AT42QT2161-MMU Atmel, AT42QT2161-MMU Datasheet - Page 44

• 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

9. Specifications
9.1
9.2
Note:
44
Vdd
Max continuous pin current, any control or drive pin
Short circuit duration to ground, any pin
Short circuit duration to Vdd, any pin
Voltage forced onto any pin
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.
Operating temp
Storage temp
Vdd
Supply ripple+noise* (<1 MHz)
Supply ripple+noise* (>1 MHz)
Cx transverse load capacitance per key
Absolute Maximum Specifications
Recommended Operating Conditions
*Applicable to QT2161 on a typical setup, with Burst Repetition (BREP) = 2.
The effects of supply ripple and noise on performance is more prominent the nearer it is to the burst center frequency.
AT42QT2161
-40
-55
+1.8V to 5.5V
±25 mV
±50 mV
2 to 20 pF
-0.5 to +6V
±10 mA
infinite
infinite
-0.6V to (Vdd + 0.6) Volts
o
o
C to +85
C to +125
o
C
o
C
9614A–AT42–08/10