The MAX7365 is an I2C-interfaced peripheral that providesmicroprocessors with management of up to 56 keyswitches.Key codes generated for each keypress and releaseenable easier implementation of multiple key entries. Keyinputs monitored statically, not dynamically, ensure low-EMI operation. The switches can be metallic or resistive(carbon) with up to 5kI of resistance.The device features autosleep and autowake to furtherminimize the power consumption of the device. Theautosleep feature puts the device in a low-power state(1FA typ) after a programmable sleep timeout period.The autowake feature configures the device to return tonormal operating mode from sleep upon a keypress.