1 Features

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
  - Enable 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 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 300 pF
- Low power
  - <0.9 µA/button in wake-on-touch mode, where capacitive measurement and touch detection is done by hardware state machine while CPU is asleep
  - Wake-on-touch state machine allows electrode scanning while CPU sleeps
  - 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: 135 µA/MHz (typical)
- Standby: <5 µA wake-on-touch with four sensors
- Shutdown (LPM4.5): 37 nA 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 nonmagnetic
Intelligent digital peripherals
- Four 16-bit timers with three capture/compare registers each (Timer_A3)
- One 16-bit timer with seven capture/compare registers (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
- Two eUSCI_A supports UART, IrDA, and SPI
- Two eUSCI_B supports SPI and I²C
High-performance analog
- One 12-bit analog-to-digital converter (ADC) with up to 12 channels
  - Internal shared reference (1.5, 2.0, or 2.5 V)
  - Sample-and-hold 200 ksps
- One enhanced comparator (eCOMP)
  - Integrated 6-bit DAC as reference voltage
  - Programmable hysteresis
  - Configurable high-power and low-power modes
Clock system (CS)
- On-chip 32-kHz RC oscillator (REFO) with 1 µA support
- 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
- 43 I/Os on LQFP-48 package
- 43 interrupt pins on all GPIOs 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 MSP430FR2676 MCU board CAPTIVATE‑FR2676
  - Target development board MSP‑TS430PT48A
- Ease-of-use ecosystem
  - CapTIvate Design Center – code generation, customizable GUI, real-time tuning
16KB ROM library includes CapTIvate touch libraries and driver libraries
Family members (also see Device Comparison)
- 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
- MSP430FR2673: 16KB of program FRAM, 512B of information FRAM, 4KB of RAM
  supports up to 16 self-capacitive and 64 mutual-capacitive sensors
- MSP430FR2672: 8KB of program FRAM, 512B of information FRAM, 2KB of RAM
  supports up to 16 self-capacitive and 24 mutual-capacitive sensors
Package options
- 48-pin: LQFP (PT)
- 40-pin: VQFN (RHA)
- 32-pin: VQFN (RHB)