The SX1503 is a 16 channels General Purpose parallel Input/Output expander. More information at Semtech dedicated page.
- 16 channels of I/Os
- 1.2 V to 5.5 V independent operating voltage for all supply rails
- 400 kHz I2C interface
- Ultra low current consumption of typ. 1 uA
- Temperature range: -40 - +85 °C
Here below, the Zerynth driver for the Semtech SX1503.