AT42QT2161-MMU Atmel, AT42QT2161-MMU Datasheet - Page 2

• Manufacturer Part Number: AT42QT2161-MMU
• Description: IC TOUCH SENSOR 16KEY QFN M-MOD
• Manufacturer: Atmel
• Type: Capacitiver

Specifications of AT42QT2161-MMU

• Touch Panel Interface: 8, 2-Wire
• Number Of Inputs/keys: 16 Key, Slider
• Resolution (bits): 10 b
• Data Interface: I²C, Serial
• Voltage Reference: Internal
• Voltage - Supply: 1.8 V ~ 5.5 V
• Current - Supply: 1.14mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 28-VFQFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1. Pinout and Schematic
1.1
1.2
2
Pinout Configuration
Pin Description
AT42QT2161
Table 1-1.
CHANGE
Pin
10
11
12
13
1
2
3
4
5
6
7
8
9
GPIO2
GPIO3
VDD
VSS
X6
X7
Pin Listing
CHANGE
Function
GPIO2
GPIO3
SMP
Vref
Vdd
2
Vss
4
5
6
1
3
7
X6
X7
X0
X1
X2
X3
28 27 26 25 24 23 22
8 9
10
QT2161
11
OD
I/O
I/O
I/O
O
O
O
O
O
O
O
P
P
P
12
13
General purpose input/output 2
General purpose input/output 3
State change notification
Power
Ground
X matrix drive line / shared GPO X6
X matrix drive line / shared GPO X7
Ground
Sample output.
X matrix drive line / shared GPO X0
X matrix drive line / shared GPO X1
X matrix drive line / shared GPO X2
X matrix drive line / shared GPO X3
14
21
20
18
16
19
17
15
I2CA0
Y1B
Y0B
VSS
VDD
VDD
X5
Comments
Connect To...
9614A–AT42–08/10
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If Unused,
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