SX1504 gpio equivalent, (sx1504 - sx1506) 4/8/16 channel gpio.
* 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.
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