Liquid Tolerant Capacitive Touch Keypad Reference Design
TIDM-1021
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical Documents

Support & Training

Order Now


See the Important Notice and Disclaimer covering reference designs and other TI resources.

Key Document

Description

The Liquid Tolerant Capacitive Touch Keypad Design (TIDM-1021) is a reference design for implementing liquid tolerant capacitive touch human-machine interfaces (HMIs).  It integrates TI's MSP430FR2633 microcontroller (MCU) featuring high performance CapTIvate™ touch technology with an optimized sensor layout design and software.  This reference design demonstrates how to design capacitive touch hardware and software that can work reliably under liquid influence and pass challenging tests for conductive noise immunity.

Features
  • MSP430™ CapTIvate  MCU for Liquid-Tolerant Capacitive-Touch Sensing
  • Advanced Human Machine Interface Design with 12-Button Keypad
  • 12 LEDs Driven by MSP430  CapTIvate MCU for Backlighting
  • Passes IEC 61000-4-6 Conducted Noise Immunity Test at 3 Vrms Stress Level
  • No False Touch Detection and Accurately Detect Touched Button under IPX5 Rating Test with AC Power

See the Important Notice and Disclaimer covering reference designs and other TI resources.


  



Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Design Guide

Get results faster with test and simulation data that's been verified.

Download Design Guide

Design Files

Download ready-to-use system files to speed your design process. Get Viewer.

Download Design Files


TI Devices (2)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
MSP430FR2533  16 MHz Ultra-Low-Power Microcontroller with 16 KB FRAM, CapTIvate touch technology  Microcontrollers (MCU)  Sample & Buy View 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

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
MSP430FR2533 Download -
Download Download
MSP430FR2633 Download -
Download -
Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

Datasheet (1)
Title Type Size (KB) Date
PDF 4080 19 Aug 2019
User guides (2)
Title Type Size (KB) Date
17 Jan 2018
PDF 2273 31 Jul 2018
Design files (6)
Title Type Size (KB) Date
ZIP 452 31 Jul 2018
ZIP 433 31 Jul 2018
PDF 829 31 Jul 2018
PDF 104 31 Jul 2018
PDF 227 31 Jul 2018
PDF 130 31 Jul 2018
Related Tools & Software

Reference Designs  ( 1 )

Name Part Number Tool Type
Noise Tolerant Capacitive Touch HMI Reference Design  TIDM-CAPTOUCHEMCREF  TI Designs

Software (2)

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


Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles