MSP430FR2633 Microcontroller CapTIvate Electronic Lock and Keypad Reference Design TIDM-CAPTIVATE-E-LOCK (ACTIVE)

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Key Document


This reference design demonstrates an ultra-low-power capacitive touch panel solution based on a single MSP430™ microcontroller (MCU) with CapTIvate™ technology. The use of self and mutual capacitance technology enables multifunctional capacitive touch panels (buttons, and proximity sensor) for eLocks and other applications with various human interfaces available. This TI Design also demonstrates how to extend battery life by duty-cycling the MSP430 CPU and switch between low-power mode and active mode.

  • 12 touch buttons with one proximity sensor for system wake up and guard key
  • 12 LEDs to indicate touch operation
  • Haptics and beep available for touch feedback and lock status
  • Ultra-low standby power consumption
  • Anti-moisture performance

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TI Devices (3)

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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  Microcontrollers (MCU)  Sample & Buy View Design Kits & Evaluation Modules
TPS61020  Adjustable, 1.5-A Switch, 96% Efficient Boost Converter with Down-Mode, QFN-10  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules
TPS62745  3.3V-10V input, 300mA Ultra Low Iq step-down converter with VSEL and input voltage switch  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
MSP430FR2633 Download -
Download -
Download Download
TPS61020 Download Download
TPS62745 Download Download

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Technical Documents

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More literature (1)
Title Date Type
CapTIvate Technology Guide 19 Jul 2016
User guides (1)
Title Type Size (KB) Date
PDF 6231 07 Nov 2016
White papers (2)
Title Type Size (KB) Date
PDF 1379 04 Aug 2017
PDF 1156 14 Oct 2015
Design files (6)
Title Type Size (KB) Date
ZIP 206 28 Oct 2016
ZIP 549 28 Oct 2016
ZIP 256 28 Oct 2016
PDF 35 28 Oct 2016
PDF 99 28 Oct 2016
PDF 460 28 Oct 2016
Related Tools & Software

Reference Designs  ( 3 )

Design Kits & Evaluation Modules  ( 1 )

Name Part Number Tool Type
MSP CapTIvate MCU Development Kit  MSP-CAPT-FR2633  Evaluation Modules & Boards 

Software (2)

Name Part Number Software Type
CapTIvate™ Design Center GUI for MSP430™ Capacitive Sensing MCUs  MSPCAPTDSNCTR  Software Libraries 

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