AT42QT2100-AU Datasheet, PDF (3/44 Pages) ATMEL Corporation – QTouch Touch Sensor IC

1. Pinout and Schematic
1.1 Pinout Configuration
SNSKB2
SNSB3
SNSKB3
VDD
VSS
SNSKB4
SNSB4
SNSB5
32 31 30 29 28 27 26 25
1
24
2
23
3
22
4
21
QT2100
5
20
6
19
7
18
8
17
9 10 11 12 13 14 15 16
SNSKA1
SNSA1
SPREAD
VSS
CHANGE
DRDY
VDD
SCK
1.2 Pin Descriptions
Table 1-1. Pin Listing
Pin
Name
1
SNSKB2
2
SNSB3 ⁽¹⁾
3
SNSKB3
4
VDD
5
VSS
6
SNSKB4
7
SNSB4 ⁽¹⁾
8
SNSB5 ⁽¹⁾
9
SNSKB5
10
SNSKB6
11
SNSKB7
12
SNSB6 ⁽¹⁾
Type
I/O
I/O
I/O
P
P
I/O
I/O
I/O
I/O
I/O
I/O
I/O
Function
Sense pin. Connect to any CsB + Key
Sense pin. Connect to CsB3
Sense pin. Connect to any CsB + Key
Power
Ground
Sense pin. Connect to any CsB + Key
Sense pin. Connect to CsB4
Sense pin. Connect to CsB5
Sense pin. Connect to any CsB + Key
Sense pin. Connect to any CsB + Key
Sense pin. Connect to any CsB + Key
Sense pin. Connect to CsB6
If Unused, Connect To...
Open
Open
Open
-
-
Open
Open
Open
Open
Open
Open
Open
AT42QT2100 [DATASHEET]
3
9554E–AT42–01/13