IS31IO7325
DESCRIPTION
The IS31IO7325 2-wire serial-interfaced peripheral features
16 I/O ports. 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 INTB 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 20m A at 0.28V headroom and are capable of driving LEDs. The RSTB 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.
March 2024
FEATURES
- 400k Hz I2C serial interface
- 2.4V to 5.5V operation
-...
