MXT1664T3-ABESSQTP datasheet(91/98 Pages) MICROCHIP

91 / 98 page

 2018 Microchip Technology Inc.

DS40002054A-page 91

MXT1664T3 2.0

INDEX

Absolute maximum specifications ............................................... 69

ADDSEL pin .......................................................................... 33, 34

Analog I/O ................................................................................... 62

Analog voltage supply ................................................................. 70

Automatic selection of of I2C and HID-I2C modes ...................... 32

AVdd voltage supply ................................................................... 70

Calibration ................................................................................... 29

Capacitive Touch Engine (CTE).................................................. 16

Charge time................................................................................. 29

Checksum in I2C writes ............................................................... 34

CHG line

HID-I2C................................................................................ 48

I2C ....................................................................................... 37

mode 0 operation ................................................................ 38

mode 1 operation ................................................................ 38

Clock stretching..................................................................... 39, 48

COMMSEL pin ............................................................................ 32

Communications ......................................................................... 32

automatic selection of I2C and HID-I2C modes................... 32

COMMSEL pin .................................................................... 32

communication mode selection........................................... 32

HID-I2C. See HID-I2C communications

I2C mode selection.............................................................. 32

I2C. See I2C communications

I2CMODE pin ...................................................................... 32

USB. See USB communications

Component placement and tracking ........................................... 62

Connection Information see Pinouts ............................................. 3

Crystal oscillator.......................................................................... 62

Customer Change Notification Service ....................................... 95

Customer Notification Service..................................................... 95

Customer Support ....................................................................... 95

DC characteristics ....................................................................... 70

Debugging................................................................................... 68

object-based protocol.......................................................... 68

self test................................................................................ 68

SPI Debug Interface...................................................... 23, 68

USB debug interface ........................................................... 68

Decoupling capacitors ........................................................... 21, 60

Detailed operation ....................................................................... 29

Detection integrator..................................................................... 29

Device

overview .............................................................................. 16

Digital filtering.............................................................................. 30

Digital signals .............................................................................. 62

Digital voltage supply .................................................................. 70

Digitizer HID USB interface................................................... 49, 57

maximum touches (surface contacts) report ....................... 59

touch hardware quality assurance (THQA) report............... 59

touch report ......................................................................... 57

Digitizer HID-I2C top-level collection ..................................... 40, 46

maximum touches (surface contacts) report ....................... 48

touch hardware quality assurance (THQA) report............... 48

touch report ......................................................................... 46

Direct Memory Access ................................................................ 35

EMC problems ............................................................................ 62

ESD information .......................................................................... 83

Generic HID USB interface....................................................49, 50

auto-return messages..........................................................52

Read/Write memory map.....................................................50

reading from the device .......................................................52

start debug monitoring command ........................................55

stop debug monitoring command ........................................56

writing to the device .............................................................51

Generic HID-I2C top-level collection ......................................40, 41

read/write memory map command ......................................41

send auto-return command .................................................43

Glove detection............................................................................31

GPIO pins ....................................................................................23

Grip suppression..........................................................................30

Ground tracking ...........................................................................60

HID descriptor

HID-I2C ................................................................................40

HID-I2C communications .......................................................40–48

CHG line ..............................................................................48

clock stretching ....................................................................48

digitizer HID-I2C. See Digitizer HID-I2C top-level collection

generic HID-I2C. See Generic HID-I2C top-level collection

HID descriptor......................................................................40

I2C mode selection ..............................................................32

I2CMODE pin ......................................................................32

Microsoft Windows compliance ...........................................48

power control .......................................................................48

report IDs .............................................................................40

SCL line ...............................................................................48

SDA line...............................................................................48

specification ...................................................................40, 82

I/O pins ........................................................................................21

I2C communications...............................................................34–39

address selection...........................................................33, 34

ADDSEL pin ..................................................................33, 34

CHG line ..............................................................................37

clock stretching ....................................................................39

I2C mode selection ..............................................................32

I2CMODE pin ......................................................................32

reading from the device .......................................................35

reading messages with DMA ...............................................35

SCL line ...............................................................................38

SDA line...............................................................................38

specification .........................................................................82

writes in checksum mode ....................................................34

writing to the device .............................................................34

I2C interface

SCL line .........................................................................21, 38

SDA line.........................................................................21, 38

I2CMODE pin...............................................................................32

Input/Output characteristics .........................................................82

Internet Address ..........................................................................95

Junction temperature ...................................................................83

Lens bending ...............................................................................30

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