Rainbow Electronics AT42QT4160 User Manual
Qfield, Features, Pin-out and pin listing descriptions
Note: This is a summary document. A
complete document is available under
NDA. For more information contact
www.atmel.com/touchscreen.
Features
•
QField
™
Touchscreen:
– Up to 4.8 inches diagonal screen size supported
•
Technology:
– Patented spread-spectrum charge-transfer (transverse mode)
•
Panel Materials:
– Plastic, glass, composites, painted surfaces (low particle density metallic paints
possible)
•
Adjacent Metal:
– Compatible with grounded metal immediately next to sensing channels
•
Panel Thickness:
– 1 to 2 mm glass, 0.5 to 1.5 mm plastic
•
Interface:
– I
2
C-compatible slave mode, 100 kHz or 400 kHz
•
Moisture Tolerance:
– Best in class
•
Power:
– 1.8V to 5.5V (2.5V to 5.5V in high speed mode)
•
Packages:
– 32-pin 5 x 5 mm MLF RoHS compliant
•
Signal Processing:
– Self-calibration, auto drift compensation, noise filtering
•
Applications:
– Mobile electronics, terminals, appliances
•
Patents:
– QMatrix
™
(patented Charge-transfer method)
– QField (patented Charge-transfer method, patent-pending QField optimized for
one-layer sensor element designs)
1.
Pin-out and Pin Listing Descriptions
1.1
Device Pin-out
Y2A
Y1A
Y0A
RST
SCL
SDA
Y3B
Y2B
Vss
VREF
SMP
X0
X1
X2
X3
N/C
Y3A
CHANGE
Vss
Vdd
Vss
Vdd
N/C
N/C
N/C
Vdd
Vdd
Vss
A0
Y0B
Y1B
1
2
3
4
5
6
7
8
17
18
19
20
21
22
23
24
32 31 30 29 28 27 26 25
9 10 11
16
15
14
13
12
AT42QT4160
Vdd
QField
™
10-bit
Touchscreen
Sensor IC
AT42QT4160
Summary
9507AS–AT42–10/08