MPR031EPR2 Freescale Semiconductor, MPR031EPR2 Datasheet - Page 7

• Manufacturer Part Number: MPR031EPR2
• Description: IC CTLR TOUCH SENSOR 8-DFN
• Manufacturer: Freescale Semiconductor
• Type: Capacitiver

Specifications of MPR031EPR2

• Touch Panel Interface: 2-Wire
• Data Interface: I²C, Serial
• Data Rate/sampling Rate (sps, Bps): 400k
• Voltage - Supply: 1.71 V ~ 2.75 V
• Current - Supply: 43µA
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-UDFN
• Output Type: Logic
• Interface: I²C
• Input Type: Logic
• Supply Voltage: 1.8 V
• Output Voltage: 0.5 V
• Supply Current: 8µA
• Ic Interface Type: I2C
• Supply Voltage Range: 1.71V To 2.75V
• Sensor Case Style: µDFN
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +85°C
• Interface Type: I2C
• Rohs Compliant: Yes
• For Use With: KITMPR03XEVM - KIT EVAL FOR MPR03XDEMOMPR031 - BOARD DEMO FOR MPR031 CTLR
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MPR031EPR2TR

Sensors
Freescale Semiconductor
2.3.8
The application should use repeated starts to address the MPR03X to avoid bus confusion between I
once a master issues a start/repeated start condition, that master owns the bus until a stop condition occurs. If a master that does
not own the bus attempts to take control of that bus, then improper addressing may occur. An address may always be rewritten
to fix this problem. Follow I
2.4
Table 3. Register Address Map
Touch Status Register
ELE0 Filtered Data Low Register
ELE0 Filtered Data High Register
ELE1 Filtered Data Low Register
ELE1 Filtered Data High Register
ELE2 Filtered Data Low Register
ELE2 Filtered Data High Register
ELE0 Baseline Value Register
ELE1 Baseline Value Register
ELE2 Baseline Value Register
Max Half Delta Register
Noise Half Delta Register
Noise Count Limit Register
ELE0 Touch Threshold Register
ELE0 Release Threshold Register
ELE1 Touch Threshold Register
ELE1 Release Threshold Register
ELE2 Touch Threshold Register
ELE2 Release Threshold Register
AFE Configuration Register
Filter Configuration Register
Electrode Configuration Register
Operation with Multiple Master
Register Address Map
2
C protocol for multiple master configurations.
Register
Register Address
0x1A
0x1B
0x1C
0x2A
0x2B
0x2C
0x2D
0x2E
0x00
0x02
0x03
0x04
0x05
0x06
0x07
0x26
0x27
0x28
0x29
0x41
0x43
0x44
Register Address + 1
Auto-Increment
2
C masters.On a I
Burst Mode
Address
0x00
MPR03X
2
C bus,
7