Proximity Capacitive Touch Sensor Controllers

Board-tiny (1)


The MPR03X is an Inter-Integrated Circuit Communication (I2C) driven Capacitive Touch Sensor Controller, optimized to manage two electrodes with interrupt functionality, or three electrodes with the interrupt disabled. It can accommodate a wide range of implementations due to increased sensitivity and a specialized feature set.

Additional information


6 µA supply current with two electrodes being monitored with
32 ms response time and IRQ enabled
Compact 2 x 2 x 0.65 mm 8-lead µDFN package
Supports up to 3 touch pads
Only one external component needed
Intelligent touch detection capacity
4 µA maximum shutdown current
1.71 V to 2.75 V operation
Threshold based detection with hysteresis
I2C interface, with optional IRQ
Multiple devices in a system allow for up to 6 electrodes (need MPR032 with second I2C address)
-40°C to +85°C operating temperature range


PC Peripherals
MP3 Players
Remote Controls
Mobile Phones
Lighting Controls

Ordering Information

Part Number Package Temp Range Packaging Method Lead Free I2C Address
MPR032EPR2 µDFN-8 -40°C to +85°C Mini T&R Yes 0x4B