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MSP430FR25x2 Ultra-Low-Power Microcontrollers

By Texas Instruments 45

MSP430FR25x2 Ultra-Low-Power Microcontrollers

Texas Instruments' MSP430FR25x2 is a family of ultra-low-power MSP430™ MCUs for capacitive touch sensing. They feature CapTIvate™ touch technology for cost-sensitive applications featuring 1 to 16 capacitive buttons or proximity sensing. The MSP430FR25x2 MCUs offer value and performance for industrial applications exposed to electromagnetic disturbances, oil, water, and grease. The devices offer IEC-certified solutions with 5x lower power consumption than competition and support proximity sensing as well as touch through glass, plastic, and metal overlays.

TI capacitive touch sensing MSP430 MCUs are supported by an extensive hardware and software ecosystem with reference designs and code examples to get designs started quickly. The BOOSTXL-CAPKEYPAD BoosterPack™ plug-in module can be used with the CAPTIVATE-PGMR programmer board (standalone or as part of the MSP-CAPT-FR2633 CapTIvate development kit) or with the LaunchPad development kit ecosystem. TI also provides free software including the CapTIvate design center, where engineers can quickly develop applications with an easy-to-use GUI and MSP430Ware™ software, and comprehensive documentation with the CapTIvate technology guide.

MSP430 MCUs with CapTIvate technology provide the most integrated and autonomous capacitive-touch solutions in the market with high reliability and noise immunity at the lowest power.

Features of the CapTIvate Capacitance Touch Technology
  • Reliability
    • Increased immunity to power line, RF, and other environmental noise
    • Built-in spread spectrum, automatic tuning, noise filtering, and debouncing algorithms
    • Enables reliable touch solutions with 10 VRMS common-mode noise, 4 kV electrical fast transients, and 15 kV electrostatic discharge, allowing for IEC‑61000-4-6, IEC-61000-4-4, and IEC‑61000-4-2 compliance
    • Reduced RF emissions to simplify electrical designs
    • Support for metal touch and water rejection designs
  • Low power
    • <4 µA wake-on-touch with two sensors
    • Wake-on-touch state machine allows electrode scanning while CPU is asleep
    • Hardware acceleration for environmental compensation, filtering, and threshold detection
  • Performance
    • Fast electrode scanning with two simultaneous scans
    • 15 cm proximity sensing 
  • Ease of use
    • CapTIvate design center, PC GUI lets engineers design and tune capacitive buttons in real time without having to write code
    • CapTIvate software library in ROM provides ample FRAM for customer
  • Flexibility
    • Up to eight self-capacitance and 16 mutual-capacitance electrodes
    • Mix and match self- and mutual-capacitive electrodes in the same design
    • Supports multi-touch functionality
    • Wide range of capacitance detection, wide electrode range of 0 pF to 300 pF
Applications
  • Electronic smart locks, door keypads, and
    readers
  • Garage door systems
  • Intrusion HMI keypads and control panels
  • Elevator call buttons
  • Personal electronics
  • Wireless speakers and headsets
  • A/V receivers
  • Appliances
  • Power tools
  • Light switches
  • Video doorbells

New Products:

MSP430FR2512IPW16MSP430FR2522IPW16MSP430FR2512IRHLTMSP430FR2522IRHLTMSP-TS430RHL20MSP-CAPT-FR2633

Tags:

SensingSemiconductors & Dev ToolsTexas Instruments

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