AT42QT1111-MU Atmel, AT42QT1111-MU Datasheet - Page 38

• Manufacturer Part Number: AT42QT1111-MU
• Description: IC TOUCH SENSOR 11KEY QFN
• Manufacturer: Atmel
• Series: QTouch™r
• Type: Capacitiver

Specifications of AT42QT1111-MU

• Touch Panel Interface: 10, 2-Wire
• Number Of Inputs/keys: 11 Key
• Data Interface: Serial, SPI™
• Voltage Reference: Internal
• Voltage - Supply: 3 V ~ 5.5 V
• Current - Supply: 12mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 32-VFQFN Exposed Pad
• Output Type: Logic
• Interface: SPI
• Input Type: Logic
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: AT42QT1111-MU; AT42QT1111-MUTR

8. Specifications
8.1
8.2
8.3
Vdd = 5.0V, Cs = 4.7 nF, Rs = 1 M, Ta = recommended range, unless otherwise noted
8.4
38
Vdd
Max continuous pin current, any control or drive pin
Voltage forced onto any pin
EEPROM setups maximum writes
Operating temperature
Storage temperature
Vdd
Supply ripple + noise
Cx transverse load capacitance per key
Parameter
Parameter
Rrst
Iddr
Voh
T
T
Vih
Vol
Fm
Vil
Fc
Iil
PW
BS
Absolute Maximum Specifications
Recommended Operating Conditions
DC Specifications
Timing Specifications
AT42QT1111-MU/AT42QT1111-AU
CAUTION: Stresses beyond those listed under Absolute Maximum Specifications may cause permanent damage to the
device. This is a stress rating only and functional operation of the device at these or other conditions beyond those indicated
in the operational sections of this specification is not implied. Exposure to absolute maximum specification conditions for
extended periods may affect device reliability
Description
Average supply current, running
Low input logic level
High input logic level
Low output voltage
High output voltage
Input leakage current
Internal RST pull-up resistor
Description
Burst duration
Burst center frequency
Burst modulation, percentage
Pulse width
0.6 Vdd
0.8 Vdd
-0.5V
Min
Min
30
–
0
–
–
–
–
–
<0.05
9000
Typ
Vdd
Typ
40
18
–
–
–
–
–
6
-0.5 to +6V
±10 mA
-1.0V to (Vdd + 0.5) Volts
100,000 write cycles
-40°C to +°C
-65°C to +150°C
1.8V to 5.5V
±20 mV
2 to 20 pF
Vdd + 0.5V
12 at 5V
0.3 Vdd
8 at
Max
Max
Vdd
0.7
60
1
–
–
–
–
3V
Units
Units
kHz
mA
ms
k
µA
µs
%
V
V
V
V
4.7 nF Cs/parallel acquisition
Notes
For typical values
seeSection 8.8
10 mA sink current
10 mA source current
Notes
9571A–AT42–02/10