Rainbow-electronics MAX11042 Manual de usuario

General DescriptionThe MAX11041/MAX11042 wired remote controllersconvert up to six or 30 different pushbuttons into anI2C* register. Together with low

MAX11041/MAX110424) The MAX11041/MAX11042 send the latest keypresstype (K7–K0) stored in the FIFO starting with themost-significant bit. Afterwards th

MAX11041/MAX11042Wired Remote Controllers___________________________________________________________________________________ 11*Values outside FIFO re

MAX11041/MAX11042Bit TransferOne data bit is transferred during each SCL clock cycle.The data on SDA must remain stable during the highperiod of the S

Order of Keypress DetectionSome applications require detection of the specificsequence of keys in software by looking for unique keypresses within 32

MAX11041/MAX11042Wired Remote Controllers14 ______________________________________________________________________________________Figure 10. Power-Up,

MAX11041/MAX11042Wired Remote ControllersFunctional DiagramINTA1A0SCLSDAVDDGNDSENSESHDN8-WORDFIFOFORCEDEBOUNCEI2CINTERFACE8-BITKEY8-BITDURATIONDURATIO

MAX11041/MAX11042Wired Remote Controllers16 ______________________________________________________________________________________Typical Operating Ci

MAX11041/MAX11042Wired Remote ControllersPackage Information(The package drawing(s) in this data sheet may not reflect the most current specifications

MAX11041/MAX11042Wired Remote ControllersMaxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim

MAX11041/MAX11042Wired Remote Controllers2 _______________________________________________________________________________________ABSOLUTE MAXIMUM RAT

MAX11041/MAX11042Wired Remote ControllersELECTRICAL CHARACTERISTICS (continued)(VDD= +1.6V to 3.6V, CSENSE= 10nF, RSENSE= 10kΩ, TA= TMIN to TMAX, unle

MAX11041/MAX11042Wired Remote Controllers4 _______________________________________________________________________________________Note 1: Recommended

MAX11041/MAX11042Wired Remote Controllers10ms/divVSENSEINTMAX11041/42 TOC01µP READS FIFODEBOUNCED KEYADDED TO FIFODEBOUNCE SCOPE SHOT (FALLING)10ms/di

MAX11041/MAX11042Detailed DescriptionThe MAX11041/MAX11042 wired remote controllersrecognize either six or 30 different keypresses consist-ing of a re

MAX11041/MAX11042Wired Remote ControllersRSENSECSENSEFORCE10kΩ10nFSENSEHOLDSWITCHWIRED REMOTE CONTROLLERRJACKTOAUDIOCIRCUITJACK/PLUGCONNECTIONRSW0RSW1

MAX11041/MAX11042Keypress Detection and DebounceAt power-up, the MAX11041/MAX11042 begin to moni-tor the SENSE input for keypresses. When theMAX11041/

Reading the FIFO While the Key is Still PressedWhen a valid keypress occurs, INT goes low, signalingto the processor that a key has been pressed (seeF