MPR121QR2 Capacitive Touch Sensor Controller I2C QFN-20
Prices updated: 12 Oct 2026
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| Store | product | Price | View in store |
|---|---|---|---|
 UGE | MPR121QR2 Proximity Capacitive Touch Sensor I2C Controller QFN20 | 61.56 EGP | View in store |
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Lowest price recorded: 61.56 EGP
About this product
The MPR121QR2 is a 12-channel capacitive touch sensor controller with an I2C interface, supplied in a QFN-20 package. It detects touch and near-proximity on electrodes, with autoconfiguration, debounce filtering and a hardware-selectable I2C address. It is used for touch buttons, sliders and touch panels in maker and consumer projects.
Specifications
- Touch electrode inputs
- 12
- Interface
- I2C
- Supply voltage
- 1.71 V to 3.6 V
- Typical run current
- 29 µA
- Package
- QFN-20
- I2C address
- Hardware configurable
Frequently asked questions
What is the price of MPR121QR2 Capacitive Touch Sensor Controller I2C QFN-20 in Egypt?
MPR121QR2 Capacitive Touch Sensor Controller I2C QFN-20 currently costs 61.56 EGP in Egypt.
Where can I buy MPR121QR2 Capacitive Touch Sensor Controller I2C QFN-20 in Egypt?
MPR121QR2 Capacitive Touch Sensor Controller I2C QFN-20 is available from UGE. Compare the offers above to find the best price.
Can I power the MPR121QR2 from a 5 V Arduino board?
Its supply range is 1.71 V to 3.6 V, so power it from a 3.3 V rail. When connecting to 5 V boards such as the Arduino Uno, use a logic level shifter on the SDA and SCL lines.
How is the I2C address selected?
The ADD pin sets the I2C address in hardware. Connecting ADD to VSS, VDD, SCL or SDA selects one of four addresses, which allows more than one controller on the same bus.
