interrupt output

* 2.7V to 3.6V operating voltage range

* 5V-tolerant I/O

* Low quiescent current: 2µA (typ