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Home > NEWEST Products > New by Manufacturer > Texas Instruments > MSP430FR267x CapTIvate Mixed Signal MCUs - TI
NEWEST Products

Texas Instruments MSP430FR267x CapTIvate Mixed Signal MCUs

Texas Instruments MSP430FR267x CapTIvate Mixed Signal Microcontrollers (MCUs) are an ultra-low-power MSP430™ microcontroller for capacitive touch sensing for buttons, slides, wheel and proximity applications. MSP430 MCUs with CapTIvate technology provide the most integrated and autonomous capacitive-touch solution in the market with high reliability and noise immunity at the lowest power. TI’s capacitive touch technology supports concurrent self-capacitance and mutual-capacitance electrodes on the same design for maximum flexibility. MSP430 MCUs with CapTIvate technology operate through thick glass, plastic enclosures, metal, and wood with operation in harsh environments including wet, greasy, and dirty environments.

The TI MSP430 family of low-power microcontrollers consists of devices with different sets of peripherals targeted for various applications. The architecture, combined with extensive low-power modes, is optimized to achieve extended battery life in portable measurement applications. The MCU features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows the MCU to wake up from low-power modes to active mode in less than 10µs (typical).

Features

  • CapTIvate™ technology – capacitive touch
    • Performance
      • Fast electrode scanning with four simultaneous scans
      • Proximity sensing
    • Reliability
      • Increased immunity to a power line, RF, and other environmental noise
      • Built-in spread spectrum, automatic tuning, noise filtering, and debouncing algorithms
      • Enable reliable touch solutions with 10V RMS common-mode noise, 4kV electrical fast transients, and 15kV 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
    • Flexibility
      • Up to 16 self-capacitance and 64 mutual-capacitance electrodes
      • Mix and match self- and mutual-capacitive electrodes in the same design
      • Support multi-touch functionality
      • Wide range of capacitance detection, wide electrode range of 0 to 300pF
    • Low power
      • < 5 µA wake-on-touch with four sensors
      • Wake-on-touch state machine allows electrode scanning while CPU sleeps
      • Hardware acceleration for environmental compensation, filtering, and threshold detection
  • Embedded microcontroller
    • 16-bit RISC architecture
    • Clock supports frequencies up to 16MHz
    • Wide supply voltage range from 3.6V down to 1.8V (minimum supply voltage is restricted by SVS levels)
  • Optimized ultra-low-power modes
    • Active mode: 135µA/MHz (Typical)
    • Standby: < 5µA wake-on-touch with four sensors
    • Shutdown (LPM4.5): 37nA without SVS
  • Low-power ferroelectric RAM (FRAM)
    • Up to 64KB of nonvolatile memory
    • Built-in error correction code (ECC)
    • Configurable write protection
    • Unified memory of program, constants, and storage
    • 1015 write cycle endurance
    • Radiation resistant and non-magnetic
  • Intelligent digital peripherals
    • Four 16-bit timers with three capture/compare registers each (Timer_A3)
    • One 16-bit timer with seven capture/compare registers each (Timer_B7)
    • One 16-bit timer associated with CapTIvate technology
    • One 16-bit counter-only RTC
    • 16-bit cyclic redundancy check (CRC)
  • Enhanced serial communications with support for pin remap feature
  • High-performance analog
    • One 12-bit analog-to-digital converter (ADC) with up to 12 channels
    • One enhanced comparator (eCOMP)
  • Clock system (CS)
    • On-chip 32kHz RC oscillator (REFO) with 1µA support
    • On-chip 16MHz digitally controlled oscillator (DCO) with frequency-locked loop (FLL)
    • On-chip very low-frequency 10kHz oscillator (VLO)
    • On-chip high-frequency modulation oscillator (MODOSC)
    • External 32kHz crystal oscillator (LFXT)
    • Programmable MCLK prescalar of 1 to 128
    • SMCLK derived from MCLK with programmable prescalar of 1, 2, 4, or 8
  • General input/output and pin functionality
    • 43 I/Os on LQFP-48 package
    • 43 interrupt pins on all GPIOs can wake MCU from low-power modes
  • Family members
    • MSP430FR2676: 64KB of program FRAM, 512B of information FRAM, 8KB of RAM supports up to 16 self-capacitive and 64 mutual-capacitive sensors
    • MSP430FR2675: 32KB of program FRAM, 512B of information FRAM, 6KB of RAM supports up to 16 self-capacitive and 64 mutual-capacitive sensors
  • Package options
    • 48-pin: LQFP (PT)
    • 40-pin: VQFN (RHA)
    • 32-pin: VQFN (RHB)

Applications

  • Major appliances
  • Intrusion HMI keypads and control panels
  • Electronic smart locks, door keypads, and readers
  • Garage door systems
  • Motorized window blinds
  • Remote controls
  • Personal electronics
  • Wireless speakers and headsets
  • Handheld video game controllers
  • A/V receivers
  • White goods
  • Garden and power tools

Functional Block Diagram

Block Diagram - Texas Instruments MSP430FR267x CapTIvate Mixed Signal MCUs
Texas Instruments MSP430FR267x CapTIvate Mixed Signal MCUs Enlarge