MAX11800GTC/V+T Maxim Integrated Products, MAX11800GTC/V+T Datasheet - Page 31

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MAX11800GTC/V+T

Manufacturer Part Number
MAX11800GTC/V+T
Description
IC TOUCH SCREEN CTRLR LP 12WQFN
Manufacturer
Maxim Integrated Products
Type
Resistiver
Datasheet

Specifications of MAX11800GTC/V+T

Touch Panel Interface
4-Wire
Number Of Inputs/keys
1 TSC
Resolution (bits)
12 b
Data Interface
Serial, SPI™
Data Rate/sampling Rate (sps, Bps)
105k
Voltage - Supply
1.7 V ~ 3.6 V
Operating Temperature
-40°C ~ 105°C
Mounting Type
Surface Mount
Package / Case
12-WQFN Exposed Pad
Voltage Supply Source
Single Supply
Sampling Rate (per Second)
105k
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
The MAX11800/MAX11801 perform measurements
automatically and inform the AP when they are com-
plete in autonomous conversion mode, reducing data
Figure 14. State Machine Transitions––Autonomous Conversion Mode—MAX11800/MAX11801
Low-Power, Ultra-Small Resistive Touch-Screen
Autonomous Conversion Mode
NO
______________________________________________________________________________________
POWER-DOWN
X MEAS
X PSU
X AVG
DONE
PUR
PUF
ACM REQUEST
YES
Controllers with I
NO
XYZ1 OR
NO
Y MEAS
XYZ1Z2
Y PSU
Y AVG
MODE
DONE
DATA
PUR
PUF
TAG
YES
TOUCH
NOT PRESENT
YES
PRESENT
TOUCH
NO
transfers on the serial bus as well as generating fewer
interrupt requests. Figure 14 shows the state machine
transitions for autonomous conversion mode.
(WAIT scanp)
NO TOUCH
Z1 MEAS
LPM
TDM
NO
Z1 AVG
Z PSU
DONE
XYZ1Z2
MODE
YES
INITIAL
TOUCH
YES
2
C/SPI Interface
NO
WAIT TINIT
Z2 MEAS
Z2 AVG
DONE
YES
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