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IS31IO7328
MULTI-FUNCTION I/O DRIVER
GENERAL DESCRIPTION
The IS31IO7328 2-wire serial-interfaced peripheral features 8 I/O ports. Ports are divided into four push pull I/Os and four open-drain I/Os and transition detection.
Any of the 8 I/O ports can be configured as an input or an output. All I/O ports configured as inputs are continuously monitored for state changes (transition detection). State changes are indicated by the INTB output. The interrupt is latched, allowing detection of transient changes. When the IS31IO7328 is subsequently read through the serial interface, any pending interrupt is cleared.
The open-drain outputs are rated to sink 20mA at 0.28V headroom and are capable of driving LEDs.
IS31IO7328 Datasheet
