GENERAL DESCRIPTION
Together with low-cost pushbutton switches and 1% resistors, the MAX11041/MAX11042 are total solutions over a single-wire interface. A wired remote controller easily piggybacks to a standard 3.5mm headphone jack using a fourth contact or one of the audio signals. To conserve battery life, the MAX11041/MAX11042 consume only 5µA (typ) while reading keypresses in real time without microprocessor (µP) polling. An 8-word FIFO buffer records up to four keypress events to allow plenty of time for the application processor to respond to the MAX11041/MAX11042. The MAX11041/MAX11042 include ±15kV ESD protection devices on the FORCE and SENSE inputs to ensure IEC 61000-4-2 compliance without any external ESD devices. The MAX11041/MAX11042 are available in 12-bump UCSP™ and 12-pin TQFN packages. The devices are specified over the extended temperature range (-40°C to +85°C). FEATURES
♦ Detect Up to Six (MAX11042) or 30 (MAX11041) Different Keys and Jack Insertion/Removal ♦ Work...
Maxim Integrated
