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FULL DATA SHEET (PDF, 316kB) Download   E-Mail The MAX11041/MAX11042 wired remote controllers convert up to six or 30 different pushbuttons into an I²C register. 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. The devices send the debounced keypress along with key duration to the application processor over the I²C interface. 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).

Key Features		Applications/Uses
Detect Up to Six (MAX11042) or 30 (MAX11041) Different Keys and Jack Insertion/Removal Work with Either 32Ω or 16Ω Headphones Add Remote-Control Functionality to Devices Using a Simple Resistor and Switch Array Low-Power Operation Consuming a Supply Current of Only 5µA (typ) Work with Standard 2.5mm or 3.5mm 4-Pin Headphone Jacks Support Hold Function to Lockout Keys 100kHz/400kHz I²C Interface Single 1.6V to 3.6V Supply Voltage Range ±15kV ESD Protection (IEC 61000-4-2)		Digital Still Cameras Keyboard Encoder for Slider, Flip, and Other Cell Phones MP3, CD, DVD Players Multimedia Controls for Multimedia-Enabled Cell Phones Multimedia Desktop Speakers PDA Accessory Keyboards PDAs Portable Game Consoles Portable Media Players

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