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DATA SHEET
MSP430FR267x Capacitive Touch Sensing Mixed-Signal Microcontrollers
1 Features
CapTIvate™ technology
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
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 codeCapTIvate 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 I2 C
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
Ease-of-use ecosystem
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
MSP430FR2675: 32KB of program FRAM, 512B of information FRAM, 6KB of RAM
MSP430FR2673: 16KB of program FRAM, 512B of information FRAM, 4KB of RAM
MSP430FR2672: 8KB of program FRAM, 512B of information FRAM, 2KB of RAM
Package options
48-pin: LQFP (PT)
40-pin: VQFN (RHA)
32-pin: VQFN (RHB)