MPR084QR2 Freescale Semiconductor, MPR084QR2 Datasheet - Page 26
![IC CTLR TOUCH SENSOR PROX 16-QFN](/photos/38/65/386548/qfn-16_sml.jpg)
MPR084QR2
Manufacturer Part Number
MPR084QR2
Description
IC CTLR TOUCH SENSOR PROX 16-QFN
Manufacturer
Freescale Semiconductor
Type
Capacitiver
Datasheet
1.MPR084EJ.pdf
(40 pages)
Specifications of MPR084QR2
Number Of Inputs/keys
8 Key
Data Interface
I²C, Serial
Voltage - Supply
1.8 V ~ 3.6 V
Current - Supply
1.62mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
16-QFN Exposed Pad
Output Type
Voltage
Interface
I²C
Input Type
Logic
Supply Voltage
3.3 V
Dimensions
5 mm L x 5 mm W x 1 mm H
For Use With
KITMPR084EVM - KIT EVAL 8-PAD TOUCH MPR084
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
10
10.1
The Key Click Sound Generator allows the MPR084 to generate audible feedback, independent of the I
The sounder is used to drive a piezo buzzer. This output is configured by using the Sounder Register, shown in the following
section.
10.1.1 Sounder Configuration Register
The I
10.2
The Sensor Information register is a read only register that displays a descriptor which contains static information about the
MPR084 version.
10.2.1 Sensor Information Register
The I
MPR084
26
2
2
C slave address of the Sounder Configuration Register is 0x07 - 0x10
C slave address of the Sensor Information Register is 0x14.
Table 18. Sounder Configuration Register Field Descriptions
Table 19. Sensor Information Register Field Descriptions
Additional Features
Key Click Sound Generator
Sensor Information
SensorInfo
Reset:
Reset:
Field
FREQ
Field
SEN
7-0
CP
W
W
2
1
0
R
R
7
0
0
7
0
SensorInfo – The Sensor Information register describes the version information for
the part. Burst reads will display ASCII data in the following format:
VENDOR_LABEL",PN:"PRODUCT_LABEL",QUAL:"BUILD_TYPE_LABEL",VER:"
BUILD_VERSION_MAJOR"_"BUILD_VERSION_MINOR"_"BUILD_NUMBER"\0"
= Unimplemented
= Unimplemented
Click Period – The Click Period bit controls the length of the sounder click.
0 Sounder Click Period is 10ms
1 Sounder Click Period is 20ms
Frequency – The Frequency bit controls the frequency of the driven output.
0 Sounder frequency is 1kHz
1 Sounder frequency is 2kHz
Sounder Enable – The Sounder Enable bit enables or disables the sounder output.
0 Disable
1 Enable
6
0
0
6
1
Figure 29. Sounder Configuration Register
Figure 30. Sensor Information Register
5
0
0
5
0
4
0
0
4
0
SensorInfo
Description
Description
3
0
0
3
0
CP
2
0
2
1
FREQ
1
0
1
1
Freescale Semiconductor
2
C communication status.
SEN
0
1
0
0
Sensors