AT42QT1040-MMH Atmel, AT42QT1040-MMH Datasheet - Page 13

• Manufacturer Part Number: AT42QT1040-MMH
• Description: IC TOUCH SENSOR 4KEY 20-VQFN
• Manufacturer: Atmel
• Series: QTouch™r
• Type: Resistiver

Specifications of AT42QT1040-MMH

• Touch Panel Interface: 4, 2-Wire
• Number Of Inputs/keys: 4 Key
• Data Interface: I²C, Serial
• Data Rate/sampling Rate (sps, Bps): 200k
• Voltage Reference: Internal
• Voltage - Supply: 1.8 V ~ 5.5 V
• Current - Supply: 10mA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• Output Type: Logic
• Input Type: Logic
• Supply Voltage: 1.8 V to 5.5 V
• Dimensions: 3 mm L x 3 mm W x 0.8 mm H
• Output Voltage: 0.7 V to 0.8 V
• Temperature Range: - 40 C to + 85 C
• Termination Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Interface: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: AT42QT1040-MMH; AT42QT1040-MMHTR

5. Specifications
5.1
5.2
5.3
Vdd = 5.0V, Cs = 4.7 nF, Ta = recommended range, unless otherwise noted
9524B–AT42–04/09
Vdd
Max continuous pin current, any control or drive pin
Voltage forced onto any pin
Operating temperature
Storage temperature
Vdd
Supply ripple + noise
Cx capacitance per key
Parameter
Rrst
Voh
Vih
Vol
Vil
Iil
Absolute Maximum Specifications
Recommended Operating Conditions
DC Specifications
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
Low input logic level
High input logic level
Low output voltage
High output voltage
Input leakage current
Internal RST pull-up resistor
Description
0.6 Vdd
0.8 Vdd
-0.5V
Min
20
0
–
<0.05
Vdd
Typ
–
–
–
–
-0.5 to +6.0V
±10 mA
-0.5V to (Vdd + 0.5) Volts
-40°C to +85°C
-55°C to +125°C
1.8V to 5.5V
±20 mV maximum
2 to 20 pF
Vdd + 0.5V
0.3V
Max
Vdd
0.7
50
1
Units
µA
k
V
V
V
V
Notes
10 mA sink current
10 mA source current
AT42QT1040
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