AT42QT1070-MMH Atmel, AT42QT1070-MMH Datasheet - Page 7

• Manufacturer Part Number: AT42QT1070-MMH
• Description: IC TOUCH SENSOR 7KEY 20-VQFN
• Manufacturer: Atmel
• Type: Capacitiver

Specifications of AT42QT1070-MMH

• 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: 20-VFQFN Exposed Pad
• 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

Figure 1-3.
Figure 1-4.
9596A–AT42–10/10
RESET
Vdd
R1
OUTPUTS
R
Typical Circuit – Comms (20-pin VQFN)
Typical Circuit – Standalone (20-pin VQFN)
OUT0
C
C
C
OUT0
OUT4
R
OUT0
OUT4
and are optional
4
Vss
12
14
13
10
18
19
20
12
14
13
10
18
19
20
6
7
6
7
C1
MODE (Vdd)
SDA
CHANGE
RESET
N/C
N/C
N/C
N/C
N/C
N/C
OUT0
OUT4
RESET
N/C
N/C
N/C
N/C
N/C
N/C
11
Vss
Vdd
QT1070
QT1070
8
Vss
8
Vss
Vss
Vdd
9
Vss
MODE (Vss)
11
Vdd
Vdd
OUT3
9
OUT2 16
OUT1 17
KEY4
KEY3
KEY2
KEY0
KEY1
KEY6 16
KEY5 17
KEY4 1
KEY3 2
KEY2 3
KEY1 4
KEY0 5
SCL
Vss
15
1
2
3
4
5
C1
15
1) The central pad on the underside of the chip is a Vss pin
2) It is important to place all Rs components physically near
Rs
Rs
RL
Rs4
Rs3
Rs2
Rs1
Rs0
1) The central pad on the underside of the chip is a Vss pin
2) It is important to place all Rs components physically near
Rs6
Rs5
Rs4
Rs2
Rs1
Rs0
Rs3
and should be connected to ground. Do not put any other
tracks underneath the body of the chip.
to the chip.
OUT3
OUT2
OUT1
and should be connected to ground. Do not put any other
tracks underneath the body of the chip.
to the chip.
Vdd
R
SCL
OUTPUTS
AT42QT1070
C
C
C
C
OUT1 2
OUT3
OUT2
OUT1
,
and are optional
K6
K4
K2
K0
3
K4
K2
K0
Vss
K5
K3
K1
K3
K1
7