IS31IO7325
Key Features
- Ports are divided into eight push pull I/Os and eight open-drain I/Os and transition detection
- Any of the 16 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 INT output
- The interrupt is latched, allowing detection of transient changes
- When the IS31IO7325 is subsequently read through the serial interface, any pending interrupt is cleared
- The open-drain outputs are rated to sink 20mA at 0.22V headroom, and are capable of driving LEDs
- The RST input clears the serial interface, terminating any I2C munication to or from the IS31IO7325
- The IS31IO7325 uses two address inputs to allow 4 I2C slave addresses
- The slave address also determines the power-up logic state for the I/O ports
