AT42QT1070-SSU Atmel, AT42QT1070-SSU Datasheet - Page 19

IC TOUCH SENSOR 7KEY 14-SOIC

AT42QT1070-SSU

Manufacturer Part Number
AT42QT1070-SSU
Description
IC TOUCH SENSOR 7KEY 14-SOIC
Manufacturer
Atmel
Type
Capacitiver
Datasheets

Specifications of AT42QT1070-SSU

Number Of Inputs/keys
7 Key (Comms), 5 Key (Standalone)
Data Interface
I²C
Voltage Reference
Internal
Voltage - Supply
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
14-SOIC (0.154", 3.90mm Width)
Supply Voltage
1.8 V to 5.5 V
Dimensions
3 mm L x 3 mm W x 0.8 mm H
Temperature Range
- 40 C to + 85 C
Termination Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Supply
-
Resolution (bits)
-
Touch Panel Interface
-
Data Rate/sampling Rate (sps, Bps)
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT42QT1070-SSU
Manufacturer:
ATMEL
Quantity:
2 000
Part Number:
AT42QT1070-SSU QS529
Manufacturer:
Atmel
Quantity:
4 905
General Advice
Figure 2-5.
Effect of ESD Creepage On a Flex Tail
ESD Strike Here
Gap Beside
Panel
Panel
Zap!
Flex Tail
Sensor
(1)
Under extreme circumstances
, where extra ESD protection must be added, consider placing very low
capacitance (1 pF or less) varistors or transient suppressor devices near to the control chip.
If the creepage path is "broken" before the ESD meets the sensor, then this will block the creepage; for
example, if there is adhesive on the surface around and overlapping the electrode. Generally, creepage
occurs only on insulating uniform non-dissapative surfaces. This is a complex field of study that should
be considered but probably not over-analyzed; simple precautions usually suffice.
1. These include direct contact sensors or situations where such gaps are unavoidable.
Touch Sensors Design Guide
2-9
10620D–AT42–04/09

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