64-Button Capacitive Touch Panel With TI Microcontroller With CapTIvate Technology Reference Design


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Key Document


TIDM-CAPTIVATE-64-BUTTON is a TI Designs Reference Design for an ultra-low-power touch panel with 64-buttons that can be controlled by a single MSP microcontroller (MCU) with CapTIvate™ technology. The design uses mutual capacitance technology to enable all 64-buttons to be tightly packed and controlled with only 16 MCU pins. The touch panel is designed to easily interface with the CAPTIVATE-FR2633 MCU target module included in the MSP-CAPT-FR2633 MCU Development Kit.

  • Single touch and multitouch detection
  • Mutual capacitance technology enables 64-buttons with only 16 microcontroller pins
  • More than 100 samples-per-second and 15-ms typical response time with code size/response time optimization
  • 1.75-µA-per-button average current with low-power optimization and 0.23-µA-per-button average current with wake-on-touch mode
  • Easy plug-and-play pith CAPTIVATE-FR2633 target MCU module 
  • CapTIvate Design Center supports real-time sensor tuning with a host PC

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Bill of Materials (BOM)

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TI Devices (1)

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Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
MSP430FR2633  MSP430 MCU with CapTIvate technology - the lowest power, most noise-immune capacitive touch  MSP430 ultra-low-power MCUs  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
MSP430FR2633 Download -
Download -
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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (2)
Title Abstract Type Size (KB) Date Views TI Recommends
11 Nov 2015
PDF 3972 30 Oct 2015 86
White papers (2)
Title Abstract Type Size (KB) Date Views
PDF 869 15 Feb 2018 268
PDF 1156 14 Oct 2015 612
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 214 17 Dec 2015 22
ZIP 385 17 Dec 2015 17
PDF 2774 17 Dec 2015 25
PDF 710 17 Dec 2015 16
PDF 194 17 Dec 2015 16
PDF 208 17 Dec 2015 56
Related Tools & Software

Reference Designs  ( 1 )

Name Part Number Tool Type
Capacitive Touch Thermostat UI with MSP MCUs Featuring CapTIvate Technology Reference Design  TIDM-CAPTIVATE-THERMOSTAT-UI  Reference Designs 

Software (1)

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