SX1504 Datasheet, Semtech Corporation

* 4/8/16 channel of I/Os True bi-directional style I/O Programmable Pull-up/Pull-down Push/Pull outputs 2.5V to 5.5V independent operating voltage for all supply rail.

The SX1504, SX1505 and SX1506 have the ability to generate mask-programmable interrupts based on falling/rising edge of.