AT42QT1070-MMH Atmel, AT42QT1070-MMH Datasheet - Page 19

• 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

Table 5-1.
5.2
5.3
9596A–AT42–10/10
Address
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
Address 0: Chip ID
Address 1: Firmware Version
AVE/AKS key 4
AVE/AKS key 5
AVE/AKS key 6
DI key 0
DI key 1
DI key 2
DI key 3
DI key 4
DI key 5
DI key 6
FO/MO/Guard No
LP
Max On Duration
Calibrate
RESET
Internal Register Address Allocation (Continued)
Use
Table 5-2.
Table 5-3.
MAJOR ID: Reads back as 2
MINOR ID: Reads back as E
FIRMWARE VERSION: this shows the 8-bit firmware version 1.5 (0x15).
Address
Address
0
1
Bit 7
Chip ID
Firmware Version
b7
b7
Bit 6
b6
b6
Bit 5
Adjacent key suppression level for key 4
Adjacent key suppression level for key 5
Adjacent key suppression level for key 6
MAJOR ID
Detection integrator counter for key 0
Detection integrator counter for key 1
Detection integrator counter for key 2
Detection integrator counter for key 3
Detection integrator counter for key 4
Detection integrator counter for key 5
Detection integrator counter for key 6
FastOutDI/ Max Cal/Guard Channel
Maximum On Duration
Low Power (LP) Mode
b5
b5
Bit 4
Calibrate
RESET
FIRMWARE VERSION
b4
b4
Bit 3
b3
b3
Bit 2
b2
b2
Bit 1
MINOR ID
AT42QT1070
b1
b1
Bit 0
b0
b0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
19