MPR031EPR2 Freescale Semiconductor, MPR031EPR2 Datasheet - Page 15

• 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
6
6.1
The MPR03X has one interrupt output that is triggered on any touch related event. The interrupts trigger on both the up or down
motion of a finger as defined by a set of configurable thresholds.
6.2
An interrupt is asserted any time data changes in the Touch Status Register
or release occurs, an interrupt will alert the application of the change.
6.3
The MPR03X has one interrupt output that is asserted on any touch related event. The interrupts trigger on both the up or down
motion of a finger as defined by a set of configurable thresholds as described in
must read the Touch Status Register
takes place the MPR03X will release the interrupt.
6.4
The IRQ pin is an open-drain latching interrupt output which requires an external pull-up resistor. The pin will latch down based
on the conditions in
Interrupts
Introduction
Triggering an Interrupt
Interrupt Handling
IRQ Pin
Section
6.2. The pin will de-assert when an I
(Section
5.2) and determine the current condition of the system. As soon as an I
2
C transaction reads from the MPR03X.
(Section
Section
5.2). This means that if an electrode touch
9. To service an interrupt, the application
2
MPR03X
C read
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