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MAX11041, MAX11042 pdf datashe
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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 a 12-pin
TQFN package. The devices are specified over the
extended temperature range (-40°C to +85°C).
Applications
Multimedia Controls for
Multimedia-Enabled
Cell Phones
Keyboard Encoder for
Slider, Flip, and other
Cell Phones
Portable Media Players
MP3, CD, DVD Players
PDAs
Digital Still Cameras
PDA Accessory
Keyboards
Multimedia Desktop
Speakers
Portable Game
Consoles
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