MPR084EJ Freescale Semiconductor, MPR084EJ Datasheet - Page 9

• Manufacturer Part Number: MPR084EJ
• Description: IC CTLR TOUCH SENSR PROX 16TSSOP
• Manufacturer: Freescale Semiconductor
• Type: Capacitiver

Specifications of MPR084EJ

• 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-TSSOP
• Output Type: Voltage
• Interface: I²C
• Input Type: Logic
• Supply Voltage: 3.3 V
• Dimensions: 5 mm L x 4.4 mm W x 1.05 mm H
• For Use With: KITMPR084EVM - KIT EVAL 8-PAD TOUCH MPR084
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Sensors
Freescale Semiconductor
2.4
The MPR084 is a peripheral that is controlled and monitored though a small array of internal registers which are accessed
through the I
functionality of each specific register is detailed in the following sections.
FIFO Register
Fault Register
Touch Pad Status Register
Touch Pad Configuration Register
Sensitivity Threshold Registers 1
Sensitivity Threshold Registers 2
Sensitivity Threshold Registers 3
Sensitivity Threshold Registers 4
Sensitivity Threshold Registers 5
Sensitivity Threshold Registers 6
Sensitivity Threshold Registers 7
Sensitivity Threshold Registers 8
Electrode Channel Enable Mask Register
Maximum Number of Touched Positions Register
Master Tick Period Register
Touch Acquisition Sample Period Register
Sounder Configuration Register
Low Power Configuration Register
Stuck Key Timeout Register
Configuration Register
Sensor Information Register
Register Address Map
2
C bus. When communicating with the MPR084 each of the registers in
Register
Register Address
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x00
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x10
0x11
0x12
0x13
0x14
Table 4
Auto-Increment Address
are used for specific tasks. The
Burst Mode
0x0C
0x0D
0x0A
0x0B
0x0E
0x0F
0x00
0x02
0x00
0x04
0x05
0x06
0x07
0x08
0x09
0x10
0x11
0x12
0x13
0x00
0x14
MPR084
9