It accepts logic-level inputs and outputs logic-level interrupt and data signals, making it a drop-in peripheral for any system with an I2C bus. Its 50 µA supply current suits always-on keypad scanning in battery-powered handhelds, portable instruments, and control panels where every microamp matters.
Active lifecycle — no obsolescence watch needed
ROHS3 compliant per.
Where it lands in the shortage cycle
This is a mature, active part with steady demand — not a shortage-flagged line. Lead times through franchised distribution typically run a few weeks; independent stock is available for spot fills when allocation squeezes the channel. The 50 µA draw means it's not a high-power part that would trigger allocation on fab capacity alone.