Key-switch controller with I2C — what it is and where it fits
The MAX7360ETL+ from Analog Devices is a dedicated I2C key-switch controller that offloads keypad scanning, debounce, and FIFO buffering from the main MCU. 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. The -40°C to 85°C operating range covers outdoor telecom base stations, factory-floor HMI panels, and automotive cabin environments.
Active lifecycle — no obsolescence watch needed
There is no NRND or EOL notice on this part, so you can qualify it into a new BOM without planning a last-time-buy or a respin. 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.