AT42QT1012-MAH Atmel, AT42QT1012-MAH Datasheet - Page 3

• Manufacturer Part Number: AT42QT1012-MAH
• Description: IC SENSR TOUCH/PROX 1CH SOT23-8
• Manufacturer: Atmel
• Series: QTouch™r
• Type: Capacitiver

Specifications of AT42QT1012-MAH

• 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: 8-UFDFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Current - Supply: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

1. I/O briefly on power-up
1.2
Table 1-1.
1.3
1.3.1
9543D–AT42–08/10
6-Pin
1
2
3
4
5
6
–
–
Pin Descriptions
Schematics
6-pin SOT23-6
8-Pin
5
4
1
8
7
6
2
3
Pin Listing
Name
SNSK
TIME
OUT
SNS
Vdd
N/C
N/C
Vss
Figure 1-1.
ELECTRODE
Type
SENSE
O
I/O
I/O
P
P
–
–
I
(1)
I
O
Output state. To switched circuit and output polarity selection
resistor (Rop)
Ground
Sense pin. To Cs capacitor and to sense electrode
Sense pin. To Cs capacitor and multiplier configuration resistor
(Rm). Rm must be fitted and connected to either VSS or VDD.
See
Power
Timeout configuration pin. Must be connected to either VSS,
VDD, OUT or an RC network. See
details.
Not connected
Not connected
Basic Circuit Configuration
(active high output, toggle on/off, no auto switch off)
RS
Section 3.11.4 on page 13
Input only
Output only, push-pull
Cby
CS
Rm
3
4
Description
SNS
SNSK
for details.
Section 3.11 on page 11
VDD
VDD
VSS
5
2
I/O
P
TIME
OUT
Input and output
Ground or power
6
1
Note: bypass capacitor to be tightly
wired between VDD and VSS and
kept close to pin 5.
for
Rop
AT42QT1012
Cs
Cs + key
If Unused, Connect
Do not connect
Do not connect
To...
3