TI MSP430FR2533IRHBR

The MSP430FR263x and MSP430FR253x are ultra-low-power MSP430™ microcontrollers for capacitive touch sensing that feature CapTIvate™ touch technology for buttons, sliders, wheels, 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.

• CapTIvate™ technology – capacitive touch
  • Performance – Fast electrode scanning with four simultaneous scans – Support for high-resolution sliders with up to 1024 points – Proximity sensing
  • 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-V RMS 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
  • Flexibility – Up to 16 self-capacitance and 64 mutualcapacitance electrodes – Mix and match self- and mutual-capacitive electrodes in the same design – Supports multitouch functionality – Wide range of capacitance detection, wide electrode range of 0 to 300 pF
  • Low power – <5 μA wake-on-touch with four sensors – Wake-on-touch state machine allows electrode scanning while CPU is asleep – Hardware acceleration for environmental compensation, filtering, and threshold detection
• 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 application
• Embedded microcontroller – 16-bit RISC architecture – Clock supports frequencies up to 16 MHz – Wide supply voltage range from 3.6 V down to 1.8 V (minimum supply voltage is restricted by SVS levels, see the SVS specifications)
• Optimized ultra-low-power modes – Active mode: 126 μA/MHz (typical) – Standby: <5 μA wake-on-touch with four sensors – LPM3.5 real-time clock (RTC) counter with 32768-Hz crystal: 730 nA (typical) – Shutdown (LPM4.5): 16 nA (typical)
• High-performance analog – 8-channel 10-bit analog-to-digital converter (ADC) – Internal 1.5-V reference – Sample-and-hold 200 ksps
• Enhanced serial communications – Two enhanced universal serial communication interfaces (eUSCI_A) support UART, IrDA, and SPI – One eUSCI (eUSCI_B) supports SPI and I²C
• Intelligent digital peripherals – Four 16-bit timers – Two timers with three capture/compare registers each (Timer_A3) – Two timers with two capture/compare registers each (Timer_A2) – One 16-bit timer associated with CapTIvate technology – One 16-bit counter-only RTC – 16-bit cyclic redundancy check (CRC)
• Low-power ferroelectric RAM (FRAM) – Up to 15.5KB 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 nonmagnetic – High FRAM-to-SRAM ratio, up to 4:1
• Clock system (CS)
  • On-chip 32-kHz RC oscillator (REFO) On-chip 16-MHz digitally controlled oscillator (DCO) with frequency-locked loop (FLL) – ±1% accuracy with on-chip reference at room temperature On-chip very low-frequency 10-kHz oscillator (VLO) On-chip high-frequency modulation oscillator (MODOSC) External 32-kHz 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 – Total of 19 I/Os on TSSOP-32 package – 16 interrupt pins (P1 and P2) can wake MCU from low-power modes
• Development tools and software
  • Development tools – MSP CapTIvate™ MCU development kit evaluation: use with CAPTIVATE-PGMR programmer and capacitive touch MSP430FR2633 MCU board CAPTIVATE‑FR2633 Target development board (MSP‑TS430RGE24A)
  • Ease-of-use ecosystem CapTIvate Design Center – code generation, customizable GUI, real-time tuning

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