AT42QT2161-MMU Atmel, AT42QT2161-MMU Datasheet - Page 21

• 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

9614A–AT42–08/10
Figure 4-6
between the SLA+R/W and the STOP.
Figure 4-5.
Figure 4-6.
SDA
SCL
SDA from
Transmitter
SDA from
Receiver
SCL from
Master
Aggregate
SDA
START
SLA+R/W
shows a typical data transmission. Note that several data bytes can be transmitted
Addr MSB
Data Packet Format
Packet Transmission
1
2
SLA+R/W
Data MSB
Addr LSB
1
7
R/W
8
2
ACK
9
Data Byte
7
Data MSB
1
Data LSB
2
8
Data Byte
ACK
9
7
AT42QT2161
Data LSB
8
ACK
STOP or
Next Data Byte
9
STOP
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