at42qt1011 ATMEL Corporation, at42qt1011 Datasheet - Page 2

• Manufacturer Part Number: at42qt1011
• Description: One-channel Touch Sensor Ic
• Manufacturer: ATMEL Corporation

1. Pinout and Schematic
1.1
1.2
Table 1-1.
1.3
2
Name
SNSK
SYNC
OUT
SNS
Vdd
Vss
Pinout Configuration
Pin Descriptions
Schematic
AT42QT1011
Pin Listing
Pin
1
2
3
4
5
6
Figure 1-1.
Type
I/O
I/O
O
P
P
I
Output state
Supply ground
Sense pin
Sense pin
Power
SYNC and Mode Input
I
O
Basic Circuit Configuration
Comments
SNSK
Input only
Output only, push-pull
OUT
VSS
1
OUT
1
2
3
Note: A bypass capacitor should be tightly wired
between Vdd and Vss and kept close to pin 5.
SYNC/MODE
VDD
VDD
–
–
Cs + Key
Cs
–
Pin is either SYNC/Slow/Fast Mode, depending on logic level
applied (see
6
5
4
VSS
5
2
SYNC/MODE
VDD
SNS
SNSK
SNS
Section 3.1 on page
3
4
6
I/O
P
If Unused, Connect To...
Cs
Input and output
Ground or power
Rs
4)
ELECTRODE
SENSE
Cx
9542G–AT42–03/10