Rainbow Electronics AT42QT1110-AZ - Manual (Page 3)

3
9570H–AT42–02/10
AT42QT1110-MZ/AT42QT1110-AZ
1.2 Pin Descriptions
I Input only I/O Input and output
O Output only, push-pull OD Open drain output P Ground or power
Table 1-1. Pin Listing
Pin Name Type Comments If Unused, Connect To...
1 SNS0K I/O Sense Pin Leave open
2 SNS1 I/O Sense Pin Leave open
3 SNS1K I/O Sense Pin Leave open
4 Vdd P Power –
5 Vss P Supply Ground –
6 SNS2K I/O Sense Pin Leave open
7 SNS2 I/O Sense Pin Leave open
8 SNS3 I/O Sense Pin Leave open
9 SNS3K I/O Sense Pin Leave open
10 SNS4 I/O Sense Pin Leave open
11 SNS4K I/O Sense Pin Leave open
12 SNS5 I/O Sense Pin Leave open
13 SNS5K I/O Sense Pin Leave open
14 SS I Enable SPI
Vss via 100 k
 resistor to enable SPI
Vdd via 100 k
 resistor to disable SPI
15 MOSI I SPI Data In Leave open
16 MISO O SPI Data Out Leave open
17 SCK I SPI Clock Leave open
18 Vdd P Power –
19 SNS6K I/O Sense Pin Leave open
20 SNS6 I/O Sense Pin Leave open
21 Vss P Supply Ground –
22 SNS7K/DETECT0 I/O Sense Pin/Key Status Indicator Leave open
23 SNS7/DETECT1 I/O Sense Pin/Key Status Indicator Leave open
24 SNS8/DETECT2 I/O Sense Pin / Key Status Indicator Leave open
25 SNS8K/DETECT3 I/O Sense Pin / Key Status Indicator Leave open
26 SNS9/DETECT4 I/O Sense Pin / Key Status Indicator Leave open
27 SNS9K/DETECT5 I/O Sense Pin / Key Status Indicator Leave open
28 CHANGE OD Touch Event Indicator Leave open
29 RESET I Reset Vdd
30 SNS10/DETECT6 I/O Sense Pin / Key Status Indicator Leave open
31 SNS10K/SYNC I/O Sense Pin / Synchronization Input Vdd or Vss via 100 k
 resistor
32 SNS0 I/O Sense Pin Leave open