# MPR121QR2 (Component)
## Description
Capacitive Touch Buttons, Slider, Wheel 20-UFQFN (3x3) #commonpartslibrary #sensor #Touchsensor #integratedcircuit
## Component Details
- **Owner:** vasy_skral
- **Created:** 3/7/2022
- **Last Updated:** 1/13/2023
- **Visibility:** Public
- **Manufacturer Part Number:** MPR121QR2
- **Part Type:** Integrated Circuit
- **Datasheet URL:** https://resurgentsemi.com/wp-content/uploads/2018/09/MPR121_rev5-Resurgent.pdf?d453f8&d453f8
- **Manufacturer Name:** NXP USA Inc.
- **Used in:** 39 projects
## Distributor Pricing (qty 1)
*Pricing shown for quantity 1. For price breaks and other quantities, open in Flux.*
| Distributor | Unit Price (qty 1) | Stock |
|------------|--------------------|-------|
| [Arrow](https://www.arrow.com/en/products/mpr121qr2/resurgent-semiconductor-llc?utm_currency=USD®ion=asia) | $1.57 | 205K |
| [Digi-Key](https://www.digikey.com/en/products/detail/nxp-usa-inc/MPR121QR2/2186527) | N/A | N/A |
| [LCSC](https://www.lcsc.com/product-detail/C91322.html) | $3.0746 | 4K |
| [Mouser](https://www.mouser.com/ProductDetail/NXP-Semiconductors/MPR121QR2?qs=ElE%2F8fqQeYj7Nz12nD9gyA%3D%3D) | N/A | N/A |
| [Verical](https://www.verical.com/pd/resurgent-semiconductor-touch-screen-controller-MPR121QR2-1997658?utm_currency=USD) | N/A | N/A |
- **Part Type:** Integrated Circuits
- **Sub-Type:** Logic
- **Manufacturer:** NXP
- **MPN:** MPR121QR2
- **Pin Count:** 20
- **Logic Function:** AND
## Pins
| Pin | Name | Type |
|-----|------|------|
| 1 | ~IRQ | |
| 2 | SCL | |
| 3 | SDA | |
| 4 | ADDR | |
| 5 | VREG | |
| 6 | VSS | |
| 7 | REXT | |
| 8 | ELE0 | |
| 9 | ELE1 | |
| 10 | ELE2 | |
| 11 | ELE3 | |
| 12 | LED0/ELE4 | |
| 13 | LED1/ELE5 | |
| 14 | LED2/ELE6 | |
| 15 | LED3/ELE7 | |
| 16 | LED4/ELE8 | |
| 17 | LED5/ELE9 | |
| 18 | LED6/ELE10 | |
| 19 | LED7/ELE11 | |
| 20 | VDD | |
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*Generated from [https://www.flux.ai/vasy_skral/mpr121qr2](https://www.flux.ai/vasy_skral/mpr121qr2)*