AT42QT1012-TSHR Atmel, AT42QT1012-TSHR Datasheet - Page 13
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AT42QT1012-TSHR
Manufacturer Part Number
AT42QT1012-TSHR
Description
IC TOUCH SENSOR 1KEY SOT23-6
Manufacturer
Atmel
Series
QTouch™r
Type
Capacitiver
Datasheets
1.AT42QT1012-TSHR.pdf
(4 pages)
2.AT42QT1012-TSHR.pdf
(28 pages)
3.AT42QT1012-TSHR.pdf
(6 pages)
Specifications of AT42QT1012-TSHR
Touch Panel Interface
1, 2-Wire
Number Of Inputs/keys
1 Key
Resolution (bits)
9, 14 b
Data Interface
Serial
Voltage Reference
Internal
Voltage - Supply
1.8 V ~ 5.5 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
SOT-23-6
Output Type
Logic
Interface
Digital
Input Type
Logic
Supply Voltage
1.8 V to 5.5 V
Dimensions
2.9 mm L x 1.6 mm W x 1.45 mm H
Output Voltage
0.6 V to 0.7 V
Temperature Range
- 40 C to + 85 C
Termination Style
SMD/SMT
Supply Current
31.5µA
Supply Voltage Range
1.8V To 5.5V
Sensor Case Style
SOT-23
No. Of Pins
6
Operating Temperature Range
-40°C To +85°C
Svhc
No SVHC (15-Dec-2010)
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Supply
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
AT42QT1012-TSHRTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT42QT1012-TSHR
Manufacturer:
MARVELL
Quantity:
224
3.11.4
9543D–AT42–08/10
Configuring the User-programmed Auto-off Delay
Figure 3-7.
The QT1012 can be configured to give auto-off delays ranging from minutes to hours by means
of a simple RC network and the delay multiplier input.
With the delay multiplier set at x1 the auto-off delay is calculated as follows:
Delay value = integer value of
And Rt x Ct =
Note:
To ensure correct operation it is recommended that the value of
Values outside this range may be interpreted as the hard wired options TIME linked to OUT and
TIME linked to “off” respectively, causing the QT1012 to use the relevant predefined auto-off
delays.
Table 3-5.
K values (19 and 22) are obtained from
Note:
Output Type
Active high
Active low
Rt is in k, Ct is in nF, Delay is in seconds. K values are obtained from
page
Rt is in k, Ct is in nF.
14.
Programmable Delay
Programmable Auto-off Delay (Example)
Vm = Vss (delay multiplier = 1), Vdd = 3.5V
Delay K
-------------------------- -
Auto Off Delay (Seconds)
(Rt x Ct x 15) / 19
(Rt x Ct x 15) / 22
15
ELECTRODE
SENSE
Vm
RS
CS
Rm
Rt Ct
------------------ -
4
3
SNS
SNSK
K
x 15 seconds
VDD
VDD
VSS
Figure 3-8 on page
5
2
TIME
OUT
1
6
Ct
Rt
14.
Rop
Rt Ct
------------------ -
K
AT42QT1012
is between 4 and 240.
Figure 3-8 on
13