MPR121QR2 Freescale Semiconductor, MPR121QR2 Datasheet - Page 5

• Manufacturer Part Number: MPR121QR2
• Description: IC CTLR TOUCH SENSOR 20-QFN
• Manufacturer: Freescale Semiconductor
• Type: Capacitive, Proximity Sensorr

Specifications of MPR121QR2

• Number Of Inputs/keys: 12 Key
• Data Interface: I²C, Serial
• Voltage - Supply: 1.71 V ~ 3.6 V
• Current - Supply: 29µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-UQFN, 20-µQFN
• Output Type: Logic
• Interface: I²C
• Input Type: Logic
• Supply Voltage: 2.5 V to 3.6 V
• Dimensions: 3 mm L x 3 mm W x 0.65 mm H
• Temperature Range: - 40 C to + 85 C
• Termination Style: SMD/SMT
• Supply Current: 29µA
• Ic Interface Type: I2C
• Supply Voltage Range: 1.71V To 3.6V
• Sensor Case Style: QFN
• No. Of Pins: 20
• Operating Temperature Range: -40°C To +85°C
• Interface Type: I2C
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MPR121QR2; MPR121QR2TR

Sensors
Freescale Semiconductor
Table 1. Register Map
ELE0 - ELE7 Touch Status
ELE8 - ELE11, ELEPROX Touch Status
ELE0-7 OOR Status
ELE8-11, ELEPROX OOR Status
ELE0 Electrode Filtered Data LSB
ELE0 Electrode Filtered Data MSB
ELE1 Electrode Filtered Data LSB
ELE1 Electrode Filtered Data MSB
ELE2 Electrode Filtered Data LSB
ELE2 Electrode Filtered Data MSB
ELE3 Electrode Filtered Data LSB
ELE3 Electrode Filtered Data MSB
ELE4 Electrode Filtered Data LSB
ELE4 Electrode Filtered Data MSB
ELE5 Electrode Filtered Data LSB
ELE5 Electrode Filtered Data MSB
ELE6 Electrode Filtered Data LSB
ELE6 Electrode Filtered Data MSB
ELE7 Electrode Filtered Data LSB
ELE7 Electrode Filtered Data MSB
ELE8 Electrode Filtered Data LSB
ELE8 Electrode Filtered Data MSB
ELE9 Electrode Filtered Data LSB
ELE9 Electrode Filtered Data MSB
ELE10 Electrode Filtered Data LSB
ELE10 Electrode Filtered Data MSB
ELE11 Electrode Filtered Data LSB
ELE11 Electrode Filtered Data MSB
ELEPROX Electrode Filtered Data LSB
ELEPROX Electrode Filtered Data MSB
ELE0 Baseline Value
ELE1 Baseline Value
ELE2 Baseline Value
ELE3 Baseline Value
ELE4 Baseline Value
ELE5 Baseline Value
ELE6 Baseline Value
ELE7 Baseline Value
ELE8 Baseline Value
ELE9 Baseline Value
ELE10 Baseline Value
ELE11 Baseline Value
ELEPROX Baseline Value
MHD Rising
NHD Amount Rising
NCL Rising
FDL Rising
MHD Falling
NHD Amount Falling
REGISTER
OVCF
ARFF
ELE7
ELE7
ELE6
ELE6
ACFF
ELE5
ELE5
ELEPROX
ELEPROX
ELE4
ELE4
EFDPROXLB
EPROXBV
EFD10LB
EFD11LB
EFD0LB
EFD1LB
EFD2LB
EFD3LB
EFD4LB
EFD5LB
EFD6LB
EFD7LB
EFD8LB
EFD9LB
E10BV
E11BV
Fields
NCLR
E0BV
E1BV
E2BV
E3BV
E4BV
E5BV
E6BV
E7BV
E8BV
E9BV
FDLR
ELE11
ELE11
ELE3
ELE3
MHDR
NHDR
MHDF
NHDF
ELE10
ELE10
ELE2
ELE2
ELE1
ELE9
ELE1
ELE9
EFDPROXHB
EFD10HB
EFD11HB
EFD0HB
EFD1HB
EFD2HB
EFD3HB
EFD4HB
EFD5HB
EFD6HB
EFD7HB
EFD8HB
EFD9HB
ELE0
ELE8
ELE0
ELE8
Register
Address
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x1A
0x1B
0x1C
0x1D
0x1E
0x1F
0x2A
0x2B
0x2C
0x2D
0x2E
0x2F
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x20
0x21
0x22
0x23
0x24
0x25
0x26
0x27
0x28
0x29
0x30
Value
Initial
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
Address + 1
MPR121
Increment
Address
Register
Auto
5