onsemi Interface - I/O Expanders FXL6408UMX

The FXL6408UMX is an 8-bit I2C-controlled GPIO expander designed to enhance the I/O capabilities of connected processors. It features eight independently configurable I/O ports that can be set to either input or output mode. In input mode, the device can monitor data transitions and signal changes via an interrupt pin (INT), which is active low and requires an external pull-up resistor. The GPIO pins can deliver an output drive of up to 6 mA, making them suitable for various applications. This expander supports voltage translation from 1.65 V to 4.0 V, allowing compatibility with a range of logic levels. It has a low-power quiescent current of 1.5 ¬µA, making it energy-efficient for battery-operated devices. The FXL6408UMX also includes features such as an active low reset input, power-on reset (POR) circuitry, and I2C software reset options, ensuring reliable operation. The device operates within a temperature range of -40¬8C to +85¬8C and is packaged in a 16-lead ultra-thin molded leadless package, suitable for space-constrained applications.